@@I_Do_Cars Great, I had a few people comment to watch your video and that is what I'm currently doing. A reacts video could be good for both channels. Great video by the way.
I have got 2 turbo diesel straight 6 BMWs, one is a 2002 (m57) the other is a 2015 (n57), the 2002 I've had for 15 years and never had issues with the power plant, the 2015 I've had for 2 years so far without issue, I've maintained a few petrol 6 cylinder BMW (2000-2004) for family and friends and the main issues they had was pcv valves and pipes cracking and blocking an on the newer ones the cooling system had some issues, apart from that they've been reliable, newer ones have had issues with injectors, timing chains, throttle bodies, swirl flaps, egr, dpf, auxiliary water pumps and ECUs, it's as if after 2005 and onwards reliability had deteriorated, I'm sticking to buying the 6 cylinder turbo diesels till they stop making them, but their other engine ranges are just getting weak.
Been subbed for about 6 months now. After sitting behind diesel engines for over 20 years its nice to see the insides of one. I want to tell you some of the things that I like about your content. 1) Your sense of humor. "Oh this part looks perfect....Yeets it across the room) 2) NO MUSIC Who needs it? music interferes with the narrative. 3) Even the sound of tools is fast forwarded, Very cool. 4) Things break, fall, splash... Included in the narrative. Bonus point for realism. 5) A variety of engines most of us would never see. Keep up the good work.
If that whole integral valve cover harness/injector thing seems familiar, that’s because the injectors are indeed HEUI units. Same as the T444E. As far as I remember the HEUI injector was a CAT design, which they sold or leased (I can’t remember) to IH/Navistar which was then put into their engines which eventually included the 7.3 Powerstroke. In fact-those injectors even have the same electronic connector as seen on the Navistar motors. The connector that goes to the brown plastic box looking thing is a solenoid with an electromagnet inside which, through its own complex system involving cups, pistons, valves, etc. provides very high injection psi. very advanced for its day. And that burnt injector with the jacked up O-ring probably has a bad injector cup. Basically the mating surface. Once that goes, it starts eating the O-rings.
~6-7 liter motors usually don't have easily replaceable sleeves due to the length of the motor. Usually requires removal, complete teardown, and a machine shop to press repair sleeves in.
According to the interwebs, the sleeves are like $30 - 40 each. Did Eric say that block had 300k? If so, that scratching may not be out of line. It will be interesting to see what the rings look like.
Either cylinder 4 had a well used replacement injector or a bad injector cup, looks like combustion gasses were getting out between the injector and the cup torching the seal. I'm going to guess that the wear in the bores is from excessive idle time followed by brisk acceleration, used to see it a fair bit in bus engines rebuilt by the company I drove for. If you intend to do more teardowns of larger engines it might be worth investing in a 1" drive socket set, head bolts on bigger stuff than this can be torqued to 400+ ft'lbs.
Torque spec is 300ft pounds plus another 90 degrees after that. On a digital wrench it's just under 600 ft lbs of torque per bolt. Wet sleeved motor to fix the bores just pull the sleeve out pop in the replacement one along with the piston and rod.
Since you're familiar with these engines, is the cylinder scoring at 300K miles to be expected, or surprising? And if unusual, what part of the oiling system is the culprit?
Eric I have a farm boy background which means I did really brutal labor when I was a teen. Now I'm a much older fellow (and not doing farm work 🙂 ) Take some advice...use every tool that makes sense to eliminate any possible damage to your spine. A crushed spinal disk will cause you the most horrible agony until it can be repaired surgically. Use cheater bars, buy better tools, invest in tough tools, anything to save your back, muscles and other bones and joints. I'm real glad you used the forklift to remove the cylinder head. Great video and I hope your back is recovered.
That injector with melted o-ring is cause the crush washer/seal was compromised either not tighten correctly or reused allowed compression to get past it
That was my thought too. Compression leaking past essentially overheating the fuel o rings. Well, fuel or oil I don’t know which set one is on the bottom. Probably fuel.
Cool engine teardown! I know there are higher torqued items, but the highest one I've run across was on a B-52 landing gear trunnion cap bolt. We had a special torque wrench that was made of extensions of two foot or so increments that could connect up to almost twelve feet long. The wrench went 2000 lbft. I don't remember the exact torque, but it used most of that wrench
Eric.... I always hit the thumbs up button even before I watch the video because I know it's going to be enjoyable, entertaining, and informative. I always look forward to the next tear down. I'm glad I found your your channel. One of my favorites. Take care. Cheers
I've worked on more of these than I care to count. Generally pretty reliable engines with a few common problems, usually with the injectors and high pressure oil pumps
The top end of this thing reminds me a little of the late 90s International DT466, especially with the HEUIs and valve bridges. The issue with the darkened injector is that the copper washer around the base of the injector nozzle wasn’t sealing to the head. Common if the injector was replaced and not properly tightened down or the bore it sits in is dirty. It’ll leak compression past the copper washer and burn the o-rings on the injector. The 7.3 and DT466 use very similar injectors and had the same issue. When I first started working on diesels (coming from gas engines), I complained about how tight all the bolts were and how heavy everything was. What I realized is that I was using basically tools for cars on big trucks. Trucks, and the big diesels inside them, require different tools. If you use the right tools (including lifting tools) then its not an issue.
Love that you got your hands on something more industrial. You should try and get your hands on something a little bigger. Like a 20+ liter engine that was hooked up to a genset. Kohler would be a good place to start. Currently the biggest engine I work with is 53 liters(16 cyl. 4 turbo). Thanks for all you do to make Saturday nights awesome!
@Christopher Weise yeah, a 20-odd liter is a little bigger. Never said anything about Eric getting a v16, he doesn't have the equipment to handle anything that big
@@lllateralus that’s the key to it. It would be neat to see him, talking him through taking it down. It’s always good to see one two fellow UA-camrs get together, although different fields of expertise, but doing the same thing. And they do it to bring viewership together.
@@robertwest3093 yeah, I do like his videos there to the point in you may have a few F bombs hit the ground every now and then but it’s nothing but pure iron.
When I sold my truck it had 1,128,000 miles on it & we’d never been inside it ran the overheads annually. I wouldn’t have been afraid of running it another 5-7 100K. I saw some fellows doing an in frame overhaul on a Detroit engine in the parking lot of the little America truck stop in WYOMING aU Haul trailer was their shop. It was going to be a good engine when they got finished.
Not to brag or anything but I kinda called it in the comments that he should tear down a cat (I said he should do a c7 but it’s pretty much the same) two videos ago when he tore down those two ls engines
Surprised to see one condemned over something as "minor" as fueling issues and cylinder damage. Haven't watched far enough yet to see the carnage though. These engines are very serviceable and haven't been manufactured for a while, so owners generally try to keep them alive even going as far as a deep rebuild.
Thats what I was thinkin... But... great choice of engines! After forty years of truckin, I can say that's one of the first ones I piloted. Really enjoyed this one. Anxiously awaiting part 2!
I actually FELT that @ 20:30😢 Literally cracked/bruised the holy he'll out of my ribs and sternum doing something like this... Recovering from that fiasco was ine of the worst, most painful months of my life.
Hey diesel mechanic here, the condition of the number 4 injector I suspect is due to a burnt injector cup. Take a gander in the injector bore and see if you find anything unusual, be nice to see that in the next video too.
Just wait till you get to the main cap bolts! When that engine is in a chassis, especially an rv, those fuel lines and hpop lines are a huge pita. Good engine though. Nice work so far!
The mystery nut was sitting on top of the intake manifold while you were unbolting it. It fell into the block when you removed the manifold. But I'm sure you saw t hat during editing.
I've done some top-end work on a few of these at work, but never had the joy to tear one fully down. We've had to replace a few HEUI pumps for engines that won't start when hot. I suspect frequent oil changes would have been cheaper! Mostly we work on Detroit DD13 to DD16 engines, though.
Back in my auto parts sales day I visited a shop swapping a 3126. Every pushrod was bent and two inspection windows in the block. It was in a paving crew dump truck and they ran out of fuel. The Cracker Jack crew started spraying ether in the air box outside the hood trying to start it. Halfway through the second can the engine finally caught it and sucked it all in overrevving the engine.
Nice to see an easy to work on engine. It's almost like the engineers actually talked to a mechanic or two before designing the thing. When I was working on airplanes (light planes) the worst thing I could call someone was a Cessna Engineer because of the way they shoehorned almost everything to be impossible to work on in the engine compartment and landing gear area of a retract. Especially the push pull Cessna.
Engineers have to design everything within a constraint. On a plane, it has to be crammed in there to satisfy the design requirement of fitting inside an airplane. The plane working as an airplane is more important than the plane being easy to maintain
I can only speak for Cessna 172's and 152's, but I have a personal joke about Piper... 1. The ones we have at my jobe were designed/built in the 60's/early 70's. 2. Their Company name is called Piper. 3. Most of their planes they build/built have Native American themed names. WHAT DO YOU THINK THE ENGINEERS WERE SMOKING?! Agreed about the Sky Disaster though. If I EVER have to see a Skymaster Control Cable again, it will be far too soon.
@@beverlychmelik5504 there are retractable gear versions of 182, 177, 172, and of course the twin engine Super Skymaster (337) which all are high Wing Cessna designs. I think his complaint was mainly aimed at the Super Skymaster.
The only thing worse would be a Hawker. I hate the 800s and 900s. Such convulated crap, and that was just the Avionics. I asked our maintenance guys how the gear was and the look they have me was murderous.
No! There is a fuel pressure regulator on the back of the head that keeps the fuel pressure at 85-100 psi. The injector can produce 5000 psi but only when the engine is running.
Wow - that thing has 1/2 the weight of a small car. BTW if those are stretch head bolts, you have to keep turning to the degree specs. after the 300 lbs.!
@@williambasinger5859 Excuse me, but you are in error. I looked it up. 320 is the 2nd pass, after which the bolt is rotated an ADDITIONAL 1/4 turn! It is, indeed, a stretch bolt.
Really cool watching this! I work as a block machinist for the rebuild center at a CAT dealership! Love your channel but this is absolutely cool for me!
A great adventure , and outside your comfort zone no less.. You be extra careful with that, count your fingers every time you work on it. Tank Crewmen everywhere watch with knowing smiles.
The only CAT engine I ever saw that broke a rod was when the operator down shifted and over reved. The red line was 2100 and the tachagraph showed over 5000! we had a extra inspecton window in the block.
Tighter than the Mercedes head bolts, but were the head bolts tighter than the Land Cruiser crank bolt? Glad it's mostly looking good so far. Can't wait to see Part II.
HAH ! I KNEW IT ! You gave yourself out when you said it was going to be something completely out of the norm for this channel. I'm totally onboard with that, I love diesels. Honestly you could bring in a Weed Wacker for repair or disassemble and I still would watch.
Good engine, worked on a lot of them. Common in GM and Freightliner medium duty trucks, seen a few in Ford/Sterlings. Larger version of the earlier 3116 with HEUI injectors. Nice to see you tear down a commercial diesel. You would probably enjoy an Isuzu 4HK1 out of an NPR/NQR.
The 3116 HEUI was only made for two years it has an engine prefix of 1WM. It was a bullet proof engine and we never saw them come into the dealership for repairs. The 3116 is a 6.9 liter engine with only two valves. The 3126 which replaced it was a 7.2 liter engine, and had three valves, two exhaust and one intake. The 3126 became the C7. Fun fact about the 3116 engine. It was designed and developed with GM and was only found in GM trucks. Caterpillar came out with the 3126 so it could sell the engine to any OEM that wanted one.
@@williambasinger5859 I like how you broke it down here. I currently run 2 C7 2006 WAX engines in my 2 freightliner box trucks, one has #3 hole getting some scuffs causing some blowby. I soaked that cylinder with ATF and acetone overnight to try to free up the rings, vacuumed up the mix, and so far it's not getting any worse after 4 months at around 400 miles a day
@@mattcat231 the WAX was my least liked C7 it had a lot of injector and heui pump failures. When either one fails you will get a lot of metal contamination in the heui oil gallery in the head that is a pain to get clean. Change the oil like religion and use only cat filters is the only recommendation I have to give you to avoid these failures.
Cat IN the box, we had a Cay 3516 in Antarctica that was in a conex container, it was called Cat In The Box. It's now also out and installed in the gen plant.
3406E and C15 engine are the same thing. Caterpillar just changed the name on them around 2000 . 3126 became C7. 3176 became C10. 3196 became C12. 3404 became C15 and so forth . The C designation denotes how many liters the engine is. It was changed because of the 2001 iso rating standard
@@stevenlatham4397 From what I see on youtube most are dying because some doof decides to intentionally trigger a full runaway for views. Irritates the fuck out of me every time they do it, too, they're murdering a perfectly good, reliable, sweet sounding ol' mill while going 'hurr new stuff hahaha comptuer go brrrr'. Ugh. Makes me want to bap them over the head. Still, an engine being renowned for reliability and longevity crossing the channel does still happen. Eric tore a Ford 4.9 I6 down, after all. I can't imagine it'd be *too* hard for him to find a screaming jimmy rusting away in a junkyard like he did that 300. Or, hell, he could just poke his Cali contacts, since Commiefornia is going full retard and banning all older commercial truck engines outright. IE it's going to be, if it hasn't already become, illegal to run one of these engines in a commercial truck registered out of Cali. Should be a flood of tired old Detroit 2-strokes, and even some 60 Series 4-strokes, flooding out of Cali as the trucks they're in get scrapped over that law. If Eric does get his hands on a Detroit 2-stroke, I want to see him start it in the shop first.
#3 injector showed signs of not being replaced and #3 Cylinder had signs of a leaking injector. My best guess without seeing the engine up close is it's probably a high mileage engine and they most likely found a replacement rather than infame it
I was introduced to mechanics at 19 or 20 (back in the '70s) when they brought me to a shop with two disassembled Cummins inline 6 engines. One came from a belly-loading earth mover donated to the school I attended. The other was a truck engine the school bought used. These engines had three heads each (two cylinders per head). They had someone with experience come in intermittently to show me what to do. With parts from two engines, plus a handful of new parts (rings, bearings, one piston, etc.) I got it reassembled. The heads had to be torqued in steps up to 480 foot pounds. I had to use a pipe as a cheater to get the last steps done. I missed some parts in the head gaskets and had to remove and reassemble twice, meaning I went through the torquing and timing process three times. The last time, the engine was in the earth mover. I had to park a flatbed truck next to the earth mover and use the bed as a platform. When all was done, it ran, but it was tight.
well - monster to small - please do the POS Mini Prince N14 motor. I was just into mine today, and the level of POS is astounding. Plastic everything. Please? They oughta be cheap to find / tear down. - I know mine is....
One of the things I like about your videos is that you do your homework and give good info about the engine. It's not all about just tearing it apart!!
Back in the 70s, I worked for Cummins. I usually saw the 855 cubic inch engines. (That's about 14 liters.) The head and main cap bolts torqued to 300 foot pounds. I weigh 140. That was an adventure. 😂
Do you mind if I do a reacts video to your 3126 videos? I know a little bit about these engines.
For you?
Absolutely. I watched several of your videos before starting this endeavor.
@@I_Do_Cars Great, I had a few people comment to watch your video and that is what I'm currently doing. A reacts video could be good for both channels. Great video by the way.
@@AdeptApe well thank you and I totally agree both channels could benefit. Looking forward to seeing what you come up with.
My two favorite youtube mechanic types in one thread.
@@TwoAcresandaMule agreed! 🤩😍
Diesel engine math? "This engine has 3 valves per cylinder; 2 intake and 2 exhaust..." 😉 Great information and entertainment as always!
One of the intake valves is also an exhaust valve.
I noticed that too. 😂
One valve is a normally undecided valve !
I had to rewind a moment on that one too!!!
That third valve occasionally identifies as an intake valve and at others an exhaust valve.
Straight six with a turbo. What could go wrong? We caught that BMW reference 😂
Most if not all straight 6 diesels have turbos
@@anthonybeal4220 Most, if not all of the cars in Eric's personal garage are straight six, turbo BMWs.
@@Mishn0 only two and both are the same car.
I prefer my BMW’s naturally aspirated typically.
I have got 2 turbo diesel straight 6 BMWs, one is a 2002 (m57) the other is a 2015 (n57), the 2002 I've had for 15 years and never had issues with the power plant, the 2015 I've had for 2 years so far without issue, I've maintained a few petrol 6 cylinder BMW (2000-2004) for family and friends and the main issues they had was pcv valves and pipes cracking and blocking an on the newer ones the cooling system had some issues, apart from that they've been reliable, newer ones have had issues with injectors, timing chains, throttle bodies, swirl flaps, egr, dpf, auxiliary water pumps and ECUs, it's as if after 2005 and onwards reliability had deteriorated, I'm sticking to buying the 6 cylinder turbo diesels till they stop making them, but their other engine ranges are just getting weak.
Bahahahaaa.
What could go wrong?
Twin turbos.
"PENETRATOR" delivered over my surround sound system just made my evening 🤣🤣🤣
Been subbed for about 6 months now. After sitting behind diesel engines for over 20 years its nice to see the insides of one. I want to tell you some of the things that I like about your content. 1) Your sense of humor. "Oh this part looks perfect....Yeets it across the room) 2) NO MUSIC Who needs it? music interferes with the narrative. 3) Even the sound of tools is fast forwarded, Very cool. 4) Things break, fall, splash... Included in the narrative. Bonus point for realism. 5) A variety of engines most of us would never see. Keep up the good work.
alright now that you've gotten into the Cat family when can we expect a 3406 or C15?
Thinking the same thing
For those, check out Adept Ape, those are his specialty.
That list could out last my life
Hell yeah...3406
C15 would be amazing to see.
2 intake and 2 exhaust do not make 3 valves/cyl
Treed me-I was about to comment the same thing
Eric went from kindergarten to working on engines. So, there were no math classes. 😅😂😅😂😅
Common core math
2+2=5 ????
@@txstang84 me too!
3:58 2 intake and 2 exh valves equals 3 valves 😂
That got me too.
There are three types of people: Those who can count, and those who can’t.
One intake valve 2 exhaust valves
It's that NEW math.
If that whole integral valve cover harness/injector thing seems familiar, that’s because the injectors are indeed HEUI units. Same as the T444E. As far as I remember the HEUI injector was a CAT design, which they sold or leased (I can’t remember) to IH/Navistar which was then put into their engines which eventually included the 7.3 Powerstroke. In fact-those injectors even have the same electronic connector as seen on the Navistar motors. The connector that goes to the brown plastic box looking thing is a solenoid with an electromagnet inside which, through its own complex system involving cups, pistons, valves, etc. provides very high injection psi. very advanced for its day. And that burnt injector with the jacked up O-ring probably has a bad injector cup. Basically the mating surface. Once that goes, it starts eating the O-rings.
Cat made the injectors and sold them to Navistar.
wait, I thought you always take the spark plugs out first!
Always plugs first! Lol
The liners of the cylinders are made to change out rather easy on diesel engines. That is part of a rebuild. The scratches are not really a big deal!
~6-7 liter motors usually don't have easily replaceable sleeves due to the length of the motor. Usually requires removal, complete teardown, and a machine shop to press repair sleeves in.
The 3126 and 3208 don't have replaceable liners, pretty much every other Cat engine does but they cheaped out on these.
According to the interwebs, the sleeves are like $30 - 40 each. Did Eric say that block had 300k? If so, that scratching may not be out of line. It will be interesting to see what the rings look like.
This engine does not have liners, but it can be bored out in order to install a dry sleeve
This is a parent bore engine, no wet sleeves in these they need to be bored out
Train 🚂 engine next please 🙏 😂.
If he does a train engine, I want to be there, we would have to cater 3 meals and snacks, that would be a long day,
Turning those headbolts was like the rowing scene from Ben-Hur.
Dahaha, the only thing missing was the guy in the front beating the drum.
@@damanifesto I watch Ben-Hur every Easter Sunday, so was on my mind to begin with.
@@reubensandwich9249 Great movie.
Either cylinder 4 had a well used replacement injector or a bad injector cup, looks like combustion gasses were getting out between the injector and the cup torching the seal. I'm going to guess that the wear in the bores is from excessive idle time followed by brisk acceleration, used to see it a fair bit in bus engines rebuilt by the company I drove for.
If you intend to do more teardowns of larger engines it might be worth investing in a 1" drive socket set, head bolts on bigger stuff than this can be torqued to 400+ ft'lbs.
lots of idle + WOT acceleration, sounds exactly like bus service, with a 7.2L my guess would be school bus, IIRC transit buses typically use the C9
Torque spec is 300ft pounds plus another 90 degrees after that. On a digital wrench it's just under 600 ft lbs of torque per bolt. Wet sleeved motor to fix the bores just pull the sleeve out pop in the replacement one along with the piston and rod.
Since you're familiar with these engines, is the cylinder scoring at 300K miles to be expected, or surprising? And if unusual, what part of the oiling system is the culprit?
Unless I’m mistaken 3126 I don’t believe was a sleeve motor?
Jesus xd How do you torque the head to spec by yourself? I guess you pretty much need some help xD
@@JeffinTD you are correct, would need bored over
@@FloodExterminator you use a 3/4 inch torque wrench to tighten the head bolts and I always did it solo
Eric, for a man that knew practically nothing about this engine, you sure looked like a veteran to me. Well done buddy. Can’t wait for part two!
Watching this get a tear down was a good bit of nostalgia for me, and I was impressed he did it about right.
Once he got it apart, it really does look like a pretty simple engine
Eric I have a farm boy background which means I did really brutal labor when I was a teen. Now I'm a much older fellow (and not doing farm work 🙂 ) Take some advice...use every tool that makes sense to eliminate any possible damage to your spine. A crushed spinal disk will cause you the most horrible agony until it can be repaired surgically. Use cheater bars, buy better tools, invest in tough tools, anything to save your back, muscles and other bones and joints. I'm real glad you used the forklift to remove the cylinder head. Great video and I hope your back is recovered.
That injector with melted o-ring is cause the crush washer/seal was compromised either not tighten correctly or reused allowed compression to get past it
That was my thought too. Compression leaking past essentially overheating the fuel o rings. Well, fuel or oil I don’t know which set one is on the bottom. Probably fuel.
Cool engine teardown! I know there are higher torqued items, but the highest one I've run across was on a B-52 landing gear trunnion cap bolt. We had a special torque wrench that was made of extensions of two foot or so increments that could connect up to almost twelve feet long. The wrench went 2000 lbft. I don't remember the exact torque, but it used most of that wrench
2000 ft lbs would require a torque multiplier . The flywheel bolts on a 3516 cat engine takes 1600 ft lbs
“I thought it would be tighter”
Famous last words.
Hilarious 😂
Thats what "He" said!
Not tight, FULL!
Are we still talking about the motor?
Always wondered about these engines in LMTVs. Have a great weekend Eric.
Eric.... I always hit the thumbs up button even before I watch the video because I know it's going to be enjoyable, entertaining, and informative. I always look forward to the next tear down.
I'm glad I found your your channel. One of my favorites. Take care. Cheers
Dido
@@anthonybertone2336 "Ditto" or "Dildo"?
I've worked on more of these than I care to count. Generally pretty reliable engines with a few common problems, usually with the injectors and high pressure oil pumps
Thermostats, cam sensors, and oil coolers.
I love to watch Josh over at AdeptApe, a Cat mechanic out west. I was so glad when you lifted the head with a forklift!
funny at 3:52 he says the engine has 3 valves per cylinder and then says 2 exhaust and 2 intake🤣
we know what you mean
The top end of this thing reminds me a little of the late 90s International DT466, especially with the HEUIs and valve bridges.
The issue with the darkened injector is that the copper washer around the base of the injector nozzle wasn’t sealing to the head. Common if the injector was replaced and not properly tightened down or the bore it sits in is dirty. It’ll leak compression past the copper washer and burn the o-rings on the injector. The 7.3 and DT466 use very similar injectors and had the same issue.
When I first started working on diesels (coming from gas engines), I complained about how tight all the bolts were and how heavy everything was. What I realized is that I was using basically tools for cars on big trucks. Trucks, and the big diesels inside them, require different tools. If you use the right tools (including lifting tools) then its not an issue.
The international HUEI system was designed and engineered by caterpillar
Love that you got your hands on something more industrial. You should try and get your hands on something a little bigger. Like a 20+ liter engine that was hooked up to a genset. Kohler would be a good place to start. Currently the biggest engine I work with is 53 liters(16 cyl. 4 turbo). Thanks for all you do to make Saturday nights awesome!
"A little bigger"????
You could damn near stand in the cylinder of a V16 locomotive engine.
@Christopher Weise yeah, a 20-odd liter is a little bigger. Never said anything about Eric getting a v16, he doesn't have the equipment to handle anything that big
@@christopherweise438those are a lot of fun to work on
@@huesos5976 I can hear Eric making a joke about his "equipment".
@@huesos5976 - I know. It's all good. He doesn't have a 19,000 pound engine stand. 😉
28:50 The turbo off that thing makes a killer backyard jet engine. Just sayin'.
Eric, is that an 84 Mazda RX7 up in the rafters I see? I already noticed the 86 or so Mazda extended cab pickup in a previous video.
I do the same thing with VGG vids.
"hey....what's that hiding in the back? Looks like a future video."
@@christopherweise438 It looks like Eric likes older Mazdas on top of his like for older BMWs.
This channel taught me engines, English word association and idioms, quick math's and safety! Thank you Eric!
It's easy to tell that Cat didn't hire any German engineers to design their engines, except maybe for the head bolts.
German engineers are the best
Definitely would like to see you and KT3406e collaborate on one of these diesels.
Love that dude! Low key but funny and entertaining all at the same time!😊
Why? Two completely different types of people who do completely different things.
@@lllateralus that’s the key to it. It would be neat to see him, talking him through taking it down. It’s always good to see one two fellow UA-camrs get together, although different fields of expertise, but doing the same thing.
And they do it to bring viewership together.
@@robertwest3093 yeah, I do like his videos there to the point in you may have a few F bombs hit the ground every now and then but it’s nothing but pure iron.
Put a j35 in a pilot over the weekend, broken valve spring in the grocery store parking lot at 190k....cylinder 6 devoured the valve
Gotta admit you get me everytime with that penetrator voice. Outstanding
When I sold my truck it had 1,128,000 miles on it & we’d never been inside it ran the overheads annually. I wouldn’t have been afraid of running it another 5-7 100K.
I saw some fellows doing an in frame overhaul on a Detroit engine in the parking lot of the little America truck stop in WYOMING aU Haul trailer was their shop. It was going to be a good engine when they got finished.
You need KT3406e to give you some pointers......and maybe a Detroit Diesel experiment in your parking lot.
I watch him too!!! Crazy Dude.
Yeah, like a 318 double breastfed Yamaha!
Not to brag or anything but I kinda called it in the comments that he should tear down a cat (I said he should do a c7 but it’s pretty much the same) two videos ago when he tore down those two ls engines
This is a really interesting teardown. Let me know how the chiropratic went for your back.
Absolutely love the content man, so awesome. One thing I'd love to see if ever possible, would be an Audi/VW w8 engine
I wonder if you could use those pushrods for your pulley puller
Way way way too big lol
@@I_Do_Cars That's what she said.... Man, I couldn't resist it.
@@I_Do_Cars Maybe a job for the angle grinder ;)
@@ikocheratcr I winced in pain reading this....
@@I_Do_Cars that's not what she said
Adept Ape may have some knowledge on this engine.
Surprised to see one condemned over something as "minor" as fueling issues and cylinder damage. Haven't watched far enough yet to see the carnage though.
These engines are very serviceable and haven't been manufactured for a while, so owners generally try to keep them alive even going as far as a deep rebuild.
They can be rebuilt ,but there basically a throw away engine,nasty injector probably injector cup bad bb
Thats what I was thinkin...
But... great choice of engines! After forty years of truckin, I can say that's one of the first ones I piloted. Really enjoyed this one. Anxiously awaiting part 2!
I actually FELT that @ 20:30😢
Literally cracked/bruised the holy he'll out of my ribs and sternum doing something like this...
Recovering from that fiasco was ine of the worst, most painful months of my life.
Hey diesel mechanic here, the condition of the number 4 injector I suspect is due to a burnt injector cup. Take a gander in the injector bore and see if you find anything unusual, be nice to see that in the next video too.
My jaw on the floor right now watching the exhaust bolts NOT break off 🤨
You have to use the PENETRATOR.
Or luck. 😂
Nice, clean floor! Let's see how long it stays that way.
Ice RX-7 on the lift. Keep it alive!
That was the first thing I noticed. Hope it is a project car.
I love these bigger engines. The steel used is so massive and robust.
Just wait till you get to the main cap bolts! When that engine is in a chassis, especially an rv, those fuel lines and hpop lines are a huge pita. Good engine though. Nice work so far!
The mystery nut was sitting on top of the intake manifold while you were unbolting it. It fell into the block when you removed the manifold. But I'm sure you saw t hat during editing.
I've done some top-end work on a few of these at work, but never had the joy to tear one fully down. We've had to replace a few HEUI pumps for engines that won't start when hot. I suspect frequent oil changes would have been cheaper! Mostly we work on Detroit DD13 to DD16 engines, though.
Im so excited... I have a gmc 7500 with a 3126 and absolutely love it
Fuck yeahhh cat power...
If my c15 blows up I'll donate it for the channel lol
14 pounds plus of head bolts. now that is good. comes apart easy good deal. Thanks for the cat demo.
Oh yeah. My weekend begins NOW 🤩🙌🏻🥰
Used to use those engines on Ultra high pressure pumps. Good Times.
Back in my auto parts sales day I visited a shop swapping a 3126. Every pushrod was bent and two inspection windows in the block.
It was in a paving crew dump truck and they ran out of fuel. The Cracker Jack crew started spraying ether in the air box outside the hood trying to start it. Halfway through the second can the engine finally caught it and sucked it all in overrevving the engine.
Nice to see an easy to work on engine. It's almost like the engineers actually talked to a mechanic or two before designing the thing. When I was working on airplanes (light planes) the worst thing I could call someone was a Cessna Engineer because of the way they shoehorned almost everything to be impossible to work on in the engine compartment and landing gear area of a retract. Especially the push pull Cessna.
Engineers have to design everything within a constraint. On a plane, it has to be crammed in there to satisfy the design requirement of fitting inside an airplane. The plane working as an airplane is more important than the plane being easy to maintain
I can only speak for Cessna 172's and 152's, but I have a personal joke about Piper...
1. The ones we have at my jobe were designed/built in the 60's/early 70's.
2. Their Company name is called Piper.
3. Most of their planes they build/built have Native American themed names.
WHAT DO YOU THINK THE ENGINEERS WERE SMOKING?!
Agreed about the Sky Disaster though. If I EVER have to see a Skymaster Control Cable again, it will be far too soon.
Damn near impssible to pull the retract actuator on a high wing Cessna.
@@beverlychmelik5504 there are retractable gear versions of 182, 177, 172, and of course the twin engine Super Skymaster (337) which all are high Wing Cessna designs.
I think his complaint was mainly aimed at the Super Skymaster.
The only thing worse would be a Hawker. I hate the 800s and 900s. Such convulated crap, and that was just the Avionics. I asked our maintenance guys how the gear was and the look they have me was murderous.
When you get to the fuel system crack the pump to rail supply line. Those systems hold pressure forever and its almost 4000 psi in the rail.
No! There is a fuel pressure regulator on the back of the head that keeps the fuel pressure at 85-100 psi. The injector can produce 5000 psi but only when the engine is running.
Wow - that thing has 1/2 the weight of a small car. BTW if those are stretch head bolts, you have to keep turning to the degree specs. after the 300 lbs.!
And I just betcha you WILL need a longer torque wrench.
They are not torque turn bolts they torque to 320 ft lbs
@@williambasinger5859 Excuse me, but you are in error. I looked it up. 320 is the 2nd pass, after which the bolt is rotated an ADDITIONAL 1/4 turn! It is, indeed, a stretch bolt.
@@TomPauls007 yes 320 plus 90degrees I miss spoke
It’s always a good day when “ I do cars “ post a vid 😌👌🏽💯
Really cool watching this! I work as a block machinist for the rebuild center at a CAT dealership! Love your channel but this is absolutely cool for me!
A great adventure , and outside your comfort zone no less.. You be extra careful with that, count your fingers every time you work on it. Tank Crewmen everywhere watch with knowing smiles.
As a diesel mechanic, it was funny watching you skip a cheater pipe.
The only CAT engine I ever saw that broke a rod was when the operator down shifted and over reved. The red line was 2100 and the tachagraph showed over 5000! we had a extra inspecton window in the block.
Appears to be a well designed engine, thanks for the teardown. 👍
You should've called Josh from the Adept Ape channel, hes a CAT mechanic. Pretty cool teardown
Tighter than the Mercedes head bolts, but were the head bolts tighter than the Land Cruiser crank bolt?
Glad it's mostly looking good so far. Can't wait to see Part II.
HAH ! I KNEW IT ! You gave yourself out when you said it was going to be something completely out of the norm for this channel.
I'm totally onboard with that, I love diesels. Honestly you could bring in a Weed Wacker for repair or disassemble and I still would watch.
Cold beer and engine tear down equals relaxing Saturday night
Now know why diesel mechanics look like they can snap anything, even 14 pounds of head bolts, in half.
Good engine, worked on a lot of them. Common in GM and Freightliner medium duty trucks, seen a few in Ford/Sterlings. Larger version of the earlier 3116 with HEUI injectors. Nice to see you tear down a commercial diesel. You would probably enjoy an Isuzu 4HK1 out of an NPR/NQR.
The 3116 HEUI was only made for two years it has an engine prefix of 1WM. It was a bullet proof engine and we never saw them come into the dealership for repairs. The 3116 is a 6.9 liter engine with only two valves. The 3126 which replaced it was a 7.2 liter engine, and had three valves, two exhaust and one intake. The 3126 became the C7.
Fun fact about the 3116 engine. It was designed and developed with GM and was only found in GM trucks. Caterpillar came out with the 3126 so it could sell the engine to any OEM that wanted one.
@@williambasinger5859 I like how you broke it down here. I currently run 2 C7 2006 WAX engines in my 2 freightliner box trucks, one has #3 hole getting some scuffs causing some blowby. I soaked that cylinder with ATF and acetone overnight to try to free up the rings, vacuumed up the mix, and so far it's not getting any worse after 4 months at around 400 miles a day
@@mattcat231 the WAX was my least liked C7 it had a lot of injector and heui pump failures. When either one fails you will get a lot of metal contamination in the heui oil gallery in the head that is a pain to get clean. Change the oil like religion and use only cat filters is the only recommendation I have to give you to avoid these failures.
Cat IN the box, we had a Cay 3516 in Antarctica that was in a conex container, it was called Cat In The Box. It's now also out and installed in the gen plant.
Absolutely nothing is inexpensive on Cat engines. Some of their engines like the 3406e and C15 are among the best engines ever made. 👍
3406E and C15 engine are the same thing. Caterpillar just changed the name on them around 2000 . 3126 became C7. 3176 became C10. 3196 became C12. 3404 became C15 and so forth . The C designation denotes how many liters the engine is. It was changed because of the 2001 iso rating standard
You are a fantastic content creator and I hope you continue to thrive man. You’re also hilarious, love your videos!
I'm kind of hoping we'll see an EMD 1010 on the show in the future, 16 cylinder variety. ;-) Looking forward to Part 2.
Or a Napier Deltic. Not as big, but still interesting design.
2:00 You NEED to get your hands on a 2-stroke Detroit next.
Thing is very few of those old reliable beasts ever fail, most are dying from sitting in abandoned trucks.
@@stevenlatham4397 From what I see on youtube most are dying because some doof decides to intentionally trigger a full runaway for views. Irritates the fuck out of me every time they do it, too, they're murdering a perfectly good, reliable, sweet sounding ol' mill while going 'hurr new stuff hahaha comptuer go brrrr'.
Ugh. Makes me want to bap them over the head.
Still, an engine being renowned for reliability and longevity crossing the channel does still happen. Eric tore a Ford 4.9 I6 down, after all. I can't imagine it'd be *too* hard for him to find a screaming jimmy rusting away in a junkyard like he did that 300. Or, hell, he could just poke his Cali contacts, since Commiefornia is going full retard and banning all older commercial truck engines outright. IE it's going to be, if it hasn't already become, illegal to run one of these engines in a commercial truck registered out of Cali. Should be a flood of tired old Detroit 2-strokes, and even some 60 Series 4-strokes, flooding out of Cali as the trucks they're in get scrapped over that law.
If Eric does get his hands on a Detroit 2-stroke, I want to see him start it in the shop first.
Work for Caterpillar since 94 - 3126 and C7 in Stryker Military Armored vehicles main engines till this day
one thing ive noticed about most straight six desiels is that valve covers almost never leak??
Eric save the push rods to use with your crankshaft balance puller since they are probably a higher grade and thickness.
#3 injector showed signs of not being replaced and #3 Cylinder had signs of a leaking injector. My best guess without seeing the engine up close is it's probably a high mileage engine and they most likely found a replacement rather than infame it
Almost like my engine. Has 5 valves. 2 intake and 2 exhaust
Wow! This really is out of the box, enjoying it already thank you Eric
I was introduced to mechanics at 19 or 20 (back in the '70s) when they brought me to a shop with two disassembled Cummins inline 6 engines. One came from a belly-loading earth mover donated to the school I attended. The other was a truck engine the school bought used. These engines had three heads each (two cylinders per head). They had someone with experience come in intermittently to show me what to do. With parts from two engines, plus a handful of new parts (rings, bearings, one piston, etc.) I got it reassembled. The heads had to be torqued in steps up to 480 foot pounds. I had to use a pipe as a cheater to get the last steps done. I missed some parts in the head gaskets and had to remove and reassemble twice, meaning I went through the torquing and timing process three times. The last time, the engine was in the earth mover. I had to park a flatbed truck next to the earth mover and use the bed as a platform. When all was done, it ran, but it was tight.
Probably my favorite video! Super cool. After all the complex messes you’ve done, this one is awesome.
well - monster to small - please do the POS Mini Prince N14 motor. I was just into mine today, and the level of POS is astounding. Plastic everything. Please? They oughta be cheap to find / tear down. - I know mine is....
One of the things I like about your videos is that you do your homework and give good info about the engine. It's not all about just tearing it apart!!
Really nice engine - Great teardown !
It's been really fascinating watching all the different engines you've had lately. Lots of variety.
Eric out here blessing us on a Saturday night, pour yourself a whiskey brother you've earned it.
Perfect engine for that 3/4 breaker bar 😂👌
Next one he does 1inch breaker bar . Big engines require big tools 😂
Easy to work on when not half way under a cab and between frame rails!!!!!!
Or in the case of a cat engine in a gm truck you had to lift the cab just to remove the valve cover
Such great content. Can’t wait for part 2!
Back in the 70s, I worked for Cummins.
I usually saw the 855 cubic inch engines.
(That's about 14 liters.)
The head and main cap bolts torqued to 300 foot pounds.
I weigh 140.
That was an adventure. 😂
is the nut from the heater element like on the cummins ?
Yes it was off a intake heater
All repeat after me, in German:
"Neunhundertachtundzwanzig!"
There is no substitute.....
I wonder what a strain gauge would tell you about how tight those were 👀
Didn't you just replace your old Milwaukee a few months ago? Hopefully it is under warranty.