6.2L Diesel Engine Rebuild - Part 1: Top End Teardown
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- Опубліковано 12 гру 2020
- This is part one of a series of videos following a complete tear-down and rebuild of a 1986 GM 6.2 liter diesel engine that came from a 1986 M1008 CUCV. (For search engines: M1009, M1010, M1028, M1031)
In Part 1 we take the shortest route possible to quickly remove the entire top end of the GM 6.2 liter diesel. We will remove the CDR Valve, Vacuum Pump, Coolant Crossover/Thermostat Housing, Water Pump Assembly, Fuel Pump Assembly, Intake Manifold, Exhaust Manifold, Rocker Assemblies, Push Rods, Heads and Dipstick. We'll also inspect and take a look at that curious water situation.
One of my original songs, New Tattoo, which I have managed through TuneCore got a copyright claim against it... From TuneCore! LOL! I basically put in a copyright claim on myself! So I had to replace that original song in this video with one from UA-cam's sound bank. If you want to hear my original, New Tattoo, check it out on iTunes (and wherever else music is sold!) itunes.apple.com/album/id15566... - Спорт
I love a slow rock and roll ballad while taking apart an engine
LOL! Right? Here you go! Perfect engine-building rock ballad! ua-cam.com/video/km69XzxCuUs/v-deo.html
The 6.2L Diesel, beloved by survivalist fans around the world for its uncanny ability to withstand an EMP from a black helicopter & not even hiccup. no stinkin' electronics necessary or needed! Like your videos, well done.
Thank you for watching and commenting. Gotta love gear and chain driven injection!
All the people with 6.2s out there gotta appreciate this video
Great video, great music. And not so mutch talk, just do...💪🏻💪🏻💪🏻
This guy is a true American Treasure, I've learned a ton about my M1009 engine!
Ha. I don't know about Treasure, but glad you got something from the video. Thanks for viewing and for your comment.
Great video and even better shirt! That’s for the support! (I’m one of the owners of nomenclature clothing) keep up the great content!
Thanks! And thanks to the latest project truck I just picked up I'll be needing to order a Nomenclature T for the 1028 videos soon too.
Rocknus you rock !....Thank you so much for your UA-cam stuff.
This is awesome! Finally a channel showing some work on a cucv. I own the M1028 version. Keep the videos coming 👍👍👍
Thanks for taking the time to watch and comment, Diesel. Enjoy that 1028! To me, they're fun to drive AND work on.
@@RocknusUrbanCamouflage yes they are. I’m replacing the right side head on mine it’s been sitting a while but should be back in action in a couple of weeks.
@@dieselwrench3621 Good luck, Diesel. Hope you're rollin' soon.
Nice clean engine. Take time to address all the issues. Balancer is a big problem. Waiting to see more
Thanks! This engine is definitely a good candidate for this rebuild. All the bearings look great. As you said, nothing appears to be worn unevenly or too much. So far a bad head gasket appears to be the worst of it. We'll find out in the next video when I start taking tolerance measurements and whatnot. Thanks again.
Thanks for the great video mate, i liked and subscribed!
Glad the motor was able to turn over! I got an 86 m1009 with 83k and it runs awesome! No oil consumption between oil changes. PO took really good care of it.
That's great! Sounds like the current owner is taking the same care and that gem will live on for a long time. Enjoy! Thanks for watching!
Great videos man. Doing everything right 👍
Thanks for saying so and for watching.
Great video, I'm looking forward to part two. I have a 1988 G30 cutaway airforce truck with 34K miles on her.
Thank you. Congrats on the truck. Part 2 should be going up next week if all goes well. Video being cut now.
Awesome video. I have this engine with like 70,000 miles, but I’m just running it.
Would love to see part 2! Learned a lot of solid information from part 1!
Thank you! I'm working on part 2 in among the other videos I've been tossing up. Not gonna lie... It's been frigid here and the garage has been less than comfortable so I've been doing to comfy indoor videos... Slackin'! It's coming though! Thanks for watching and commenting!
Hi sckiller. Part 2 is up!
Thank you. Your content is super helpful for my truck! Thanks again!
@@sckiller My pleasure. I really hope it helps people out. More on the way!
Greatly needed info Thanks SUBSCRIBED
Thank you, Ronbo Nick. Greatly needed suscribers!
Great video
Thank you, MeanwhileInSweden. I appreciate the view and comment.
Very nice!
Thank you, Jordan.
UA-cam reccomendations sent me to a good place
Thanks for saying so, Owen. Thanks for watching.
sent you here,,,yup,6.2 need all the help they can get..
Need part 2 haha! Good work Sir. Thank you for documenting this.
Part 2 is in the works! Thanks for checking it out.
@@RocknusUrbanCamouflage Literally attempting the same thing (first time ever for me) over the next two weeks! Hopefully by the time I catch up to Pt-1, you'll have Pt-2 out! I'm doing the ARP head studs w/ Fel Pro gaskets in prep for adding a 6.5 TD right side exhaust manifold, and a GM-5 or 8 turbo. Also adding a FlowKooler high flow water pump.
@@jonsmythe7702 Sounds like you did a lot of research and have a clear picture of what you want. Maybe you can document your build for everyone to see? Sounds like a good one.
@@RocknusUrbanCamouflage pheeew, can you tell my wife that?...my CUCV is my never ending project! I'll consider it...my A.D.D. might take over with shooting/editing and I need to stay focused on the work vs. the documentation. Looking forward to your next video!
Part 2 is up!
Head flex, gotta just break em all then send em out in sequence
Hi... Loved your video, I just bought a 84 GMC 4x4 6.2 diesel. My first Diesel, I will be tearing up to overhaul it. Am thinking of Turboing it as well, so what ever you do here, I will be picking up on and applying to mine.
Thank you for watching and congrats on the new wheels (and 6.2!!) These are great trucks and engines (even as loud and slow as they are! LOL!).
Engine is pretty good as issued. Replace the head bolts with studs. The timing chain and the injection pump gears assembly might create some timing confussion. Hanes diesel book did not mention it but you must match the chain timing marks, (no brainer there) then turn the crank over 180 degrees to match the marks on the injection pump gears. The book skipped that step. Overall, the weakest thing on the K5 vehicle is the 700r4 transmission and the TV cable adjustment that will burn it out quick.
@@notyou6950 ok... Yes I've been doing my home work about installing head studs, replacing the Harmonic balancer as a must. But hadn't heard of the injection pump gears!
@@LuisJimenez-jv3xr I found out about this the hard way back in the mid '90s. Even went to a Chevy dealer repair shop to ask the technician about it, but they did not have any answers. Them boys were only working on gasoline motors. Diesel engine was a foreign thing to them. I figured it out myself after a couple of days. My wife took over the best vehicle in the house at that time and drove it like she stole it! I had a piston skirt crack in one piston some time later. It rung like a bell when it idled. I remember when it happened to me. I cought it just in time before the wrist pin separated from the rest of the piston. Had to do head gasket on half the motor to get it replaced. The piston replacement can be ordered in different sizes from A to F. Same dealership as before, had no clue what I wanted when I told them my size I needed.
dont turbo it..there not built for turbo..you need a 2001 IH,6.5 turbo. 5k..all the gm 6.5 td,s are rubbish..6.2 good for paper weights..there a petrol engine converted to diesel..not a good thing..look into the bmw, 57m diesel.cheap relable sht loads of power,commonconversion..
You would be a great instructor if not one already man thanks
Thanks, John. I've been a certified instructor of various skills my whole life, (currently an NRA firearms instructor) and I've been an automotive mechanic, but never an automotive instructor. Go figure! I guess these video scratch that itch. Thanks for watching.
Hey man great vid, I just picked up an old 6.5 motor and want to rebuild it. How much should I expect to spend on the refresh? Thanks for your time!
Starting in the next video I will be keeping track of what the rebuild costs. It all depends on what we find when inspecting parts. I'll do my best to break it down and separate what every engine needs and what just my engine needs. Thanks for watching.
@RocknusUrbanCamouflage. Do they may turbo pistons for these? I wouldn’t mind putting one of these in a suburban
Where can I find the music track to this video?
Great vid. Where is this j code you speak of. I just looked at a complete 6.2 with the trans sm465 attached. Came out of a one ton. It has 660 as the last 3 of the casting number.
J/C-code engines are about the things attached to the block, not the block itself. A J-code engine will have a different intake, the heads will have differences, there are no emissions components on the J-code, etc. The IP on a j-code is generally a higher output pump than the C-code engine gets. Those c-code engines were more for the 3/4 and under vehicles while the J-code was for the heavier ones, military, etc. Thanks for watching, TJS.
So that's where the ls design came from
Can the resistor be bypassed? If so what's the down side?
LOVE THESE ENGs NO MATTER How much GUTLESS THEY Are. Still will Still out pull and out fuel mileage a 454!!! IDGAF What the haters say It's almost a 40 YEAR OLD IDI Diesel can gets close to 30 mpg! Unheard of!!!... Also, i do really like your way of Showing the Assemblies in the video, along with how you take each part off almost completely in-tact and placing the bolts back where they belong! I did this on my 1982 red block 6.2L only took 4 yrs to disassemble/Re-assemble mostly NOS parts & Used I Reconditioned As I am Completely NOS restoring my 1982 Chevrolet Silverado K10 pickup back too it's "Former" glory of being stock. The 1982 first-year 6.2 trucks are becoming VERY Far and few... Anyway great work! Only complaint for future videos the Dissasemble subtitles could be maybe a different color font. Cheers from Michigan!
Naysayers don't bother me either. This is a great motor that is very hard to kill. Great in all climates. Dependable. Thanks for watching!
Great video, I have a 1986 Chev diesel, single cab, dually with metal stake bed with a lift gate, where would I find out what this truck is worth, it use to be a city vehicle but it is a beast, not sure of the rear end gears. I was surprised at the value that was given to me on NADA, any help anyone can provide would be great, thank you.
Oh wow, man. Sounds cool! I have no clue what it's worth, but I know where you can find folks that do! Just join any of the Squarebody Facebook groups. Lots of knowledge there. Thanks for watching.
I have an 82" 6.2. Any little tricks to increase performance?
A turbo is pretty much the big thing everyone does, engine-wise. You can also gear the truck differently. Personally, I don't do anything to them. They are what they are. Thanks for checking it out. Part 2 is almost done and for sure when we start rebuilding we'll try to squeak a little more out of it.
Can you tell me where I can find new exhaust manifolds for my 6.2 engine. The mechanics in my town can’t find one anywhere and I can’t also
You should try Hillbilly Wizard out of PA. Also, join the FB group cucvsales and look for the admin. He sells parts out of MA. I get lots of stuff from him. No junk.
When will the put back video be out
something about the patina on that motor tells me it has more miles on it then that!
Could it be the 35+ years the motor spent on the planet thus far? I got this motor from one of, if not THE most respected CUCV guy in MA. I am confident in the mileage. Thanks for watching and commenting.
Nice work. I bought an 86 but can't find exhaust. Where do you get your parts?
I have a lot of parts already, but when I need something I don't have I get it from Mike Morin in Massachusetts. I live close and can pick up but he'll also ship many items and I'm sure he'd shi manifolds. Here's a link to his FB page. He's in most of the CUCV groups... facebook.com/allamerican.woodworkingcarpentry
Hey brother so I just got my first 6.2 diesel its in a 83 k5. I love the thing but it's got a bad oil leak I don't know where it's coming from. It has the banks turbo kit on it. Any information on where the leaks could be would be great
If you're asking where your oil leak is coming from, I will assume you are losing oil but see no obvious leaks? Got smoke? Could be burning it off. Bad head gasket... Worn rings... Would need a lot more info to be of any help here. Thanks for watching and I hope you figure it out!
@@RocknusUrbanCamouflage hey brother so its definitely visible. When ever I drive it and then stop the whole underneath is covered in oil so I cleaned it all up. And got to looking seems like it's coming from the passenger side of the motor. I at first thought valve cover but I checked them and the last two injectors are bone dry. I also forgot to mention it has the banks turbo kit on it. I Definitely need help haha this is my first diesel and I can't figure where it's coming from
@@RocknusUrbanCamouflage if you have any social media I can send pictures. And maybe you could help me figure it out 😁👍🏽
@@jjsilva6670 Take a look at your oil drain gasket. (bottom of turbo)
@@RocknusUrbanCamouflage hmmm I will check that for sure I didn't even know it had one 😂. The guy I bought it from said he replaced the oil pan and revealed it. Also would it leak onto the starter aswell because it's in that vicinity
How much play should there be in the lift pump push rod?
Anyone?
None, unless you like to hear tapping under your hood.
Hi can you tell me what transmission does it have
It's got a TH400 in it, Roger. Thanks for watching.
When don’t with build can you let’s your views know the cost of rebuilding the engine and cost of speciality tools you need. I would like to rebuild my engine but not sure about what it would cost me. Thanks
Absolutely. When we assemble the engine we will keep track of cost all the way. Thanks for watching and your question.
Is there a put back video yet?
Did you have a difficult time getting parts for the 6.2, my engine has been at the machine shop for almost 6 months
So far, no... I have found the parts that I need, but there's more to do and I may discover I need some hard-to-find part. What is your shop struggling to find?
@@RocknusUrbanCamouflage things should be picking up now with the rebuild. I bought every part for that engine, besides a fuel injection pump. I'm going with a 4l80e trans therefore eliminating the trans vacuum modulator pump that runs off the oil pump. As far a the tank i replaced the S/U and fuel lines.
How come my 6.2 will start fine then not while I'm at home depot for an hour buying shit I don't need. Fire, fuel, air yes. Seems like glow plug light doesn't work in spratic moments.
I have another video that might help solve your issue if you suspect it may be with the glow plugs. Check this out. Starts at about 5 minutes...
ua-cam.com/video/xMEEXzihAq0/v-deo.html
So do think my random fuse blowing on the gauges Fuze slot ties in with this issue or not? I have an 86 g30 van with a '91 jcode. I know I have bad ground on the gauges but for the life of le why would it start fine then not later on the 2nd startup. Really weird. So can I test that glow plug solenoid with a meter and look for a dead or just replace it. Thanks! Your super thorough.
@@Mrsmith1082 You can just listen to the relay to see if it is triggering. Have someone turn on the key while you listen for the click. If it does not click, you can ground your glow plug relay trigger as described in the video. If relay clicks, it's working. Really tough to diagnose your issue without being there. Your gauge issue though... Look under your hood... Under the brake booster there are some wires. One in particular is pink with a black stripe. Check that wire for shorts. The shift linkage sometimes wears that wire's insulation out.
Hi i was watching your video and saw you had mass plates how can i obtain an old chevy truck?
I actually drove to PA for one of these (10 hours each way) and to NY for another of these (7 hours each way). If you want to find one in MA, they will either be very rusty, or you can get one that was brought here from the south. Look on Facebook for Mike Morin out of Westminster, MA. He buys from down south and resells here in MA. He's in many of the CUCV FB groups. Hope that helps.
@@RocknusUrbanCamouflage thank you for the rapid response I'm from methuen, cool videos.
@@charlesflaco7976 Ah yes! Mingya valley! LOL! I'm your neighbor.
Hey, check out govplanet.com. You can get a GOOD CUCV from there for relatively small dollars and have enough left over to just have it shipped to your house.
What's the torque specs for the crankshaft screw for the harmonic balancer?
200lb ft.
@@RocknusUrbanCamouflage didn't have to use the installation tool I bought on Amazon, even though it wasn't the right tool, the harmonic balancer slid right on without any itch. I just lubricated the metal parts with gear oil. The torque wrench I have says inch pound so I'll have to just tighten the screw as is.
What year 6.2 is that and do you have any good heads for an 82 red block
That's an '86 engine and I do not currently have any spare heads. They're tough to find without cracks.
Still looking for a head ?
Don't know what a red block is tho?
Always here the term m1008 m1009 and 1028, could you explain them, I have an 84 cucv but what it is in terms of one of those categories, I have absolutely no idea.
Hi Shawn,
The M1008 is the base model 5/4-ton pickup truck based on the K30. The M1009 is the K5 Blazer style 3/4-ton version. The M1010 is the ambulance version of the pickup truck, with a pass-through door going from cab to box (and other various modifications that frankly make this particular model its "own animal). The M1028 is a beefed-up M1008 5/4-ton pick-up, almost identical to the M1008 except with more leaf springs to handle more cargo weight as well as some other communication additions and light modifications. There's also the M1031 which is a chassis-cab model designed to be fitted with various specialized bodies, most commonly the shop/maintenance body. Hope this helps. Which version do you have? Thanks for watching and commenting.
@@RocknusUrbanCamouflage mine is by your definition is either a m1008 or m1028, I know its military because even though the previous owner changed the color, army green is seen some places, each wheel has 8 lugs. I'm not near it now to count the leaf springs.
@@shawnlawrence4840 I have an M1008 and an M1028. If it helps, the M1008 has 9 leaf springs on each back wheel and the M1028 has 10 leaf springs per rear wheel. They both have 3 on each front wheel.
@@RocknusUrbanCamouflage thanks for the info, I will check mines shortly. I love these trucks, mines a fixer up so I'm learning about it, I'm about to enroll with penn foster to become a diesel mechanic because of this truck, great trucks
@@shawnlawrence4840 Absolutely a GREAT truck to learn about diesels on. Very simple layout with all wires easily accessible and plain to see/follow. If you run into issues and I can help, let me know. Good luck, Shawn!
What's the psi for the fuel pump?
Hi Shawn. 5-8 PSI
I want a gmc dually with a 6.2 but there so under powered so I’m looking at videos of rebuilding them because I’m trying to save
Good luck. I hope you find that dream truck. I hear you about the 6.2 power. This is why I appreciate the gearing/axle set of the CUCV... They aren't built for speed and they certainly don't pack a stampede of horses, but I find they can pull/push just about anything and they get surprisingly good mileage. They are great crawlers.
If you know what you want your truck to be predominantly used for you can gear it up right, turbo it, etc. and I'm sure you'll love it. Thanks for watching!
@@RocknusUrbanCamouflage yes
🖐💥👍
Hi User. Thanks for the view and for taking a moment to drop some emojis in support.
So those 6.2 don't have timing chain?
Hi Anadie. There is a timing chain behind those gears you see. All of that will be shown in part 2 of this video.
Timing chain set from the crankshaft to the camshaft, then a gear drive set from the camshaft to the injection pump.
Hey check your Facebook message requests. Also, are these 6.2L engines known to have any common issues? Have you seen or heard of broken pistons in these engines?
These engines themselves are pretty decent. I've seen an engine get hydrolocked after a day in the deep water and break pistons, valves, push rods, etc. but it's not a normal occurrence from normal operation. Common issues on these are glow plug issues, starter issues (usually relay), IP issues, etc... Mostly easy-to-fix external stuff.
Please message me at facebook.com/revjohnnytyler
26k and your gonna rebuild it? Serious question, why? Not trolling.
HI Chris. I really did it for no other reason but to make a video about it. I had thoughts of maybe putting it into my M1008 to swap out one that had 93K on it, but I sold that truck and this became a strictly video project again. I never personally heard this motor run and mileage means nothing to these as they sat idling for much of their service life.
These Diesel engines are exciting to learn about the 6.2 gets put down because of lack of power but my 85 M-1028 has the gears to help it but I don't want to run it faster than 55mph
They definitely aren't built for speed! I use one of mine as a plow. This thing will pull or push anything! It's all about gearing.
55 mph,id buy a unimog. only good gm diesel,was built by IH,after 2000.
24:35, flat top pistons,,not diesel. diesel are bowl in piston..whats the dia of the exhaust,1",,?.should be 2". like duramax..6.6 the 6.5 gm is same as 6.2, 1"..sad engine..
Hi Phantom, This is most certainly a GM 6.2L J-code diesel and those are most certainly stock diesel pistons. The exhaust for this is 2-1/2 from manifold to muffler and then 2-1/4 from there. My engines are happy! Thank you for watching. Happy to discuss.
Which state are you in?
My business is out of Haverhill, MA.
www.rocknus.com
@@RocknusUrbanCamouflage should the fleet side at the tailgate be welded to the bed?
@@shawnlawrence4840 Unless you're talking about some other weld that someone put on... YES! Fleetsides are welded back by the tailgate to set the gaps for the tailgate and keep them from moving in.
@@RocknusUrbanCamouflage is it safe to say the 5/4 ton is the same as k30?
@@shawnlawrence4840 A K30 is 1 and 1/4 ton so yes, we call it a 5/4 ton.
It looks like 124k miles.
The guy I got it from is well known in MA for his CUCV parts. I believe this engine was beat on and not maintained properly (before he got it), but I believe the claimed mileage to be accurate.
Sounds like you got this from Mike. Lol
@@sckiller I cannot confirm nor deny... I can only put a thumbs up on your comment! ;)
P
GO PATRIOTS!!
Gm using metric and English bolts on the same vehicle was annoying as hell. If they weren't such asses, they'd make everything 8, 13,16, & 19 mm. Then it wouldn't matter.
vaccum pump is where the dissy went,,the heads are 350 chev/buik. not a diesel..there a gm stop gap,as they were too up themselves to go to cummins/cat/IH,or get a real detroit diesel.only one id buy would be the 2000 IH 6.5 td re engineered one,as gm should of done...cheap asses..
Actually, the 6.2 was not built from any other motor. The 6.2 was an original. Thanks for watching, especially since you're apparently not a fan of this particular motor.