25 years Army maintenance here. Love to see the ol girl back on the trail. I wanted to mention in case it's not been said before that there is a switch plugged in next to the washer bottle that controls the cooling fan. It's for fording water, if you put the truck in neutral and slam on the gas it activates the switch and will shut the fan off for 15 seconds or so giving you time to enter the water. Doing so otherwise you risk shearing all the blades off the fan. My only other advise is " brake throttle modulation" when stuck like that you can gently ride the brake and power through it. It fools the truck into delivering power equally on all four wheels. Hit me up anytime if you need extra tips. I went to AM General school at the factory in 2012
Pretty sure they have funky diffs in them that are designed to lock up when there's brake application specifically for that very reason. Not a normal gear diff in there, not a normal locker either. Almost makes me wonder how difficult swapping a manual trans into one would be...
@@TestECull if you hit the brake slightly its like the free spinning wheel got resistance from the ground and the dif is diverting some power to the other wheel. maybee enough to drive out. not having lockable difs on each achsle and one between both is the biggest flaw such a vehicle can have i was allways wondering how the humvee got away with this (and without a manual transmission) the second one is not having a strong winch, extra cable, at least one snatchblock and some chans or loops with you while in that trails ;)
At AM General they told us the differential was originally developed for NASCAR but outlawed in the '70s because it allowed you to apply 100% power in the corners without losing control. Then the designer of the Humvee bought the rights and used it. As far as I know this is the only vehicle those differentials have ever been used in. I have videos of us climbing 4 ft concrete square blocks on opposing wheels by just powering through the brakes. I feel like this school should have been something every Humvee operator should have gone through day one. It was one of the best schools Army ever sent me to..
@@Total_Egal yeah.. Not having diff locks is a bit of a shock to me. You would think that would be an absolute must on these things. I'm not sure how the diff's are on these, but you can get lockers for about $1k each for regular 1 ton Dana axles. (which I know this doesn't use -- just a reference). I think putting diff locks on this is the number one upgrade I would ever do to these things.
That is a bare bones 6.2L GM slug. The trans is a TH400 3speed. The engine is a gutless plant, designed to run and idle FOREVER, the gear ratio is ideal for off-road use which doesn't demand much power. The newer HMMWVs have a turbo added to the bigger powerplant and a 4L80 4speed. The newer high output turbo engine was to accommodate the additional weight due to the addition of armor plating. There is a generator to power the radios and other auxiliary equipment that are typically installed for unit use. As already mentioned you found extra radio mast mounts. Yes the rear seats are designed to stow the way you found them to easily convert for field adaptability, two bolts hold the backrest up in place. The side wood slats should pivot down out of the way. Your doors don't fit right because they are the wrong doors, that is a soft top and the correct doors are soft doors (wireframe with vinyl cover), when the proper components are used together (and adjusted aka bent to fit) the result is pretty impressive . Be cautious going hell bent into water holes, the vehicle is more than capable, however, older units are prone to breaking the blades off the cooling fan due to age and use when coming in contact with deep water. Make sure you pay close attention to the geared hubs, they are straight cut gears and need to be treated as such. There are LOTS of other little things to keep an eye out for, look for the US Army Preventative Maintenance Magazine. They are little cartoon pamphlets with good info from the motor pool guys and gals. One last thing, at your own peril though. Those diesels can be an absolute prick to start in the cold, glow plugs or not, one trick (again at your own peril) is to have someone crank the engine while you hold a PMCS manual (any vinyl covered semi rigid book) over the exhaust.
@@64TommyG Yup Get the Intake tube and exhaust pipe for the Marine Corp version They will ford up to the top of the windshield with the deep water fording kit. With out it, I believe fording was only to 30 or 40 inches, I can`t remember which.
Brings back fond memories of when I was a Mortar Platoon Leader in the 101st Abn. I had 7 HMMWV assigned to my unit. We took them everywhere! That HMMWV was like a tank. As long as you know what you are doing, they can go places that Jeep couldn't dream of. (We had jeeps and traded them in for HMMWVs!) Two biggest weaknesses - got remember to let the glow plugs heat before you start it! We went through a lot of glow plugs! And the batteries were always overheating on us. Sucks to sit over the top of batteries that are overheating! Enjoy that HMMWV! Went thru two wars with HMMWVs and they are great vehicles if they are taken care of!
A tip for the fuel filter. When we do it, we take off the dog house, the cover in the cab completing the firewall (in the cab). You have a radio mount in there, but that should just pivot out of the way. It's a bit of an annoyance to get the house outta there with the radio mount on but it's two bolts to take if out if you want. After removing the dog house. There are four bolts by your right knee, you can take them out and pull the whole assembly towards you, hoses and all. Then just take out the four bolts, take the old filter out and plop in a new one. If you do it carefully, you can do it without spilling a drop of diesel. Hope this finds you well. P.S. the radio stand usually holds an AN/PRC-117, lots of different variants but F, Fox, is the usual. So I've been told, comms doesn't leave their radios in when they submit their vehicles to us.
I just wanted to share that this video made me happy. I joined the army as a mechanic at 18 and spent 11 years under the hood of those and other vehicles. Watching you identify and struggle with the same things as I used to brought a smile to my face. Hope you have fun with her. I'd love to have one of my own to greatly improve over the stock design.
As I recall, the two issues most common to our use were: 1. as someone else mentioned, wait for the glow plug cycle to start the engine to save the glow plugs and 2. there were run flat lube bags in the tires. The intent was that if the tire were punctured, you could continue to drive on the metal core on the rim. The lube packs would burst, and keep the friction down between the flat tire and inner rim. The problem was they would burst open on their own if the vehicle traveled more that 55 mph. As the vehicle sat, the lube would settle and coagulate in the bottom of the tire. When you started driving after sitting a while, you would feel the thump of the lube that had settled in the tire. Once it warmed up, the thumping would cease until the next time the vehicle sat for a while. I don't know if your vintage had that option, or if that system became obsolete. but if you experience that problem, that is the reason. The military specs their vehicles to be very reliable, and basically serviceable by the operator, and serviceable in a combat zone. Fun purchase for you, hope you enjoy.
We got our 3/4T HMMWVs issued in '87. It replaced our squad 2-1/2T Dump Trucks (M342A2) and my 1/4T M151A2 Jeep with 1/4T trailer. Definitely some Pluses & Minuses: Cons: Included less capacity than the 2-1/2T but increased capacity over the 1/4T Jeep (even with it's trailer). Thr Truck has a fiberglass hood and cheap, pop riveted sheet metal bed and body. Whoever heard of using fiberglass on a military truck that was going to be abused heavily? Those fiberglass louvers were an accident waiting to happen. If you tap a tree with that hood, it just shaters so easily. And it wasn't hard to rip up the rivets and tear up the sheet metal bed when you're out in the woods. The seats were so uncomfortable. Nothing but a canvas cushion sitting on top of a sheet metal battery box (for the driver) and cargo box (for the passenger). We did a 600 mile convoy between Ft Campbell & Ft Bragg. Talk about your sore backsides. Pros: You called the motor gutless? We found that truck could power through a mudhole so deep, water was about up to the windshield and come out nicely. It was a cargo truck, it handled like a cargo truck and it did it's job as a cargo truck well. The worse problem with exchanging the Jeep for a Humvee was the width of the Humvee. My Jeep was just over 5 feet wide. Narrow enough to sneak between the trees. The Humvee is 8 ft wide! Like a moose going through the brush. The jeep was light enough that 2 guys could get a jeep to climb over a fallen log and keep on going. We could easily push start a jeep if the batter went bad. A Humvee was like 3X the weight. Way too heavy. Final assessment - We sized the Humvee up as a lousy military truck, but it would make an excellent hunting truck for a farmer. It was just too awkward in the woods for military applications.
One of the best 4wd systems ever made. The funny part is that is has 2.73 axels. That sounds like _great_ highway gears and terrible off-road. Until you multiply by the 1.92 portal hubs. Then you end up at a 5.24 axel. No speed and all the torque. Guys who want even more twist drop in 4.10 gears and get a 7.87 final. Low range is almost 3:1, so you could do some serious crawling then. Low range first gear ends up around 53:1 with 4.10s, but even stock is about 25:1.
Hey Matt, a tip for off roading. Take a refillable fire extinguisher with you, the silver / chrome colour one with a schrader valve to put air pressure in it when filled with water. It will be a portable jet wash window washer to clean the windows when you finish off roading. I used to go off roading many years ago. Had one and and washed windows before hitting hte roads going home. A lot better than relying on the screen washer which only does the windscreen. :).
x2 - Also very effective at putting out brush fires- put your finger over the hole to fan it out, and you can extinguish a surprising amount of burning grass.
I've had 1 of these gems for years. Sitting was murder on batteries. Solved my issue with an electric wheel chair charger. Cheap and very effective for maintaining my surplus military 24v systems.
I'm glad to see that meatball is still around I never see you take him to the farm I thought the worst it happened then he had died glad to see hes still kicking
He seems more of a roamer than Roscoe, and everything's been at the farm lately. Matt would spend longer finding Meatball than working. Plus, Meatball's undercarriage is sort of low for the farm mud.
After I worked on these in the military, I used to work at a facility that rebuilt these. We would road test them 50 miles in the winter. We would seal up every gap in the tops and doors with duct tape and plumb the heat on the commander side (passenger) with a heater hose (silicone dryer hose) over to the drivers hole. It wasn’t super hot but it got you by for driving in the winter. I’d say the configuration you have was set up for a unit supply vehicle or for someone like a 1st Sargent. Troop carry racks give it away. Have fun!!
Most troop carriers had the back seats installed like yours were, to maintain a full bed. The pieces wrapped in bubble wrap are antenna mounts, usually for the singcars radio (one or two), and sometimes for a secure phone antenna (MSRT -mobile subscriber radio telephone - style). Those would mount to rear of truck, on either side of the tailgate.
Humvee expert here! Nah, cutting that top off didn't hurt my feelings in the least! Now what ya need to track down is the hoops and troop cover and turn it into a 'covered wagon!' I spent many a cold night in my fart sack at Yakima in a covered wagon!! If you get really gung-ho, you can convert your troop carrier into a soft top, four door, 'command cruiser.' lol
Replace alternator 12v system new batteries new headlights light bar remove doors during summer Heavy rear tow hitch heavy front tow rings. Chains and tow equipment Awesome content
Them vinyl tops are worse in Arizona The sun bakes them and they get Destroyed multiple times a year Here Matt we Use Hard tops here in az because the vinyls have to be replaced more then 2 times a year from the heat and direct sunlight 8:00 @Diesel Creek
The two items in the bubble wrap are for mounting antennas used for the military radios. I use Shell Rotella T5 in my '04 Duramax. That engine now has 502,000 miles on it
Those 1/4 turn fasteners for the top have been around for over a hundred years as Henry Ford used them on the Model Ts for the same purpose . They're called Murphy fasteners and are still used on Amish buggies for the side and rear curtains .
Hello Matt; This video brought back so many memories of when I went into the army as a m 60 tank mechanic, then change my mos to a wheeled vehicle mechanic when the abrams tank came out. loved the video on the 2 1/2 ton truck also. but on the humvee I remember when our unit got the first ones. they would get stuck in the slightest mud. it was the bad design of the tires. didnt take long for them to get different tires lol. The most fun I had was when I was I was on the M80 recovery crew. pulling out stuck or broke down tanks , heavy work but fun. Thats when I was in Germany for 4 years. I really enjoy your videos keep up the good work Steve
The humvee was designed to be able to follow tanks and run in their tracks - maybe you could get a tank at auction and cut some tracks around a forest to run around in.
You have one of the best off-road vehicles made as long as you learn how to operate it. Great thing about military equipment, EVERYTHING has manuals covering from an operator's level to what is known as "back shop" complete tear down and rebuild. These manuals should be easy to acquire from any military surplus facility. The doors you have mimic an up-armor version which form to a hard top. If you find a set of soft side doors to match your soft top you will get a better seal (not complete seal) around the door. Little interesting fact; the little upward slope, or notch, in the body in front of the rear wheels is to allow clearance for climbing a 24" vertical wall. You are correct in your assumptions of the seating configurations and the anti mounts. Although you were placing the anti mounts upside down. The hoops would be on the underside to guard cables. Mind you, the anti that would be used are powerful enough to throw you on your ass if you would grab them while transmitting. Have fun and enjoy your military grade off-road truck. By the way, remembering correctly from my days in the U.S.A. Corps of Engineers, it is also very capable as a hauler with a 1 1/4 ton load capacity.
some advice on these as this one looks in decent shape check the fluid in the portal boxes at each wheel. they make replacement covers that make servicing them cake, a locking diff in the front make a world of a difference off-roading in these, if the center diff has breathers make sure they are extended to the top of the hood so they dont get water in em when fording as some came with short ones or they already rotted off.
These come with either a two person or a four conversion. When I was in the National Guard all the Humvees came with the two or for passenger version. The one that our section was assigned to was a two persons but converted to a four passenger one with soft side canvas top and doors. I was the assigned driver for the S-4 section. The metal flat bracket inside is for the two way military radio receiver.
Love Matt's sense of humor. Did you'all see him sticking both arms out the window, just before going down the hill, like he was on a roller coaster about to go down?
Interesting note on your grease fitting fix. The shop I worked at rarely had the "correct" threaded inserts and usually fixed them exactly how you just did. As far as I am concerned, that is just standard Humvee repair work right there. Also as many have already mentioned, the two unknown pieces were universal antenna/convoy light mounts. The nice thing about the canvas top is they are cheap and easy to repair compared to the plate top. The downside is they degrade quickly and are really never dry in wet weather.
That button on the dash labeled "B" is to engage BEAST MODE. Lockers would be a tremendous addition. Wonderful ending "edge of the escarpment" shot. Perfect.
Was wondering when you'd get around to posting this one. Have logged MANY miles in those things. Each of the bubble-wrapped pieces is for a "matching unit," which is the large cylindrical base and spring that mounts to the outside of the body (usually the rear) of the vehicle and onto which the long whip antenna would be threaded/screwed. The matching unit is a compensator that enables radios to send and receive on a wide range of frequencies using one fixed-length antenna. They're not much use outside of military functions but were in use from 60s-90s. You may be able to trade them off to groups who restore military vehicles - or have fun upcycling them to something different. Most came with the back seats under the floor as did yours. As there are no back doors, this one is a two-seater (but with hard shell front doors...). You could easily install a 4-seater soft top and doors and replace the rotted seats so you could torture passengers - they're not comfortable. You would need to find a LOT of hardware to convert it to a 2-seater hardtop (maybe Pomeroy PD still has the pieces lying around?), 4-seater hardtop or even the 5-door hatchback - good luck with that. Ply a mechanic at your local National Guard armory wtih coffee and donuts. They'll be a wealth of information for the lesser-known issues associated with that generation of vehicle (e.g., floppy fan belts, fiberglass pieces, tire maintenance (LOADS of fun there), etc. Unique pieces (tires!) can get expensive. Major downer is that they're NOT fuel efficient and diesel, sooooo... On the other hand - and as you have discovered - it has superior traction and offroad capabilities - your friend's jeep is no longer top dog. Good luck and thanks for posting.
One thing to do during an oil change is smell the oil and make sure there's no diesel smell. The mechanical lift pumps on the front passenger side of the engine have a bladder in them that separates the crankcase oil from the diesel. It degrades over time and will pump diesel into the crank. That ain't good :P
"It's only temporary unless it works" 😂😂 A man after my own heart. I've got zip ties holding my F250's tailgate handle mechanism together inside and they were "temporary" a year ago...
As others have mentioned, those have Torsen like differentials front and rear. These lock up more and more from side to side as more torque is applied to the input. If traction is low and there isn't enough resistance at the wheels to lock them up, you can use left foot braking combined with right foot throttle to lock up the differentials. Even with two diagonal tires completely in the air, if you apply the brakes enough and apply the throttle enough you can lock up the differentials completely and get power to the two tires that aren't in the air. One trick to greatly improve the differential input torque is to put the transfer case into low range when off roading. In low range the differentials lock up easily with left foot braking and this really helps with getting through rutted muddy trails.
Exactly ... great comment. With emphasis to be in 4 low for the funky diff lockers on Humvees ... but even on my old Toyota HiLux diesel the electric diff locks won't engage unless in 4 low ... engaged, she'll climb like a Billy Goat.
Yeah, that's one that was a 4man that was converted to a two man (with troop seats), the the antenna mount you found has the three bolt pattern go to the back of the truck above the tail light basically the same as the one on there, the dancing voltmeter is cause the voltage regulators on these like to shit themselves all the time. They'll usually run on a bad voltage regulator for awhile before they stop working on you
If your ignition switch ever dies on you and you need to move it in a pinch, you can jump start it by move the switch to the run position, opening the data port near the shifter lever, and jumping the "S" and "T" holes to each other with an insulated wire.
Looks like you got a sweet deal on that Hummer. As a retired Army guy I had lots of fun driving those all over the world. They will take you plenty of remote places. The bubble wrapped brackets you found in the back are Antenna mounts and would have been located on the back quarter panels on either side of the tail gate. The large shelf in between the driver and passenger seats is where your comm gear would go. Definitely service the hub gears and let the glow plugs cycle before starting. Don't expect to stay dry or warm in your current configuration, you won't. All the lift / tie down points on the vehicle are truly designed for that purpose. It doesn't look like Pvt Snuffy has poked holes in the floor pans to assist with draining while at the wash rack which is good. Enjoy and put it through the paces.
Matt, I have worked on many of the GM 6.2/6.5 variants back in the day they are a pain an the azz boat anchor. Even turned up they are balless. I would convert it to a spin on fuel filter if you are going to keep it. Also priming that stock filter disconnect the spade off the fuel shut off solenoid when you crank it over to prime it will keep the injector pump from running dry or starting the engine while priming. Those Stanodyne pumps can be a bitch to reprime when the are full of air. Those engines require the glow plugs to work all the time, even here in Florida hot as it is, and don't use cheapo glow plugs if you replace them { Champions are JUNK!!!} they tend to mushroom the tip of the plug when they crap out I have had to pull heads to get them out. If you are keeping it I would 4 door it and put the slant back hard top on it.
Power or lack there of is a relative thing. Under powered? Hardly, the thing will go just about anywhere off road and if it won’t, lack of engine power will not be the cause. The problem is we are accustomed to modern 4x4s that have plenty of highway power. Two different vehicles as those modern 4x4s won’t get to half the places the your hummer will. Look at the pre 80’s Land Rovers and Land Cruisers, slow, underpowered, unrefined, rough ride and noisy until you turn off the bitumen. Then they suddenly became strong, reliable, tough go anywhere vehicles that were heaps of fun. If you bought your hummer for highway cruising, you bought the wrong car. For getting around your area it’s probably perfect. Cheers Stuart 🇦🇺
Those fasteners are called Rivnuts. They require a special tool to install, but go in easily. Besides the low visibility from inside the cab and the school bus turn radius, humvees are fun to drive. In good weather, pop the top and have a ball.
I ran those engines for years in several different trucks back in the late 80s and early 90s . The easiest way to get more power out of one is to advance the timing on the injection pump. There is a mark on the pump and one on the cast housing. Advance the pump to the with of a Nicole. You will be surprised by the extra power you will have and it never seemed to hurt anything. I drove them for years that way.
It’s great to see Meatball! I rewatched one of your old videos recently where you were kicking a giant ball around and he was chasing it, then I realized I hadn’t saw him in forever!
Matt, at 26:20 in the video I see the light switch is off. Make sure you leave the top lever in the first notch to the right or you will not have any brake lights! (You need to lift the bottom right lever to unlock the top lever.) Also, make sure the left liwer lever is in the off position when parked or it will kill your batteries. Or install a battery cutoff switch. And the military uses non commercial components so you can't use them on normal personal vehicles.
As you can see the top has seen better days lets see if we can scare up a replacement for it and Your Slow movement trying to get unstuck from the top was hilarious Matt 4:35 @Diesel Creek
Torsen diffs- you can see it free-wheeling when the one was in the air. Give it a bit of brake to help out- Torsen is torque-bias multiplying, if a wheel is in the air there is zero resistance, so it won't have anything to multiply against if that makes sense. A little brake will send power back over to the other wheel.
It may be gutless by todays standards. In the mid 80’s when they were introduced to the military they replaced the Jeep. In comparison these were monsters. Great video, brings me back to the first time I drove one. 👍
they replaced the jeep mostly because the military wanted a vehicle that could ride on the same transports as the tanks - it's the only reason it's so wide. For practical use the Jeep was more than adequate for the job and in forests and such far superior
one thing to remember on all gm diesels especially with 6.2,6.5 turbo detroits there built for fuel economy and because they were the cheapest thing the military could get both th cucv(squarebodys) and humvees you will need to add some straight pipe where the muffler fell off (also be very cautious of the pipes going to the airbox if there cracked you will hydrolock the engine cleetus mcfarland found that out the hard way (all your breathers go to the box to make sure there in good shape too)
I see everyone has covered the facts about the engine and its power, that is not needed, as that vehicle if driven correctly cannot be stuck, but just remember if traveling down a washboard road, there is a learning curve there. As for the mounts that match up the the antennae mounts, those are indeed guards for the porcelain base of the whip antennas. Those are in fact bullet proof units that can climb anything. I remember when they first came out in the testing phase. The reps were saying give em hell, and my platoon leader and platoon Sargent were saying be careful and do not break them. Thats all well and good until you get out in the woods and your buddy asks if your up for follow the leader.
Finally someone with common sense and actually rides offset to the trail grooves for the most to not dig yourself into it. I’ve seen so many ppl get stuck like this when they can just scoot over and ride the higher ground. Unless there’s so space on the sides of course lol.
Those brackets wrapped in bubble wrap are antenna mounts. You could get the air intake snorkel and exhaust extension like what's on the USMC version HMMWV
Well, that was fun! A bit of a departure for the usual fare but quite enjoyable. Thanks for the time involved in setting it up. Glad to see you can accomplish many things and have fun as well! Video was very nicely done and easy to watch. Thanks again Matt!
Man, I've never commented your videos before. But let me tell you...this was bad to the bone, quality content. Andrew Camarata and your channel are by far 2 of my favorites! Keep up the hard work man, it's really paying off... Robert from Mississippi
Get the -10 manual!!!! One very important thing to check from my Army National Guard days are the THREE ball joint castellated nuts on each wheel. Each has a cotter pin. Check each to insure there is a cotter pin. I found two during maintenance times that were missing! Losing that nut would not be good! CHECK and report bac Matt!
Between Baghdad and Ft. Hood downrange, we buried ours ALL the time. Hell I may have to get me one one of these days. Prices are still too stupid high for me at the moment. One thing we always had issues with was the half shafts and brakes. Keep the PMCS up on em. C Co 1-12 Cavalry, 1CD
The nutserts in the windshield frame always fall out and the channel bar that goes over the door is always loose haha. They are super easy to fix though. The model number of the truck will tell you wether it was a 2 door or 4 door model but all the extra pieces are the seat pans and seat backs. You would just have to get doors and take off the hell hole covers.
36:30 One thing I remember about riding jeep trails with my HUMMER is they are not wide enough. 38:30 with that open exhaust pipe backing up could plug the pipe. I don't know how the exhaust was run on the HUMVEEs but the civilian HUMMER had the exhaust loop up over the rear axle inside the left rear wheelwell which created a seal to keep water out of the exhaust system when running through deep water. Downside of that was the exhaust pipe radiated a lot of heat into the wheelwell and that heated up the tire. Was only a problem on long runs at high speeds though like turnpike driving which the HUMMER is not designed to run over 60 MPH for extended periods.
@@TylerDuysen I thought so but couldn't remember how they were configured. The HUMMER (civilian version which GM renamed the H1) and the HUMVEE are pretty much the same animal and go down the same assembly line up until the dash and wiring harness goes in. Then they start to diverge and go their separate ways. That's what I saw when we toured the AMG assembly plant years ago. At the time the H2 didn't even exist except for the prototype which they showed off at the event (first Hummer Homecoming) and the H2 assembly plant was still under construction in 2000.
@12:56 those are indeed antenna holders. but they mount to the vehicle with the 3 bolts on the other side. the 4 bolts are for the antenna itself. so u have them facing the other way around. the "triangle" should be facig down.
Hi Matt Try removing the oil dipstick as you are filling your funnel, you’ll find it’ll flow without air locking up the filler tube. Great vid, keep them coming, best wishes👍🏻🙂.
Great to see you having some deserved fun knowing all who watch would have loved that too. And then a little teaser right at the end for new shop. Well Done Matt.
Per The Book, to go 4-seater, you have to delete the stake bed sides and install another headache bar aft of them. The vehicles were designed to go "flat" level with top of the windshield mount, so, everything comes loose and stows in the back. Those seat recesses were notorious for holding all kinds of "contraband."
The Humvee is a beast, all come with the rear back rest when used in the 2 man mode, the green things are antenna holders. BE CAREFUL, the brakes stop the axle shafts and no the wheels. You can twist off the shaft in front by having the wheel spinning and slam on brakes.
Been a little while since I drove one, but I think the transfer case has H, HL and LL settings. The H is for most general use, but the HL and LL both lock the differential so you won't have opposing wheels spinning. As you said, probably one of the most off-road capable vehicles made.
I'd reuse some of the old canvas to recover the seat with.,or try to order in replacement covers. Cb antenna holder's.& Communication antenna protector's for off the back of the humvee trucks.
When your loosing traction, put a little pressure on the brake pedal. You have torsion differentials. There like limited slip. To engage use a little brake pedal.
I was in the US Army for 16 years and I believe your frustration with some of the nuisance parts and location of the HMMWV. They do great off road when it is built light, but they drive like a slug if it is up armored. It is never a pleasant drive on the highway with its annoying steering play, stiff suspension and road noise but as an off road vehicle, they are magnificent! You can have the engine tuned and add a better turbo to have more throttle response and a bottom skid plate to protect its belly and that would be a great off road vehicle. If I had the space, I would definitely buy one...
We drove those things into the dirt during the Gulf War. They worked fairly well at first, but after months driiving around in the desert with temps as high as 130 degrees outside, they had all the power of a go-cart at the end of our tour.
I'd be checking out the charging system on it then for sure Matt. If the voltage meter is jumping around like that. It's A good sign of possibly bad voltage regulator in either the alternator.,or the generator one has bad brushes inside of it.& A bad voltage regulator inside of it to.
That was GREAT!!! I like the shot of you going 3 wheeling for just a moment. Nice to see you having some fun Matt. You earned it. As always, thanks for bringing us along.
I have always wanted an H1. I took 1 home from work one night. I took it out on the farm to get some offroad pictures. I ran into mud on the drive to the spot for pictures. I could feel it sinking in the mud but it just kept on moving. It was amazing. I am pretty sure my lifted and tired pickup would not have gone thru that.
I’ve had a couple of those from GovPlanet. Lots of fun but almost no creature comforts. At least the heaters really put out some hot air. Be ready for a noisy, drafty ride. At least you got hard doors. It’s probably been mentioned but look up a fairly rare spontaneous combustion issue. I always disconnected the batteries when it was in the barn. Enjoy all the thumbs up you’ll get driving it. Btw gentle pressure on the brakes will lock your diffs if you get too off camber.
I’ve always dreamed of owning a hummer just like yours!! You got one hell of a deal and a nice machine that will last forever, glad to see meatball and rosco, I’d turn it into a 4 seater and take the family off-roading, great video Matt you are living the dream for me 😋
Hey Matt, Another one of the more common problems is the alternator bracket bolts on the left front of the engine. If not torqued properly with locktite, they will loosen, then break off in the head.
@@wakeupamerica2971 Yeah, but I think he also told us a little later that he was postponing it as he was offered a very close date and he had no way to get the pad done in time. Ah, however, I bet we will see soon.
In extreme conditions, apply some brakes while applying throttle to get the Torsen differentials to bias, transferring power to the wheel with more traction. It will slip up if traction imbalance is too much, but they differentiate very well. Enjoy your humvee!
40:37 Just like in the jungles of Saigon, the (jack@55) commander stops shorts in hard block mode, exits, then waves the troop carrier forward. LOL All in fun, couldn't resist.
That model Humvee wasn't meant to have hard doors with a canvas top. They have canvas doors that you can tweak to seal a little better, but other than that, take a rainsuit
Matt especially considering what you paid for the Humvee I would keep it. Looks like a lot of fun. I can't get over how much the PA scenery resembles my home state of Kentucky
Antenna mounting brackets you found under back seat. Gold bars have been found in fuel tanks of desert storm equipment that came back to domestic soil.
25 years Army maintenance here. Love to see the ol girl back on the trail. I wanted to mention in case it's not been said before that there is a switch plugged in next to the washer bottle that controls the cooling fan. It's for fording water, if you put the truck in neutral and slam on the gas it activates the switch and will shut the fan off for 15 seconds or so giving you time to enter the water. Doing so otherwise you risk shearing all the blades off the fan. My only other advise is " brake throttle modulation" when stuck like that you can gently ride the brake and power through it. It fools the truck into delivering power equally on all four wheels. Hit me up anytime if you need extra tips. I went to AM General school at the factory in 2012
Awesome advice!
Pretty sure they have funky diffs in them that are designed to lock up when there's brake application specifically for that very reason. Not a normal gear diff in there, not a normal locker either.
Almost makes me wonder how difficult swapping a manual trans into one would be...
@@TestECull if you hit the brake slightly its like the free spinning wheel got resistance from the ground and the dif is diverting some power to the other wheel. maybee enough to drive out.
not having lockable difs on each achsle and one between both is the biggest flaw such a vehicle can have i was allways wondering how the humvee got away with this (and without a manual transmission)
the second one is not having a strong winch, extra cable, at least one snatchblock and some chans or loops with you while in that trails ;)
At AM General they told us the differential was originally developed for NASCAR but outlawed in the '70s because it allowed you to apply 100% power in the corners without losing control. Then the designer of the Humvee bought the rights and used it. As far as I know this is the only vehicle those differentials have ever been used in. I have videos of us climbing 4 ft concrete square blocks on opposing wheels by just powering through the brakes. I feel like this school should have been something every Humvee operator should have gone through day one. It was one of the best schools Army ever sent me to..
@@Total_Egal yeah.. Not having diff locks is a bit of a shock to me. You would think that would be an absolute must on these things. I'm not sure how the diff's are on these, but you can get lockers for about $1k each for regular 1 ton Dana axles. (which I know this doesn't use -- just a reference). I think putting diff locks on this is the number one upgrade I would ever do to these things.
I’m loving all the comments and suggestions from our veterans that worked on these and drove them. Thank you all for your service.
The two are antenna mounts but can be used as convoy light mounts as long as they are steel and not aluminum.
Those are aluminum for sure
I thought they were beer can holders.
@@davidholder3207 not if you want to get the cans with you 🙂
@@davidholder3207 isn't everything a beer holder? I definitely know my hand is!
They can also be used to hold fishing rods
That is a bare bones 6.2L GM slug. The trans is a TH400 3speed. The engine is a gutless plant, designed to run and idle FOREVER, the gear ratio is ideal for off-road use which doesn't demand much power. The newer HMMWVs have a turbo added to the bigger powerplant and a 4L80 4speed. The newer high output turbo engine was to accommodate the additional weight due to the addition of armor plating. There is a generator to power the radios and other auxiliary equipment that are typically installed for unit use. As already mentioned you found extra radio mast mounts. Yes the rear seats are designed to stow the way you found them to easily convert for field adaptability, two bolts hold the backrest up in place. The side wood slats should pivot down out of the way. Your doors don't fit right because they are the wrong doors, that is a soft top and the correct doors are soft doors (wireframe with vinyl cover), when the proper components are used together (and adjusted aka bent to fit) the result is pretty impressive . Be cautious going hell bent into water holes, the vehicle is more than capable, however, older units are prone to breaking the blades off the cooling fan due to age and use when coming in contact with deep water. Make sure you pay close attention to the geared hubs, they are straight cut gears and need to be treated as such. There are LOTS of other little things to keep an eye out for, look for the US Army Preventative Maintenance Magazine. They are little cartoon pamphlets with good info from the motor pool guys and gals. One last thing, at your own peril though. Those diesels can be an absolute prick to start in the cold, glow plugs or not, one trick (again at your own peril) is to have someone crank the engine while you hold a PMCS manual (any vinyl covered semi rigid book) over the exhaust.
A higher air intake may be a saver in deep water?
@@64TommyG Yup Get the Intake tube and exhaust pipe for the Marine Corp version They will ford up to the top of the windshield with the deep water fording kit. With out it, I believe fording was only to 30 or 40 inches, I can`t remember which.
We keep a deck board in the back to cover the exaust in the winter lol didnt take long to fiure out it was needed
Lotta good info in that one comment. Thank you for your time.
And boy did idle my fair share of hmmwv
You have amazing comment section. So many veterans sharing awesome tips about Humvees.
Brings back fond memories of when I was a Mortar Platoon Leader in the 101st Abn. I had 7 HMMWV assigned to my unit. We took them everywhere! That HMMWV was like a tank. As long as you know what you are doing, they can go places that Jeep couldn't dream of. (We had jeeps and traded them in for HMMWVs!) Two biggest weaknesses - got remember to let the glow plugs heat before you start it! We went through a lot of glow plugs! And the batteries were always overheating on us. Sucks to sit over the top of batteries that are overheating! Enjoy that HMMWV! Went thru two wars with HMMWVs and they are great vehicles if they are taken care of!
Great comment! I'm sure you've got some great stories you could share. Thank you so much for your service Matt 🇺🇸
Thanks for your service, those memories are something that you will treasure as you get older, enjoy them!
Things sure did change from 1965 to 1992. Went from Jeeps to HMMWV'S and C - rations to MRE's. Both were pleasent changes. LOL
What's the reason you went through so many glow plugs?
Invasions*
those two antenna mounts would make some awesome cup holders.
“It’s only temporary, unless it works!” Famous words to live by when working on old machines…
Yeah, those "temporary" improvised substitutes use to be around forever, once deployed.
The most permanent solution is a temporary one.
A tip for the fuel filter. When we do it, we take off the dog house, the cover in the cab completing the firewall (in the cab). You have a radio mount in there, but that should just pivot out of the way. It's a bit of an annoyance to get the house outta there with the radio mount on but it's two bolts to take if out if you want. After removing the dog house. There are four bolts by your right knee, you can take them out and pull the whole assembly towards you, hoses and all. Then just take out the four bolts, take the old filter out and plop in a new one. If you do it carefully, you can do it without spilling a drop of diesel. Hope this finds you well.
P.S. the radio stand usually holds an AN/PRC-117, lots of different variants but F, Fox, is the usual. So I've been told, comms doesn't leave their radios in when they submit their vehicles to us.
Stunning view of that canyon with water in it and all the trees Matt 45:08 @Diesel Creek
I just wanted to share that this video made me happy. I joined the army as a mechanic at 18 and spent 11 years under the hood of those and other vehicles. Watching you identify and struggle with the same things as I used to brought a smile to my face. Hope you have fun with her. I'd love to have one of my own to greatly improve over the stock design.
bingo!!!!!!!!!!!!!!!!!!!!!!
As I recall, the two issues most common to our use were: 1. as someone else mentioned, wait for the glow plug cycle to start the engine to save the glow plugs and 2. there were run flat lube bags in the tires. The intent was that if the tire were punctured, you could continue to drive on the metal core on the rim. The lube packs would burst, and keep the friction down between the flat tire and inner rim. The problem was they would burst open on their own if the vehicle traveled more that 55 mph. As the vehicle sat, the lube would settle and coagulate in the bottom of the tire. When you started driving after sitting a while, you would feel the thump of the lube that had settled in the tire. Once it warmed up, the thumping would cease until the next time the vehicle sat for a while. I don't know if your vintage had that option, or if that system became obsolete. but if you experience that problem, that is the reason. The military specs their vehicles to be very reliable, and basically serviceable by the operator, and serviceable in a combat zone. Fun purchase for you, hope you enjoy.
ya the tire packets are of yesteryear with radial tires and rims it uses a rubber run flat not the magnesium one
Exactly, turn it to the run position for a few seconds until the light comes on! And then turn it on! Have fun!!
HEY! Good morning Matt and thumbs UP!! Happy Sunday everybody!
We got our 3/4T HMMWVs issued in '87. It replaced our squad 2-1/2T Dump Trucks (M342A2) and my 1/4T M151A2 Jeep with 1/4T trailer. Definitely some Pluses & Minuses:
Cons: Included less capacity than the 2-1/2T but increased capacity over the 1/4T Jeep (even with it's trailer). Thr Truck has a fiberglass hood and cheap, pop riveted sheet metal bed and body. Whoever heard of using fiberglass on a military truck that was going to be abused heavily? Those fiberglass louvers were an accident waiting to happen. If you tap a tree with that hood, it just shaters so easily. And it wasn't hard to rip up the rivets and tear up the sheet metal bed when you're out in the woods. The seats were so uncomfortable. Nothing but a canvas cushion sitting on top of a sheet metal battery box (for the driver) and cargo box (for the passenger). We did a 600 mile convoy between Ft Campbell & Ft Bragg. Talk about your sore backsides.
Pros: You called the motor gutless? We found that truck could power through a mudhole so deep, water was about up to the windshield and come out nicely. It was a cargo truck, it handled like a cargo truck and it did it's job as a cargo truck well.
The worse problem with exchanging the Jeep for a Humvee was the width of the Humvee. My Jeep was just over 5 feet wide. Narrow enough to sneak between the trees. The Humvee is 8 ft wide! Like a moose going through the brush. The jeep was light enough that 2 guys could get a jeep to climb over a fallen log and keep on going. We could easily push start a jeep if the batter went bad. A Humvee was like 3X the weight. Way too heavy.
Final assessment - We sized the Humvee up as a lousy military truck, but it would make an excellent hunting truck for a farmer. It was just too awkward in the woods for military applications.
One of the best 4wd systems ever made. The funny part is that is has 2.73 axels. That sounds like _great_ highway gears and terrible off-road. Until you multiply by the 1.92 portal hubs. Then you end up at a 5.24 axel. No speed and all the torque. Guys who want even more twist drop in 4.10 gears and get a 7.87 final. Low range is almost 3:1, so you could do some serious crawling then. Low range first gear ends up around 53:1 with 4.10s, but even stock is about 25:1.
Hey Matt, a tip for off roading. Take a refillable fire extinguisher with you, the silver / chrome colour one with a schrader valve to put air pressure in it when filled with water. It will be a portable jet wash window washer to clean the windows when you finish off roading. I used to go off roading many years ago. Had one and and washed windows before hitting hte roads going home. A lot better than relying on the screen washer which only does the windscreen. :).
x2 - Also very effective at putting out brush fires- put your finger over the hole to fan it out, and you can extinguish a surprising amount of burning grass.
I've had 1 of these gems for years. Sitting was murder on batteries. Solved my issue with an electric wheel chair charger. Cheap and very effective for maintaining my surplus military 24v systems.
Wouldn't it work to install a battery cut-off switch for it too?
Nothing a DIY battery disconnect switch couldn’t fix.
or just buy a 24v battery charger...
you know that it is actually quite common 'outside the usa' to use 24v in almost all commercial vehicles???
@@steved2136 Many of the older commercial vehicles are 24v
@@mrmotofy Many of our older ones were 12v, but probably since the 1980's or so, they have been almost all 24v from the 4 tonners up
I'm glad to see that meatball is still around I never see you take him to the farm I thought the worst it happened then he had died glad to see hes still kicking
Joe Smith keepin it real
He seems more of a roamer than Roscoe, and everything's been at the farm lately. Matt would spend longer finding Meatball than working. Plus, Meatball's undercarriage is sort of low for the farm mud.
@@MGower4465 Matt needs to put a lift kit on Meatball 😊 Good to see him around
@@MGower4465 meatball is not much use without his big ball😂
After I worked on these in the military, I used to work at a facility that rebuilt these. We would road test them 50 miles in the winter. We would seal up every gap in the tops and doors with duct tape and plumb the heat on the commander side (passenger) with a heater hose (silicone dryer hose) over to the drivers hole. It wasn’t super hot but it got you by for driving in the winter. I’d say the configuration you have was set up for a unit supply vehicle or for someone like a 1st Sargent. Troop carry racks give it away. Have fun!!
Looks like fun! Wouldn’t want to be getting shot at in it though…
Thanks to all those that served, you are under appreciated 🇺🇸
Matt, your like a kid with a new toy everytime you get a new piece of equipment, absolutely brilliant man.
Most troop carriers had the back seats installed like yours were, to maintain a full bed. The pieces wrapped in bubble wrap are antenna mounts, usually for the singcars radio (one or two), and sometimes for a secure phone antenna (MSRT -mobile subscriber radio telephone - style). Those would mount to rear of truck, on either side of the tailgate.
Humvee expert here! Nah, cutting that top off didn't hurt my feelings in the least! Now what ya need to track down is the hoops and troop cover and turn it into a 'covered wagon!' I spent many a cold night in my fart sack at Yakima in a covered wagon!! If you get really gung-ho, you can convert your troop carrier into a soft top, four door, 'command cruiser.' lol
Replace alternator 12v system new batteries new headlights light bar remove doors during summer
Heavy rear tow hitch heavy front tow rings. Chains and tow equipment
Awesome content
Them vinyl tops are worse in Arizona The sun bakes them and they get Destroyed multiple times a year Here Matt we Use Hard tops here in az because the vinyls have to be replaced more then 2 times a year from the heat and direct sunlight 8:00 @Diesel Creek
The two items in the bubble wrap are for mounting antennas used for the military radios. I use Shell Rotella T5 in my '04 Duramax. That engine now has 502,000 miles on it
Shell Rotella has all the dinosaurs and vitamins!
That’s awesome. My dads got an 09 with 336,000 on it. He uses mobile delvac but I’m not here to argue about oil just complementing duramax engines
@@johnsipes4422 😮
Those 1/4 turn fasteners for the top have been around for over a hundred years as Henry Ford used them on the Model Ts for the same purpose . They're called Murphy fasteners and are still used on Amish buggies for the side and rear curtains .
used worldwide on baby carriages as well
Maybe that's where the saying Jesus Murphy came from?🤔🤣
In Australia we call them commonsense fasteners or turn buttons
Matt, I love your introductory opening gif of your vehicles running over the camera, pretty impressive after all these years.
Hello Matt; This video brought back so many memories of when I went into the army as a m 60 tank mechanic, then change my mos to a wheeled vehicle mechanic when the abrams tank came out. loved the video on the 2 1/2 ton truck also. but on the humvee I remember when our unit got the first ones. they would get stuck in the slightest mud. it was the bad design of the tires. didnt take long for them to get different tires lol. The most fun I had was when I was I was on the M80 recovery crew. pulling out stuck or broke down tanks , heavy work but fun. Thats when I was in Germany for 4 years. I really enjoy your videos keep up the good work Steve
being a Navy Vet I can tell you that the ")" with a slash through it is how we write a zero. I will bet a lot of other vets still do it too.
The humvee was designed to be able to follow tanks and run in their tracks - maybe you could get a tank at auction and cut some tracks around a forest to run around in.
well he kind of already has one... it looks like a dozer!! Just tell a seabee otherwise.
See if you can borrow rich's tabke from deboss garage! 👌🙃
You have one of the best off-road vehicles made as long as you learn how to operate it. Great thing about military equipment, EVERYTHING has manuals covering from an operator's level to what is known as "back shop" complete tear down and rebuild. These manuals should be easy to acquire from any military surplus facility.
The doors you have mimic an up-armor version which form to a hard top. If you find a set of soft side doors to match your soft top you will get a better seal (not complete seal) around the door.
Little interesting fact; the little upward slope, or notch, in the body in front of the rear wheels is to allow clearance for climbing a 24" vertical wall.
You are correct in your assumptions of the seating configurations and the anti mounts. Although you were placing the anti mounts upside down. The hoops would be on the underside to guard cables. Mind you, the anti that would be used are powerful enough to throw you on your ass if you would grab them while transmitting.
Have fun and enjoy your military grade off-road truck.
By the way, remembering correctly from my days in the U.S.A. Corps of Engineers, it is also very capable as a hauler with a 1 1/4 ton load capacity.
I’m surprised they told you about no touchy the antenna bases, or did someone learn the hard way? 😂
@@ebolawarrior451 ohh we were warned but also there are large yellow WARNING stickers on the antenna 😉
some advice on these as this one looks in decent shape check the fluid in the portal boxes at each wheel. they make replacement covers that make servicing them cake, a locking diff in the front make a world of a difference off-roading in these, if the center diff has breathers make sure they are extended to the top of the hood so they dont get water in em when fording as some came with short ones or they already rotted off.
The performance upgrade sounds amazing She throaty on thst exhaust lol 😂 35:00 @Diesel Creek
Most helpful and knowledgeable comments section I've seen in a while.
These come with either a two person or a four conversion. When I was in the National Guard all the Humvees came with the two or for passenger version. The one that our section was assigned to was a two persons but converted to a four passenger one with soft side canvas top and doors. I was the assigned driver for the S-4 section. The metal flat bracket inside is for the two way military radio receiver.
Love Matt's sense of humor. Did you'all see him sticking both arms out the window, just before going down the hill, like he was on a roller coaster about to go down?
Interesting note on your grease fitting fix. The shop I worked at rarely had the "correct" threaded inserts and usually fixed them exactly how you just did. As far as I am concerned, that is just standard Humvee repair work right there. Also as many have already mentioned, the two unknown pieces were universal antenna/convoy light mounts. The nice thing about the canvas top is they are cheap and easy to repair compared to the plate top. The downside is they degrade quickly and are really never dry in wet weather.
That button on the dash labeled "B" is to engage BEAST MODE.
Lockers would be a tremendous addition.
Wonderful ending "edge of the escarpment" shot. Perfect.
Humvee gets Routinr Maintenance and some offroad fun Heck Yeah Matt 33:09 @Diesel Creek
WOO HOO! I see building material being unloaded! I know that all of us are looking forward to Matt's shop being built! Hell yeah !! 👍
Was wondering when you'd get around to posting this one. Have logged MANY miles in those things. Each of the bubble-wrapped pieces is for a "matching unit," which is the large cylindrical base and spring that mounts to the outside of the body (usually the rear) of the vehicle and onto which the long whip antenna would be threaded/screwed. The matching unit is a compensator that enables radios to send and receive on a wide range of frequencies using one fixed-length antenna. They're not much use outside of military functions but were in use from 60s-90s. You may be able to trade them off to groups who restore military vehicles - or have fun upcycling them to something different. Most came with the back seats under the floor as did yours. As there are no back doors, this one is a two-seater (but with hard shell front doors...). You could easily install a 4-seater soft top and doors and replace the rotted seats so you could torture passengers - they're not comfortable. You would need to find a LOT of hardware to convert it to a 2-seater hardtop (maybe Pomeroy PD still has the pieces lying around?), 4-seater hardtop or even the 5-door hatchback - good luck with that. Ply a mechanic at your local National Guard armory wtih coffee and donuts. They'll be a wealth of information for the lesser-known issues associated with that generation of vehicle (e.g., floppy fan belts, fiberglass pieces, tire maintenance (LOADS of fun there), etc. Unique pieces (tires!) can get expensive. Major downer is that they're NOT fuel efficient and diesel, sooooo... On the other hand - and as you have discovered - it has superior traction and offroad capabilities - your friend's jeep is no longer top dog.
Good luck and thanks for posting.
One thing to do during an oil change is smell the oil and make sure there's no diesel smell. The mechanical lift pumps on the front passenger side of the engine have a bladder in them that separates the crankcase oil from the diesel. It degrades over time and will pump diesel into the crank. That ain't good :P
just like the fuel pump on p.much every carburetted gas engine by the sounds of it.
@@TestECull on a ton of diesels too
Cleetus McFarland had a vid where they drained the oil and put diesel in and got like 40 laps before it finally gave out
Wait til the glow plugs go out also WAIT til the WAIT LIGHT GOES OUT before you start the HMMWV
Man that smile on your face says a thousand words, it is so good to see people having fun
"It's only temporary unless it works" 😂😂 A man after my own heart. I've got zip ties holding my F250's tailgate handle mechanism together inside and they were "temporary" a year ago...
As others have mentioned, those have Torsen like differentials front and rear. These lock up more and more from side to side as more torque is applied to the input.
If traction is low and there isn't enough resistance at the wheels to lock them up, you can use left foot braking combined with right foot throttle to lock up the differentials.
Even with two diagonal tires completely in the air, if you apply the brakes enough and apply the throttle enough you can lock up the differentials completely and get power to the two tires that aren't in the air.
One trick to greatly improve the differential input torque is to put the transfer case into low range when off roading. In low range the differentials lock up easily with left foot braking and this really helps with getting through rutted muddy trails.
Exactly ... great comment. With emphasis to be in 4 low for the funky diff lockers on Humvees ... but even on my old Toyota HiLux diesel the electric diff locks won't engage unless in 4 low ... engaged, she'll climb like a Billy Goat.
Yeah, that's one that was a 4man that was converted to a two man (with troop seats), the the antenna mount you found has the three bolt pattern go to the back of the truck above the tail light basically the same as the one on there, the dancing voltmeter is cause the voltage regulators on these like to shit themselves all the time. They'll usually run on a bad voltage regulator for awhile before they stop working on you
Yeah they buried two semi comfy seats and installed peasant racks. I bet they are a joy to sit on when off road.
It's a factory 2 man. There's no holes on the back wheel wells for the seatbelts. All 2 man Humvees have the seats hidden like that.
@@dylansnyder7757 heck no man, most of them don't even have the box the seats go on. Unless the zoomies or squids do it different
If your ignition switch ever dies on you and you need to move it in a pinch, you can jump start it by move the switch to the run position, opening the data port near the shifter lever, and jumping the "S" and "T" holes to each other with an insulated wire.
Looks like you got a sweet deal on that Hummer. As a retired Army guy I had lots of fun driving those all over the world. They will take you plenty of remote places. The bubble wrapped brackets you found in the back are Antenna mounts and would have been located on the back quarter panels on either side of the tail gate. The large shelf in between the driver and passenger seats is where your comm gear would go. Definitely service the hub gears and let the glow plugs cycle before starting. Don't expect to stay dry or warm in your current configuration, you won't. All the lift / tie down points on the vehicle are truly designed for that purpose. It doesn't look like Pvt Snuffy has poked holes in the floor pans to assist with draining while at the wash rack which is good. Enjoy and put it through the paces.
Thanks Matt. I had a huge smile on my face during that entire off-road segment and the conclusion at the quarry was magnificent. Thanks so much.
Matt, I have worked on many of the GM 6.2/6.5 variants back in the day they are a pain an the azz boat anchor. Even turned up they are balless. I would convert it to a spin on fuel filter if you are going to keep it. Also priming that stock filter disconnect the spade off the fuel shut off solenoid when you crank it over to prime it will keep the injector pump from running dry or starting the engine while priming. Those Stanodyne pumps can be a bitch to reprime when the are full of air. Those engines require the glow plugs to work all the time, even here in Florida hot as it is, and don't use cheapo glow plugs if you replace them { Champions are JUNK!!!} they tend to mushroom the tip of the plug when they crap out I have had to pull heads to get them out. If you are keeping it I would 4 door it and put the slant back hard top on it.
Power or lack there of is a relative thing. Under powered? Hardly, the thing will go just about anywhere off road and if it won’t, lack of engine power will not be the cause. The problem is we are accustomed to modern 4x4s that have plenty of highway power. Two different vehicles as those modern 4x4s won’t get to half the places the your hummer will. Look at the pre 80’s Land Rovers and Land Cruisers, slow, underpowered, unrefined, rough ride and noisy until you turn off the bitumen. Then they suddenly became strong, reliable, tough go anywhere vehicles that were heaps of fun. If you bought your hummer for highway cruising, you bought the wrong car. For getting around your area it’s probably perfect. Cheers Stuart 🇦🇺
i am in England, and have a Pajero, doesnt have much power but has a lot of torque... :)
Greatest quote about the humvee was about how after a ceartin speed the pedal doesn't increase the speed it just makes it louder
Those fasteners are called Rivnuts. They require a special tool to install, but go in easily. Besides the low visibility from inside the cab and the school bus turn radius, humvees are fun to drive. In good weather, pop the top and have a ball.
I ran those engines for years in several different trucks back in the late 80s and early 90s . The easiest way to get more power out of one is to advance the timing on the injection pump. There is a mark on the pump and one on the cast housing. Advance the pump to the with of a Nicole. You will be surprised by the extra power you will have and it never seemed to hurt anything. I drove them for years that way.
you can also set the injectors a bit high so it runs a little dry, reduce fuel consumption without hurting the power.
It’s great to see Meatball! I rewatched one of your old videos recently where you were kicking a giant ball around and he was chasing it, then I realized I hadn’t saw him in forever!
Matt, at 26:20 in the video I see the light switch is off. Make sure you leave the top lever in the first notch to the right or you will not have any brake lights! (You need to lift the bottom right lever to unlock the top lever.) Also, make sure the left liwer lever is in the off position when parked or it will kill your batteries. Or install a battery cutoff switch.
And the military uses non commercial components so you can't use them on normal personal vehicles.
Wait, so what kind of component can't Matt use?
@@Netherlands031 regular off-the-shelf stuff.
@@Netherlands031 Components you can easily find.
As you can see the top has seen better days lets see if we can scare up a replacement for it and Your Slow movement trying to get unstuck from the top was hilarious Matt 4:35 @Diesel Creek
Torsen diffs- you can see it free-wheeling when the one was in the air. Give it a bit of brake to help out- Torsen is torque-bias multiplying, if a wheel is in the air there is zero resistance, so it won't have anything to multiply against if that makes sense. A little brake will send power back over to the other wheel.
Loved the teaser at the end! Looks like things are finally happening with the shop! Can't wait to see more of that!
It may be gutless by todays standards. In the mid 80’s when they were introduced to the military they replaced the Jeep. In comparison these were monsters. Great video, brings me back to the first time I drove one. 👍
they replaced the jeep mostly because the military wanted a vehicle that could ride on the same transports as the tanks - it's the only reason it's so wide. For practical use the Jeep was more than adequate for the job and in forests and such far superior
one thing to remember on all gm diesels especially with 6.2,6.5 turbo detroits there built for fuel economy and because they were the cheapest thing the military could get both th cucv(squarebodys) and humvees you will need to add some straight pipe where the muffler fell off (also be very cautious of the pipes going to the airbox if there cracked you will hydrolock the engine cleetus mcfarland found that out the hard way (all your breathers go to the box to make sure there in good shape too)
I see everyone has covered the facts about the engine and its power, that is not needed, as that vehicle if driven correctly cannot be stuck, but just remember if traveling down a washboard road, there is a learning curve there.
As for the mounts that match up the the antennae mounts, those are indeed guards for the porcelain base of the whip antennas.
Those are in fact bullet proof units that can climb anything.
I remember when they first came out in the testing phase. The reps were saying give em hell, and my platoon leader and platoon Sargent were saying be careful and do not break them.
Thats all well and good until you get out in the woods and your buddy asks if your up for follow the leader.
Finally someone with common sense and actually rides offset to the trail grooves for the most to not dig yourself into it. I’ve seen so many ppl get stuck like this when they can just scoot over and ride the higher ground. Unless there’s so space on the sides of course lol.
Those brackets wrapped in bubble wrap are antenna mounts.
You could get the air intake snorkel and exhaust extension like what's on the USMC version HMMWV
Well, that was fun! A bit of a departure for the usual fare but quite enjoyable. Thanks for the time involved in setting it up. Glad to see you can accomplish many things and have fun as well! Video was very nicely done and easy to watch. Thanks again Matt!
Man, I've never commented your videos before. But let me tell you...this was bad to the bone, quality content. Andrew Camarata and your channel are by far 2 of my favorites! Keep up the hard work man, it's really paying off... Robert from Mississippi
You are a man of rare good taste.
He did a good job on this one for sure. I watch all of his stuff. I like Andrews channel as well.
Also representing MS. Currently in Rankin Co.
Don't forget This And That Garage. Half Ass Customs if you will
Get the -10 manual!!!! One very important thing to check from my Army National Guard days are the THREE ball joint castellated nuts on each wheel. Each has a cotter pin. Check each to insure there is a cotter pin. I found two during maintenance times that were missing! Losing that nut would not be good! CHECK and report bac Matt!
Between Baghdad and Ft. Hood downrange, we buried ours ALL the time. Hell I may have to get me one one of these days. Prices are still too stupid high for me at the moment. One thing we always had issues with was the half shafts and brakes. Keep the PMCS up on em. C Co 1-12 Cavalry, 1CD
These things are like Lego. You can make them into almost any other “model” with just pieces added or taken away.
The nutserts in the windshield frame always fall out and the channel bar that goes over the door is always loose haha. They are super easy to fix though. The model number of the truck will tell you wether it was a 2 door or 4 door model but all the extra pieces are the seat pans and seat backs. You would just have to get doors and take off the hell hole covers.
36:30 One thing I remember about riding jeep trails with my HUMMER is they are not wide enough.
38:30 with that open exhaust pipe backing up could plug the pipe. I don't know how the exhaust was run on the HUMVEEs but the civilian HUMMER had the exhaust loop up over the rear axle inside the left rear wheelwell which created a seal to keep water out of the exhaust system when running through deep water. Downside of that was the exhaust pipe radiated a lot of heat into the wheelwell and that heated up the tire. Was only a problem on long runs at high speeds though like turnpike driving which the HUMMER is not designed to run over 60 MPH for extended periods.
dunno about the US military versions, but the ones we have here in Denmark the exhaust just goes out to the side in front of the rear axle.
@@thesteelrodent1796 thats how the military ones are too
@@TylerDuysen I thought so but couldn't remember how they were configured. The HUMMER (civilian version which GM renamed the H1) and the HUMVEE are pretty much the same animal and go down the same assembly line up until the dash and wiring harness goes in. Then they start to diverge and go their separate ways. That's what I saw when we toured the AMG assembly plant years ago. At the time the H2 didn't even exist except for the prototype which they showed off at the event (first Hummer Homecoming) and the H2 assembly plant was still under construction in 2000.
The civilian H2's are just Yukons with ugly body work, the H3 was never touched by AM Generals, and is a glorified GMC Canyon.
@@CAPNMAC82 Yup, I know all that. I have no love for the H2 or H3, and GM ruined the H1. I drove a 95 HMC4 for 14 years and had loads of fun with it.
@12:56 those are indeed antenna holders. but they mount to the vehicle with the 3 bolts on the other side. the 4 bolts are for the antenna itself. so u have them facing the other way around. the "triangle" should be facig down.
Hi Matt
Try removing the oil dipstick as you are filling your funnel, you’ll find it’ll flow without air locking up the filler tube. Great vid, keep them coming, best wishes👍🏻🙂.
Great to see you having some deserved fun knowing all who watch would have loved that too. And then a little teaser right at the end for new shop. Well Done Matt.
Per The Book, to go 4-seater, you have to delete the stake bed sides and install another headache bar aft of them.
The vehicles were designed to go "flat" level with top of the windshield mount, so, everything comes loose and stows in the back.
Those seat recesses were notorious for holding all kinds of "contraband."
What kind of contraband lol.
@@tjnucnuc literally anything and everything you could fit in there.
Bii, lickeys and chewies, drinks, literally a bottomless pit of randomness lol
glad to see you actually having fun instead of always working
The Humvee is a beast, all come with the rear back rest when used in the 2 man mode, the green things are antenna holders. BE CAREFUL, the brakes stop the axle shafts and no the wheels. You can twist off the shaft in front by having the wheel spinning and slam on brakes.
Been a little while since I drove one, but I think the transfer case has H, HL and LL settings. The H is for most general use, but the HL and LL both lock the differential so you won't have opposing wheels spinning. As you said, probably one of the most off-road capable vehicles made.
Put it up against an old school British Land rover. That would be cool 😁
I'd reuse some of the old canvas to recover the seat with.,or try to order in replacement covers. Cb antenna holder's.& Communication antenna protector's for off the back of the humvee trucks.
When your loosing traction, put a little pressure on the brake pedal. You have torsion differentials. There like limited slip. To engage use a little brake pedal.
I recall reading about those years ago. Their not as good as lockers but much better than the average limited slip diffs.
The diffs are Gleason Torsens front and rear. They are TORque SENsing. Yes, light brake pedal pressure works well to carry airborne tires.
Matt’s smile says it all. We look forward to the shop going us and your next trip to the auction.
I was in the US Army for 16 years and I believe your frustration with some of the nuisance parts and location of the HMMWV. They do great off road when it is built light, but they drive like a slug if it is up armored. It is never a pleasant drive on the highway with its annoying steering play, stiff suspension and road noise but as an off road vehicle, they are magnificent! You can have the engine tuned and add a better turbo to have more throttle response and a bottom skid plate to protect its belly and that would be a great off road vehicle. If I had the space, I would definitely buy one...
We drove those things into the dirt during the Gulf War. They worked fairly well at first, but after months driiving around in the desert with temps as high as 130 degrees outside, they had all the power of a go-cart at the end of our tour.
I'd be checking out the charging system on it then for sure Matt. If the voltage meter is jumping around like that. It's A good sign of possibly bad voltage regulator in either the alternator.,or the generator one has bad brushes inside of it.& A bad voltage regulator inside of it to.
Yes, those are the standard antenna mounts. And the military loves rivnuts, even though they always strip out the aluminum base.
That was GREAT!!! I like the shot of you going 3 wheeling for just a moment. Nice to see you having some fun Matt. You earned it. As always, thanks for bringing us along.
I have always wanted an H1. I took 1 home from work one night. I took it out on the farm to get some offroad pictures. I ran into mud on the drive to the spot for pictures. I could feel it sinking in the mud but it just kept on moving. It was amazing. I am pretty sure my lifted and tired pickup would not have gone thru that.
I’ve had a couple of those from GovPlanet. Lots of fun but almost no creature comforts. At least the heaters really put out some hot air. Be ready for a noisy, drafty ride. At least you got hard doors. It’s probably been mentioned but look up a fairly rare spontaneous combustion issue. I always disconnected the batteries when it was in the barn. Enjoy all the thumbs up you’ll get driving it. Btw gentle pressure on the brakes will lock your diffs if you get too off camber.
I’ve always dreamed of owning a hummer just like yours!! You got one hell of a deal and a nice machine that will last forever, glad to see meatball and rosco, I’d turn it into a 4 seater and take the family off-roading, great video Matt you are living the dream for me 😋
Hey Matt, Another one of the more common problems is the alternator bracket bolts on the left front of the engine. If not torqued properly with locktite, they will loosen, then break off in the head.
Love seeing the materials being brought in at the end!! Can't wait to see THAT build!
Can´t remember, di he mention having the building postponed somewhere to august/september in some way earlier video or was that just wishful thinking?
@@alexanderkupke920 I think when he first told us he was building it he said he was hoping to have it dried in by winter.
@@wakeupamerica2971 Yeah, but I think he also told us a little later that he was postponing it as he was offered a very close date and he had no way to get the pad done in time.
Ah, however, I bet we will see soon.
In extreme conditions, apply some brakes while applying throttle to get the Torsen differentials to bias, transferring power to the wheel with more traction. It will slip up if traction imbalance is too much, but they differentiate very well. Enjoy your humvee!
40:37 Just like in the jungles of Saigon, the (jack@55) commander stops shorts in hard block mode, exits, then waves the troop carrier forward.
LOL
All in fun, couldn't resist.
That model Humvee wasn't meant to have hard doors with a canvas top. They have canvas doors that you can tweak to seal a little better, but other than that, take a rainsuit
Matt especially considering what you paid for the Humvee I would keep it. Looks like a lot of fun. I can't get over how much the PA scenery resembles my home state of Kentucky
Meatball was like look im helping dad 😂 I have an Aussie mix that rides on tractor when I mow lawn know the feeling
37:02 if you have a wheel that’s not spinning, you can tap your breaks to activate the lockers
Antenna mounting brackets you found under back seat. Gold bars have been found in fuel tanks of desert storm equipment that came back to domestic soil.