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BLOWN UP 6.7 Cummins Turbo Diesel Complete Engine Teardown! What Failed Inside This Ram 2500 Engine?
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- เผยแพร่เมื่อ 19 ส.ค. 2024
- If this is the first teardown you are finding, there are over 20 others I've done! Lots of LS's, A viper engine, rx8 rotary, and a couple SRT8 Hemi's to name a few. Check them out here • Blown Up Engine Tear D...
My name is Eric and I own and run a full service auto salvage business called Importapart located in the Saint Louis MO area. Part of our model is dismantling and selling parts from rare and niche market engines. If you're interested in buying parts from other engines I've torn down, email us at Importapartsales@gmail.com.
In this video I tear apart a 6.7L Cummins Turbo Diesel engine from a 2015 Dodge Ram 2500. This was a core engine that I bought from one of the salvage yards I deal with for $600 knowing it had some form of catastrophic failure. This is the first 6.7 I've torn down and one of the first cummins engines I've torn down in general. Overall this teardown went very smooth, thanks to things I learned from the last teardown and some tips and tricks from your comments on that video.
As always, I love all of the comments, feedback, suggestions and even some of the criticism, I love it all.
Catch you all on the next one.
-Eric
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These tear downs are QUICKLY becoming the best part of my weekend.
And I thought _my_ life was sad!
Dude! I went to local pick-and-pull, bought damaged engine and disassembled it in to bits myself. This stuff is contagious :)
Same here "down under". It's the first time I have seen the actual components of many of these engines. My wife can't fathom why I would watch an engine being pulled apart. "Man stuff" I tell her. This video was interesting because we are now getting all these HD trucks in Australia (RAM, GM and Ford). Surprisingly the 6.7 Cummins is quite well known down here, in lots of buses and light trucks.
For real man, me too. This guy is informative and to the point. No gimmicks. Good stuff.
Yup, I been wrenching for 10 years and still enjoy taking things apart to find out why they failed.
The longevity of most turbos defies physics IMO. Think of how many billions of times they spin while shuttling you and your empty pickup to go get 3 jars of power bait.
A turbo spins at around 100,000 rpm while cruising 100,000 x 60(one hour) = 6 million so that’s 100,000 rotations a mile now let’s compare that to a semis average mileage which on the calculator comes to 1E11 or 100,000,000,000
That’s one hundred billion
5.9 Cummins owner and happy I got a Gen 3 engine...no dowel pin issues in the 3rd and no ridiculous emissions hardware to carbon up as is common on 6.7's...Getting 19 plus mpg pulling a landscape trailer and have had as high as low 30's mpg with a tailwind going down hill drafting a semi. 6000 pounds of dream palace comfort in my 3500 series, and never needs to be plugged in for a charge on a road rip...nice eh!!!
“There’s some parts here that do something.” Love it.
Me every time I open the hood of my car
"We're crowning."
I spit out my drink.
Yeah, that did not go unnoticed here either. Clever! :D
You spit on your what? LOL
Gay
Yes, “the piston is *emerging from its Hole.”*
😂
I love your videos!! You have a load of general engine knowledge, and the way you explain what you are doing is extremely helpful for those who are curious or don’t have much engine experience. You assessment of the situation with this 6B6.7 was spot on. Oil starvation is the culprit, and the failed #6 rod bearing was what started the carnage in this engine. I was part of the development team for this engine at Cummins, and although the B Series engines are very robust, they are not immune from poor maintenance and lack of adequate oil supply. The rod cap damage and intact, but bent rod capscrews were an indication that this engine was mere seconds away from a catastrophic rod failure, which would have destroy the block and many of the surrounding components. Keep up the good work!
You don't think the lifter could have been the initial failure? With a piece of it impacting(squeezed up against wall of the block) the rod cap, fracturing it? The fractured rod cap would cause a loss of oil pressure.
@@Melanie16040 that sounds far more likely, rod bolts don't just bend magically as such. there may have been other oiling problems leading up to it.
Do you think this engine was mistreated?
I work on these every day, so I have no idea why I'd come home and watch someone else do it, yet here I am.
One thing with these newer diesel engines, is that any job you need to do to one, you nearly always have to remove 7 things to get to it lol
Hell i take the parts to the assembly line, its cool to see one from the field being torn down!
Couldn’t be more true. Did some warranty work on a DD13 in a freight liner fl124 blasting truck…leaking fuel return line…it was interesting the body positions I contorted myself into to get at this thing.
One of many reasons why I am going to stick with my 2001 Ram. I can look down through the engine compartment on either side of the engine and see the ground.
@@chrisbaker2903 yea man I had a 2005 3500 and I would love to still have it but here in Nova Scotia we use so much salt that it's nearly impossible to keep a vehicle on the road past 15 years unless it's been undercoated yearly since new. The body was just so far gone it wasn't reasonable to fix it, but I miss that truck to this day. Everything was simple to work on.
@@alexmaclean1 What undercoating method and or products works the best
“Bearing delete” lol
It was nice to meet you at the show tonight. Keep up the good work!
"The right way, or the way that's gonna happen..."
Love it
The real easy trick on the injectors is to leave the hold down on, and slip a rocker bar under it, then use that to pop them loose. It helps prevent injector flight. I have also taken out all the bolts and hold downs, then jumped the starter, which enables injector flight.
"Injector flight"
@@OkuriLucy It beats injector fight...
That is one impressive engine! Look at the timing gears and how neat that oil pump sits there! Beautiful.
I just changed the serpentine belt and idler on my daughters 6.7, and I questioned my life quickly after I started. These new engines are tough to work on. By the way, calling me a mechanic would be a slap in the face to an actual mechanic.
Fun fact, those connectors with the red clips are called Framatome connectors. Very common on class 8 trucks. Cummins also uses them almost exclusively as well. They do suck but when you deal with them every day it gets easier. I enjoyed the video!
I didn’t know they had a name!
@@I_Do_Cars I'm sure they've been called many names
Something good to watch on a Saturday evening! Thanks! 😁👍
Lifter bucket failed first. That fell into the engine and the rod ran into it breaking the rod cap and bending the rod bolts. With the rod not sealing properly, there was no oil pressure and the rods all landed on the crank journals.
That would make perfect sense.
Stephen, what would of caused the lifter bucket failure? Was it preventable somehow or just bad luck?
@@braedencherrington9692 Nothing to do with "luck." Why it failed will remain a mystery. If there were pieces of it that weren't minced after the initial failure, then the metal failure mode might be detectable, but that stuff's all in the scrap bin now. Likely possibilities include metal fatigue from use or a casting or machining error. Very unlikely to be an assembly error. Something like that would usually show up very shortly after the engine started running for the first time.
That’s a pretty damn good explanation
The lifter did not fail first … oil starvation caused the bearing to fail, which set into motion all the other progressive failures. Please believe me- I was on the development team for this engine for 37 years, and the tappers do not fail unless struck by debris from some other failure, or by massive valve train overload, such as in this failure..
I gotta say, I love hearing the impact guns on fast forwards. It sounds like I'm watching some space battle going on.
That's probably where the original sound effect came from.
Many years ago, before I’d encountered ferrets in real life, I used to call air-ratchets *ferret-calls* - as I imagined they made that kind of noise!
I work at the 6.7 plant, my team takes the parts to the assembly line. I enjoy videos like this. I remember those parts on that model year. Minor differences on the ‘19+ years
Nothing "minor" about the changes to the 2019 "CGI" engine, from the 2018 & prior.
Worlds apart, actually.
There is, literally, very few directly interchangeable parts, 2 being head bolts and rear adapter plate.
Another pair is rocker box and lower rocker cover.
Look at the subtle differences that won't work individually from the earlier engines and you'll find the "CGI" (or roller) engine really is it's own design.
Finally, some more diesel stuff. My heavy duty mechanic heart is happy
Te loud POP on that injector coming out :D That looked better than some national space missions
The part between the two valve tips and the rocker arm is usually referred to as a "bridge". Another great video, too.
I’m not even slightly mechanically inclined but I really enjoy these videos. Stella should have more cameos, though.
Should have called this channel “engine autopsy”
I enjoy this content.
I always like to refer to these as "Post Mortems". LOL
@@davidkeller2832 post motorems?
@@davidkeller2832 more of a pre transplant inspection , kinda like the guy hit a wall at 50 on a motorcycle and don't on his license.
No idea why it took so long for this channel to grace my screen, but I love it. The banter, the skipping-parts-that-really-need-to-be-skipped, engines I've never seen etc. The ugga dugga, the chipmunk commentator that steps in for the fast-forwarding... But honestly, the clarity of the video and the lighting.
Any regular block would be totally destroyed if the bottom end destructed the way this one did. That speaks volumes about Cummins engineering.
It would be nice if they'd go to a 4 or 6 bolt main, they are pretty indestructible with the 2 bolts though
Eric(k) not sure! I'm almost 70, My friend and I rebuilt a 70 SUPERBEE and a 70 Road Runner both were 383's. This was from 1980 to 1984. I don't built cars or engines anymore. I watch you every evening and wow! I am always amazed at your work. I can't believe that people don't check their oil and let an engine go SO low. I'm learning every evening I watch you. You're amazing Dude! Keep up the good work and you're my high for the night! Rock On!
17:31 3...2...ignition...and liftoff of Cummins Space Program 1, to boldly go where no injector has gone before!
This 6.7 Cummins has cylinder liners which means it won't need to be bored, just resleeved, at least on #6. Best part of this, there's no need for larger rings once the work is done.
This is such a wonderful channel. I am a car guy but it is not my profession. I understand the basics of an internal combustion engine but you probably wouldn't want me wrenching on yours. But watching just a few of your videos and I've learned so much more!
Your easygoing, humorous, and self-effacing commentary combined with your encyclopedic knowledge of how these powerplants function makes for a fascinating watch. I hope you're earning a bunch of TH-cam money for putting them out here. Not everyone can put together videos that are as compulsively watchable as yours. I've been bingeing on them like a Netflix series.
Keep up the great work, Eric!
I gotta tell you young man. You could do stand up. So, a comic and and engine tear down? What more does an ole guy like me need? Nothing. Your awesome. The way you tear apart then sell these engines is nothing short of brilliant.
Hopefully you will have a Powerstroke 6.0 someday that I can learn from. I own a nice truck with one of these smog choked diesels. It's still young so when it does go, I want to rebuild it myself.
Be well and carry on!
Wix XPs are some of the best filters you can get.
you usually see fleet guard on a Cummins, they are a little more than wix, so maybe cost was an issue?
@@shaggyduder No…
Their micron rating isn’t great. 35 microns at 99%
I heard Wix is just a rebranded Fram. I stay away from Wix and use Fleetguard in mine.
@@martyisokay that’s news to me
Ej22: ok I can lift everything ok
6.7 Cummins: OMG EVERYTHING IS MADE OF DARK MATTER
I just did injectors on my 5.9 a few weeks ago and had a minor hiccup in the valvetrain that fortunately I caught before it could do any damage, so this was especially relatable! These teardowns are also preparing me for a head R&R this winter in preparation for compound turbos. I'm SOOOO glad my motor is pre-emissions.
The main things I like about your videos is this. You explain what the faults of the engines are and they teach how to repair them.
Tip: Camera seems to be focusing on the floor instead of the engine. On most cameras you can adjust the area where it tries to achieve focus. Adjust it for a small spot in the middle and make sure that spot is always where the engine is.
I like how he hit the turbo a couple times then was like 🤔“nvm bad idea” and started hitting the much cheaper part the exhaust manifold! 😂7:32
38:19 I think it'd be pretty interesting to see you tear into a blown up class 8 truck engine. DD15-16, Cummins ISX, something like that. You might need two forklifts to work with metal that heavy but hey. would also be super super fascinating to see a Detroit 2-stroke cross your bench. Haven't seen any two strokes on your bench because they're so exceedingly rare in automotive applications but that'd be the most likely source. Plus with the collector's market for those things being what it is I'm sure you could make something off of one.
Keep up the awesome vids!
deboss garage did a few of those. motor alone was like 7000 pounds, just insane to me and it wasnt even the biggest one
@@bradhaines3142 Yeah they're not light but I think it'd make for some interesting content. And I'm sure some money could be made out of the other end. Just up to whether or not Eric's willing to deal with pistons that weigh 40-50 pounds *each* or not.
@@bradhaines3142 Diesel engines are heavy. They are making some lighter lately though. My 01 5.9 Cummins is supposed to weigh 1150 lbs. Compare that to a Chevy 454 all iron at 700 lbs. Or a Ford 460 at about the same.
Spent years with the Detroits in boats. Heavy was an understatement. Just ask my back.
This was a great teardown. Highly enjoyable! & lots to learn. Clearly those Cummins engines are virtually bullet proof. Very surprising there was not more damage. Well done. Good job. New Zealand is full of the Landcruisers. So very interested in what’s coming up. I understand I’m better to look at an older model landcruiser than anything produced today. Hope you make some good bucks out of the Cummins!! Cheers mate🤙🤙🤙
The RAM 2500 is a great shipping crate for a Cummins diesel
Salty Ford owners.
@@beni7928 Fiat supporter.
Found one.
@@beni7928 Yes, we found a fiat supporter. Fix it again, Tony.
@@robertshelton3796 tell me about the powerstroke 6.0.
Enjoyed that very much, always wanted to see the inside of a Cummins, thanks.
Love the carnage....love autopsies of engines you do a great job showing the failures keep it up
These vids are truly a marvel to watch, I'm a bike guy so most of this is beyond me. But I stopped the playback at 4:00 when you admitted "... I don't know what I'm doing", clicked the Subscribe button and went back to watching. Anyone who has the jam to straight up admit to being clueless in a situation is someone I'm glad to offer my gnat-like attention span to. You're doing something right, Eric, carry on.
Great tear down. I have 2 Cummins 6.7 RAMS and I pay my shops to do the work. One RAM is getting a new head gasket and injector check. The other RAM is getting a new B D exhaust manifold. The useful part for me is I can see all the work they go through. Now I can appreciate the $$$$$.$$ bill a little more. Och!
As Cummins owner and lover this hurt me to watch however, hands down best vid so far.
I’ve worked on a lot of these… I gotta say they are much more complicated than 5.9 but years after the first 6.7 have been pretty solid. I’ve got a 2008 with a gob of miles bone stock and have had very few problems with it
I have a 2008 Dodge with the 6.7 Cummins. It only has 73,000 miles but is a real PITA regarding the EPA junk. Last month I took it into the shop since one of the idiot lights came on which was fixed but the mechanic thinks the turbo will be going soon. I'm just hoping my new truck (ordered the end of October) arrives before it goes.
That unit on the intake is the grid heater.. The valve and rotary unit on the exhaust is part of the EGR system. The black thing on intake is EGR. The wire on end cap has 4 screws to go on it.
Amazing tear down.. I have an 09 6.7..that turbo and actuator and cooler are good expensive parts.. Some royal purple degreaser soaked overnight will clean up nice.
The famous Cummins has the "look" of a well engineered, solid motor. The best (only?) thing going for Chryslers. Thanks for the up close and personal visit to this 6.7.
Not anymore, the updated version that came out a couple years ago is junk. powdered metal block ( trash ) roller lifters and roller cam ( trash, they are failing as often as Hemi cam and lifters ) the high pressure fuel pump self destructs after 60k miles, sends metal shavings through the whole system. That means you have to replace the entire fuel system to fix it- pump injectors lift pump filter housing and the damn lines. ( major trash )
The old cummins are some of the best engines ever made.
@@fwddodge22 2019 with CP4 aka trash fuel pump.
@@repo4sale correct! some people have been converting them to the older style pumps after getting burned with the cp4 crap
29:23 the inside of the piston looks beat right where the wrist pin is
Saw that too, but figured it’s probably marks from the pry bar used to tap the piston out?
@@wxwzl404 Any force applied to encourage it to leave the block is applied to the rod, not the underside of the piston.
I have a 2014 Ram 2500 HD with Cummins. Great engine. That one looked pretty rough. Had a Duramax before. Fords look a lot harder to work on. Love the Cummins.
The worse part of "my wrench is now part of my wheel puller" is when you forget and you have to figure it out the next time you use it. That situation is not bad but forgetting to take a nut that got stuck in a socket is.
Love the flying fuel injector, and the crankshaft predicament. Shouldn't have done it this way lines were classic. Anyway love the tear downs.
That Land Cruiser experiment should be interesting! Glad the Cummins delivered for you. What about the Mystic Mustang?
Eating a bowl of popcorn while watching someone else tear an engine down. It doesn't get much better than this.
Imagine sayin 20yrs ago: "we're gonna make vids of ol engine tear downs & people are gonna love it"!...
It would, in fact, have been so cool if No. 6 injector had popped up and you'd caught it in midair. NLG.
I love to watch your vids, it's like watching a callenened person at a job with no clue,very entertaining, Great tear Downs,you need to do a Big Diesel engine,even a military take out
28:45 “we’re crowning!” dude you crack me up😂
Your nut and bolt collection must be enormous!! I wish I could get that.
I seem to have gotten hooked on watching you tear down all the engines you do.
I'm a school bus driver, and we have a bunch of buses at my location with this engine. Nice to see it here!
That engine can be reconditioned. Machine the crank, put u/s bearings, & bore, then hone the block, put in o/s pistons & rings. Replace damaged rod, reassemble using slick-1 lube, & it will last another 30 years with proper maintenance.
I love the creative descriptions. "Adjustable rod."
Woohoo!
Been jonesing for a tear-down for...what...a whole week! Too long! :D
Great video. Watching the emissions crap coming off was relaxing.
This is the first time i see an engine with cables under the valve cover .. i really enjoy your videos btw .. all of it, thank you for making this kind of content .. 👍🏻
Most modern diesels have injector/ glow plug harness under valve cover .
@@texasslingleadsomtingwong8751 hmmm .. but i still think that it is a hot, dirty and inconvenient place for a cable .. 😁
Can't imagine the type of person who would drive a truck with a 6.7 Cummins in it wouldn't know to change their oil. My guess is this motor was in a fleet truck where oil changes were "somebody else's problem."
idleing these diesel engines put a lot of wear on the oil, oil changes should be by engine hours not just mileage for these types of engines
If it was a fleet truck, then the fleet manager should be on top of oil changes... Unless some drivers were not reporting odometer or engine hours.
I love this channel, always watching in my downtime
I love how you investigate the damage and explain what failed inside!!!!!!
These 6.7 more the ISB6.7 paired with a ZF auto box are a staple in many Alexander Dennis double decker buses in the uk and probably other countries.
Awesome!!! Really gives some perspective on how much crap the emissions can gunk everything up!!!
Great teardown Eric, the Cummins ISB6.7 paired with the ZF auto box is the main power plant of our double decker buses here in the UK like ADL E400 and mmc versions.
23:48 I have worked on these engines in Freightliner M2 box trucks. Usually about this vintage too. Usually only did PMs on them though; they seldom gave any grief. Only time I ever saw deeper inside one is when a driver put gasoline in the diesel tank and fucked the entire injection system over.
i own a 2013 M2, with the ISB 6.7, or should I say 3.3, as i had the oil supply to the turbo bust, didnt know until it was too late, and now only have 3 cylinders with compression. So now, i have to find another engine. I should go pull the oil pan and windage tray just to see what destruction i did. Big plus is now everything on the passenger side including the whole frame is now rust proof, lol! (it's a former Ryder 26ft box truck with 879k miles)
@@mattcat231 heh heh. 900 thou ain't a bad life, especially as a rental truck. I was a Penske greasemonkey myself and a lot of the trucks I worked on had less than 100k. I even remember doing PDI inspections on brand new M2s with these engines in them.
I’ve heard of the rod cap bolts loosening in those engines for whatever reason.
Deboss garage on youtube talked about it in a few videos.
Bro. Love these videos. The gear head in me really enjoys them. Keep them coming.
I have a Napa 1000 lb rotation stand that I've mounted the rotating mass to and installed oil pan. The remainder of the build (head, exhaust, etc) was done on the floor on a tire and wood blocks/jack stands.
That was a 2001 so maybe slightly lighter at that point-maybe heavier too.
Happy to see another video. I look forward to these.
Going from Lawsuits to WATCHING MY engine being taken apart is so COOOOOOL!!!
Even if I hadn't seen the crankcase window, it's easy to see something bad happened as soon as the head came off. Neat thing with inline sixes, is that pistons on opposite ends of the block travel together in pairs. Better way of saying that is pistons 1 and 6 should be in the same position, same thing with 2 and 5, 3 and 4. Since 1 and 6 did not match, safe to say something bad happened with the connecting rods!
The wix filter did this engine. The correct filter number is fleet guard 16035 this is a stratuspoor oil filter. My 1989 came with fleet guard oil filter.
I am always amazed at how much those engines weigh compared to like a LS7 of similar displacement
Awesome content.
They use the annoying red tabs so you either have to buy a custom and expensive tool to remove them without breaking them or buy a replacement connector each time you need to remove it for maintenance.
You can't buy replacement connectors for most engines. You wreck a connector, you need to buy a harness.
@@SomeTechGuy666 Oh shit i didn't realize they made it that expensive to fix a broken connector.
I really love all the diesel stuff you should do more
It’s just a matter of getting them. I’m going to try harder. I’ll say the next diesel teardown will likely be a duramax.
@@I_Do_Cars yeah buddy!!
Thank you for providing such great content. I would love to see a teardown of a 32v northstar V8!
Eric, thanks for showing us this video.
Also, can you please do one with the Ford Stroke diesel engine, the one that has the turbos mounted on top of the engine?
Thanks!
A powerstrokemeoff would be fun to see him struggle with.
dont all ford powersroke engine from the 6.0 to the 6.7 have turbos mounted ontop of the engine? I'm sure chevy has the same thing for all of the Durmax engines
Only one turbo, there, super cheif
@@EATSLEEPDRIVE2002 A Powerstroke 6.4 actually has 2 turbos, they are one assembly but it is actually 2 turbines.
"I don't see any exit wounds..." HAHAHA! Almost spit out my coffee.
Id love to see you tear down a VQ37VHR the block and crank are decent money so you could definitely make a couple dollars off one. (if the bottom end isn’t obliterated) Love the tear down videos keep up the great work!
Great Tear Down Eric ! Thanks For Sharing !
Popcorn and cold beer along with this video. Happiness. Thanks.
By far the easiest diesel to tear down and work on . 😂
I have a 2008 Dodge Cummins 6.7. Interesting vid to know what is under my hood and what makes it go! Great vid! I really need to get my valve lashing done, though.
You are a great wrench. Some guys just have the nack and you definitely do
Wow that's amazing how much a rod and cylinder works overtime on a heavy hauling. Learning about different engines.
Love the older Cummins engines. Unfortunately due to the high stress from emissions compliance; the newer ones have been rendered unreliable. I have switched back to gas and have less problems
Yeah, I'm sticking to my 01 Dodge 3500 with 5.9. It's still barely broke in at 193,000 miles.
@@chrisbaker2903 Cummins real good until they added EGR, and REGEN like mid 2007.
My 2005 Ram 3500 4x4 is a good setup.
Who knew throwing all that exhaust back into the intake would cause that kind of buildup. Love my cummins engine, but not expecting 200,0000 trouble-free miles (already on #4 intake heater and #2 DEF pump)
Your videos are informative and very well edited.
I enjoy watching your tear downs.
You can take 2 pistons out at the same time. Cylinders 1 & 6, 2 & 4, 3 & 5 are companion cylinders. Save you from having to turn the engine over so many times.
1 & 6, 2 & 5, 3 & 4
I love your videos. I get to take apart many machines, but have to make them fly again. Put all the pieces back together. Fly they do.
“I love my brain sometimes. Sometimes it’s a piece of crap.” We’ve all been there.
love these videos! I've been learning so much
The red lock locks. GM uses them too. I can't remember a day when plugs coming off were an issue... I feel your pain man