9/8/24..am not a mechanic or diesel aware person, but at 80 years, am much impressed with your purpose of educating/showing all viewers details of our gas or diesel engine components. Enjoy yur channel, camera positions, lighting & shop cleanliness. Fine commentary also. Stay safe & carry on!👍⚙️🔧🍺😊
I have a neighbor with a 92, obs Dodge Ram250 4x4, with a big lift, and it's 5.9 Cummins has 1.275ish million miles on it...! He rebuilt its 5-speed manual transmission at around 500k, and it's getting close to needing it done again... He said he wants to try to make it to 2 million, and will rebuild it when it needs it... He's the only owner of it and never misses any maintenance...! Maintenance matters...!!! My daily driver is a 95 f150 with 300cid/ 5-speed with over 500k... I'm it's 3rd owner, but the first two owners were an 80 year old and his 50 year old son... I bought it in 2010, but have all the receipts back to March of 96(6 months after purchased new)... Thanks for sharing... Keep up your awesomeness...!
To be honest, I thought the water pump bits had been getting a bit stale. Then, this genius. Legitimately the first time I've laughed since my cat died after it was hit by a speeding water pump.
That engine is a gold mine in parts. Good score!! I am so happy your channel really took off. I remember 3 years ago when you had 10,000 subscribers!!! ❤
Buddy of mine had a 12 valve with 950k miles and it was still running. It was so worn out that it would barely pull itself but it it still cranked and ran everyday. They are awesome engines.
My guess is the rings failed some 50k miles + ago, caused poor performance and diesel fuel from worn injectors diluted the oil, accelerating the metal wear. They just drove it with the weak performance and diluted oil long change intervals.
Ditto. Had a port injection v6 gasoline engine that would smoke upon startup only sometimes. Would also misfire at around 6k+ rpm and the exhaust poured out smoke of sorts at that rpm. Ended up going through a quart of oil every 1,000 miles for over 50k miles and finally burnt an exhaust valve. Replaced the exhaust valve and ran another 9k miles before it started running on 5 cylinders again. Replaced the engine but never investigated the bottom end in the old engine. Really wish I had. But I suppose a ring or ringland was completely fubar since it was only burning oil in 1 cylinder, the other 5 looked fine. Hard to justify the money and time to refurbish the engine with such a small defect when other things are rusted/going out on the vehicle at the same time. I can see why they ran it till it was pretty much gone then got rid of the vehicle.
@@rotaryperfection The excessive metal wear. Bad injectors wont atomize the diesel, instead it will squirt it into the cylinder, run past the rings and dilute the oil. Diesel will still provide some lubricity but not enough to protect the high pressure high wear parts. Clean cylinder heads indicate excessive fuel, they should have more carbon on them for 300k miles.
@@rotaryperfection Oil analysis maybe every 3 oil changes north of 200k miles would have sensed fuel in oil and may have gotten another 200-300k out of the engine. But, as I Do Cars stated - roofing troque. Not necessarily put away dry.
Definitely a rebuild machine. Bore, pistons, rings, crank turn, inserts and gasket set will just about do it. Do the valves, check the head and block for flat, naturally. Worth it.
Thanks for letting me see the inside of my engine, since I will not live long enough to see it. My 2005 2500 Ram is not fully broken in yet with only 126,000 miles. The truck runs better every year, unbelievable but true. Thanks
Most diesels will go forever if taken care of. I've owned quite a few but I've had two go over 400k. To be fair one still ran but wouldn't pass emissions in my area and the cost of repairs was more than it was worth. The second was mechanically sound but the electronics took a crap it was at over 500k. Two things that kill them quick are lack of oil changes and performance mods.
@@jessietomich8043 Unfortunately I don’t think some of the modern smaller diesels are built to last. There is a reason Cummins and big truck engines generally have gear driven cams, solid lifters and are heavily built. 1/2 T diesels often have a noodle of timing chain, and one has an oil pump driven by a belt running in motor oil on the back of the crank.
I drive a semi mack truck. It had over 900,000 miles on it. I don't think it was ever rebuilt. I drove it mostly city and oil pressure became a problem. Oil light will come on and than shut off. I figured it was a bad sensor. It was replaced and drove fine until the engine oil light came on again. Oil was full and oil light went out. No problems till the oil light came on again and stayed on. Pull over shut down got another truck. They took truck back to shop drained oil pulled the oil pan off. The oil pick up was clogged with main bearings and in the pan lots of it. I was speechless that the engine lasted as long as it did and didn't throw a rod or whatever. Diesel engines are built tough and very impressive that they last this long when engine starts to destroy itself
My 1992 Pete 379 with a Cat 3406b ran until 1.2 MILLION miles before doing a platinum in-frame. It had tons of blowby and leaked about 2 gallons per week but still ran strong.
That thing he found under the grid heater he took out and said was a ROCK, was most likely the remains of the notorious Grid Heater bolt that rusts off and drops into the intake. So all of that damage he found to the bores was probably caused by the bits of that bolt getting sucked into the combustion chambers. Notice when he dropped the supposed rock onto the floor it sounded like it was metallic not rockallic.
Two profound takeaways from this Blockbuster video: Cummins diesel engines are among the very best ever made and You are capable of the Ironman intro that would make Tony Iomi jealous!
Same mileage on my 2004 Hemi. No smoke, no engine light on, Original spark plus STILL!. Replaced Power Steering rack, front Axles, and now a water pump, fuel pump. Thats all. I drive it every day.
As a Roofer for 30 years now I agree with this message. Yes are trucks get beaten to death and 9 times out of 10 in the wintertime they get used for plowing at least were I live. The best diesels were in the early 90s and the last of the good diesels for Dodge was 2008. They'll become too complicated And restrict. But there is ways around it just depends where you live. But they'll never be the same.
Injector fail in my 03 3500 at 360k that i had bought new...did a 94 12 valve swap.Governor springs fuel plate and mac plug in the pump. Scrapped the fuel shutoff solinoid for a 12$ pull stop.Can bump start it with no batteries. Luv it.
Gotta love those big old "liquorice engines". It's always interesting to see a heavy duty vehicle that worked as intended for a decent mileage instead of Princess garbage that dies at 70 K on your driveway... Thanks for the upload.
Reminds me of the 57 Chevy I blew up when I was 15. I cranked it with the hood up and the oil cap blew out, bounced off the hood (which was at about 45 degrees), and landed in the neighbor's driveway across the street.
My sister had a 6 cyl 57 Ford that when cranked would shoot the dipstick 10 feet in the air... Had a hole in one of the pistons from a ball bearing that got in the cylinder somehow.
@@JohnSmith-pl2bk Your comment has a “Translate to English” button when it’s clearly in English, lol. We’re supposedly at peak AI with LLMs that can pick fights in the comments section and convince the vast majority of people that they’re just some troll living in mom’s basement… yet it can’t understand when you say someone’s joking. Weird times we’re living in. Edit: spacing; This damn thing starts typing the reply as if it’s part of the username.
@@groundcontrol6876 to Major Tom..mighta been ok with a g. Who knows, they hete me so this probably won't even post. Even the h word can kick it out. The pendulum has swung far too far. On another note, it's cool to read about so many loyal Cummins owners here. I knew it going in and the commenters didn't disappoint. You can't fake respect like that 👍
That truck paid for itself 3 time at 300 thousand miles. The last 68 thousand was gravy time. It looked like it would have driven itself into the crusher Great video
Diesel engines for commercial vehicles need to be tough. I once assisted on a project with some Chinese engineers who were working on improving tractor reliability. One of them said "for people living in rural areas, the tractor is what stands between them and starvation in winter." I once worked for a company that did ring design for Cummins (apart from other things). One problem with rings is how do you test them? You make a batch of rings, they pass every dimensional and metallurgical test - but how do you know how they will do 300 000 miles down the road? Minute differences in grain and carbon distribution can have an effect on long term life. Remember the ring takes the firing load and is very thin. Wash fuel over it, stop it lubricating for a few seconds, ring overheats.
@@SmittySmithsoniteOh, I have an old N/A 3-cyl one in a yacht tender I run that complains about low oil pressure every time it’s idling and leaks oil everywhere. The mechanic claims that it can’t be rebuilt anymore and that catastrophic failure and a repower needs to be planned for, but that was two seasons ago. 😂
Cam damage is low quality oil and lots of idle time I think. Lower oil pressure at idle with crappy oil is a disaster in the 5.9s. EDIT: Those broken rings mean fuel got into the oil, and that's probably what killed the cam.
So I picked up a 2015 f250 6.2l with 213,000 miles. It was a fleet vehicle from union pacific railroad. The car fax was 4 pages long. Every, and I mean EVERY 5,000 miles, the truck was at the dealer getting serviced. Oil pressure is as high as when new. Not a spec of grime in the valve covers. All parts replaced with Ford parts. One of the best vehicles to buy used is from a good company that religiously maintains their vehicles.
Keep fuel system in good shape. Run your diesel fuel with an additive. Change your fuel filters religiously. The biggest weakness of the common rail is they designed a shitty fuel filtration system for the high pressure fuel injectors so when it gets bad fuel, the pump gets nuked, the injectors get nuked, and you're lucky to catch it early cause it could stick an injector wide open and melt a piston.
The 5.9 common rail is notorious for breaking rings. Usually when it’s working pretty hard but no one really knows what causes it. Most people believe that Cummins underestimated the cyl pressure of the commune rails. But I’ve also heard that the ring angle was different so the fixed that on the 6.7s came out. The new CK4 rated oils don’t help either! “)
I've torn down some mechanical p7100 5.9 with broken rings too. Last one had broken rings on every cylinder, what killed it is one broke into enough small pieces it wedged between the cylinder wall and piston and put a pretty decent gouge. Was our abused old yard shunt truck and it left a trail of oil all the way into the shop from the breather hose
I enjoyed the tear down. I’ve worn it a few engines in my time. I probably could have kept them going a bit longer, in some cases, if I paid a bit more attention to the ‘little things’ that indicate there is a bigger problem, like low oil pressure [replace the pump? Check for leaks?] or rust in the water [may be time for a flush . . .], low power [check that valve train, already] ----but like most people, it it runs, I’m driving it!
I bought same 5.9 around 300k with same amount of blow by and just turned 500k and celebrated it with new air filter and fuel filter and pulled a 10k pound tractor plus trailer probably another 5K 0ver the Cali/Nevada Seirra mountain range just after a snow storm still trucking strong 💪🏻 so I would not worry about the blow by the engine works just fine 23-28 MPG pulling the load I pulled today averaged 15mpg
I overhauled an 08 24 valve that ran hot and had to replace all 6 pistons and rings. The crank and rods were perfect as was the block. It was a lot more clean than that one. I had a 93 D250 with over 330,000 miles that would start on the second roll every time. It was a HD 2WD. I miss it too!
Lots of hours idling, and oil changes done if there was $20 left over from buying booze and weed, generally every 50k miles. Oil changed because they looked at the dipstick, and it was a few quarts low.
Hi Eric, I'm less than 15 minutes in and already two dozen deep belly laughs in response to your running commentary, subtle comedy gold, thank you, high five.
I have a soft spot for the 5.9, especially the 12 valve in the first Gen. I know a guy that bought a new one back in the day and had over 600K on it. He bought a new 24 valve because the old truck rusted in half and still ran great. The 5.9 IMO was the best ever made, the newer 32s don't come close to these. Great vid Eric.
You said it was a roofing truck. So I’m seeing probably lot of idle time on top of the high miles. Had one at work, dropped a valve. Still ran fairly decent just made some noise. Also with that many miles on it and the truck being rough the company probably was also just run it til it dies. Not going to fix it since they got their use out of it.
dont know which is worse on equipment/trucks - roofers,landscapers or farmers. all are cheap AF, beat trucks within inch of their lives. farmers though generally get 'creative' in finding ways to keep truck running
@@2yenno If a farmer can't fix his truck with duct tape and baling wire, he's not using enough duct tape or baling wire. Boom-Boom❗❗ Thank you, thank you - I'm here all week. (and my name is Eric too, btw) (PS: love the Black Sabbath refs too; of course I would, I'm from Birmingham - the one in England).
I must admit that I'm addicted to my I Do Cars videos. Eric, thank you for your efforts on each and every video. The guitar playing was kinda fuzzy...loved it!
If the owner had kept driving further the engine was about to blow up. By selling the truck to you when they did, that saved the whole engine from further damage. The broken p.o.s three piece thrust bearing would’ve caused a rod to be thrown through the block. The cruddy oil is from the blow by from broken rings filling it with poorly burnt combustion process. As the oil got worse and worse, it likely ripped the three piece bearing apart unless it got damaged when the crank was removed but that didn’t show in the video. I didn’t see the missing piece of the bearing anywhere. Great video! I enjoyed it.
That video totally killed my dreams of being a diesel mechanic! I've seen my share of used diesel oil, but just imagine if you opened up the valve cover or the oil pan on a gasoline engine and the oil looked like this. Can we say "GAME OVER" for that motor lol.
Why would it kill your dreams? High mileage engines die all the time, specially if they were neglected like it seems has become the norm. The more ignorant people that neglect easy, DIY level basic maintenance out there, the more demand for labor on these big ticket repairs will be. Seems like a good time for fulfilling those dreams.
the thing is gas isnt as dusty as a diesel. the black oil is all the soot that the oil caught. gas burns clean enough theres no soot to get caught so most of the darkening is just burnt oil and a bit of contamination. its prohibitively expensive but actually possible to change oil enough in a diesel for it to be clean. a guy tested it, took 5 changes back to back with 15 minutes idle between each change to get the oil actually clean.
That engine held up really well considering the hard life and neglect it went through. Imagine if it had been well cared for and maintained properly. Thanks for explaining the difference between neglect and abuse.
I have only been inside one diesel and around a couple more, but I'ma guess that a fair amount of that wear/damage is a result of not frequent enough oil changes. The broken rings are most certainly from them flopping around in a tapered bore. This engine wore down slowly; it actually looks like it was firing on all cylinders, at least part of the time, with the bad holes contributing less and less to forward progress as more of the combustion event was slipping past the piston/cylinder into the crankcase.
Cold starts break rings. in the middle of north dakota. -12 degrees forgot to plug the truck in to warm it over night. decided to try and start the truck. loud pop and blow by after that. needed to sleeve the engine to get the blow by fixed.
Your air hammer hasn't failed, it just has to have some sort of pressure against the end of it to operate. (My Matco air hammer has always been like that, I think it's designed that way - Can't fire it without a bit in it either.)
Ive got an 03 2500 6 speed truck in my driveway. Never tuned. 471000 and counting. No blowby. And it gets worked. Biggest think with the common rails. Is injectors. They can be bad. And it still run great.
Totally agree. Just resleeve the cylinder bores and get new internal parts. Possibly even a good build for higher horsepower. The cylinder head looks like the valve seats are needing replacement because of oil leaking past them
Thanks, Eric. That was a great teardown. It looks to me like the injectors were dribbling raw fuel on top of the pistons, which would produce more heat, especially since it was a turbo motor. This, in turn, would create more carbon in the oil, to the point that it was no longer oil.
Great job! I thought that was an SC 430 back there... Nice. Couple very brief thoughts... #1, get a couple gallons of the "bulk" WD-40... Pour that in a pan & dunk your dirty tools in it.... They will come nice & clean really easy.... #2, I get your comments about "people driving a truck they don't own"... I work for a big company. We have trucks. Half the time, the techs are like "this needs an oil change, this needs this, this needs that..." And it's our fleet management maintenance department sitting there going "Drive it, it's fine" or "We're only doing oil changes every 18k now" or whatever..... I know, it's fun to pick on the scuzzy techs, and complain that they don't care about nice vehicles that they don't own... I know. Have your fun, Eric, it's fine. I'm just pointing out, when an accountant on the 87th floor of a money tower somewhere decides "We're spending WAAAY too much on vehicle maintenance...", and he clamps a few sets of vice grips on the budget for vehicle maintenance..... And then a vehicle repair mechanic retires, and they don't replace him, so then it takes 3 weeks to even get your truck in the door to be looked at..... THOSE decisions have more to do with "why work trucks fail" than us scuzzy techs who drive them.... Just saying.... Anyways, great job.
We ran the B5.9 and ISB's in class 7 Freightliner straight trucks. Really the only difference was higher capacity oil pans than what the pickup versions use. None of them needed to be rebuilt before 500K miles, and even though it was out of frame to rebuild them it was still fairly inexpensive to do.
I had my 05 5.9 cummins rebuilt back in 2010. Same exact issue. No.3 piston the rings were gone exactly like this. No. 4 and 5 looked like the top of the pistons had tiny hammer marks all over the sides near the bore. The injectors had a failure and over fueled and it got hot, cracked the rings and the pock marks on the pistons were tiny molten aluminum bits from the pistons. This was at 102k miles. Of course, cummins flat out refused to warranty it since it was 2k over. We had to bore it .040 to clean up the cylinders. New cam, valve train, pistons and injectors it was running like a top again. We reused the rods, crank and Turbo. Bad injectors will cause this. The shop also said running too much timing will do the same.
Ran across you under recommended and I've to say you have both good charisma with a touch of humor. I'm always curious to of why did it fail. Your ending analysis to me is impressive.
Cam and tappet damage may be from misadjusted rocker arms. Sometimes bad injectors will sound like rocker arms tapping excessively load and people adjust them. May have been adjusted improperly when injectors were replaced
This is what happens when you have a 3/4 ton truck that has a poor maintenance history doing the work of a 1 ton truck or bigger. The 5.9L Cummins is a work horse but you HAVE TO DO MAINTENANCE. oil changes, compression checks, fuel pressure checks, oil contaminants checks and coolant checks and flushes. Man it breaks my heart to see such an amazing engine get completely neglected to this level of failure. Great Video though.
I have heard that if the crank case breather is stuck closed it will keep pressure from venting. Some is normal & if it is not escaping it’s an issue. Should’ve gotten compression readings, and a video of it cranking with fuel turned off. If it has a compression skip it’s a dead cylinder. It’s new enough it’ll have a cylinder contribution test to show its blown up.
That year is notorious for breaking piston rings. It had to do with the bowl design in the Piston. 04.5- 07 trucks had that piston design. The 2003 common rail trucks have a different piston design and don't have a problem breaking rings
I'm intrigued that there is still evidence of some crosshatch in bores after the combined abuse + mileage. Impressive. I wonder what a well cared for one looks like at that mileage.
Boo! Biggest fan.... Landed on your channel recently and am catching up by watching old videos - focusing on engines I have owned. J35 was crazy! I loved mine - ran like a top. How someone destroyed one is beyond the beyond.... EA888 - still using in a Passat - the odd chevy small block - enjoy your easy going demeanor and interesting way of overcoming obstacles. Will definitely buy a piston nugget some time in the future.
The reason cylinder 6, and sometimes 5, tends to be and issue for older 5.9's is because coolant doesn't flow well keeping the heat towards the back of the block. A lot of people add a bypass to it to help with longevity so the rear of the block doesn't cook as much. Things inside probably heated and cooled to many times, tempering the metal. And apprentices don't want to wait for a diesel to heat up when its check out time lol.
Not too long ago, I was leaving the dump and saw a roofer with a dump trailer that was having problems. The trailer wouldn’t dump. It was full to the brim with shingles. I can’t remember how many squares he said were in the trailer but it was well over the capacity of the trailer, maybe double. I gave him a couple oversized fuses because his had blown and went on my way.
I'm waiting for the engine that makes him break down and get a ridge reamer. I had my hopes up that at 368k miles this would be the one. Maybe next week.
I wonder if it had a hard start condition at some point. Then in an effort to start someone used waaaaay too much starting fluid. That's the only time I've personally seen broken rings in a diesel. Usually it mushroom the ring lands though. Those are steel rings lands it looks like so may not be evident.
You mentioned overloading a trailer years back. I took a load to the dump from a house. I bought 19,000+ pound on the trailer. I was driving a 1 ton suburban and the lady looked out the window at the scale. She said you’re way over. weight on those tags on the truck and i look again their car tags there’s no weight limit and car tags. That’s why I run car tags on SUVs.
Looking at the level of build up, my initial reaction is extended OCIs, especially with that being a roofing/fleet vehicle. Staying on top of the oil changes makes a huge difference.
I've always heard on the 5.9s to not let them low idle, but to set it to high idle at ~1,000-1,100rpm otherwise the #6 cylinder will just beat itself into the grave. But either bore over those cylinders or drop new liners in, polish the crank, new cam pistons and waterpump. Maybe new oil pump for insurance, plus injectors and that engine is good to go for a very long time. Swap it into something else even.
that rock was sitting under inj #4 i saw it. WHEW that cam shows poor oil change interval. cheap oil filters and oil, possibly cheap air filter. the bore scratches is from cylinder washing from extended idling/leaky injectors (early CR cummins known to have leaky injectors) the broken rings could be caused by the leaky injectors as well.
the black sabbath bit was hilarious lmao
The amount of effort to continue the joke was outstanding.
Time stamp homie..?
@@tacomas9602 26:50
@@joshuafunk9438it really was
@@glenslick2774❤ savage, I usually just listen to these like podcasts 😂much appreciated
9/8/24..am not a mechanic or diesel aware person, but at 80 years, am much impressed with your purpose of educating/showing all viewers details of our gas or diesel engine components. Enjoy yur channel, camera positions, lighting & shop cleanliness. Fine commentary also. Stay safe & carry on!👍⚙️🔧🍺😊
I have a neighbor with a 92, obs Dodge Ram250 4x4, with a big lift, and it's 5.9 Cummins has 1.275ish million miles on it...! He rebuilt its 5-speed manual transmission at around 500k, and it's getting close to needing it done again... He said he wants to try to make it to 2 million, and will rebuild it when it needs it... He's the only owner of it and never misses any maintenance...! Maintenance matters...!!! My daily driver is a 95 f150 with 300cid/ 5-speed with over 500k... I'm it's 3rd owner, but the first two owners were an 80 year old and his 50 year old son... I bought it in 2010, but have all the receipts back to March of 96(6 months after purchased new)... Thanks for sharing... Keep up your awesomeness...!
Awesome trucks there, straight-six engines are behemoths to be messed with when it comes to reliability. 😎
Gotta love the old Ford 4.9 big 6 that can keep up with reliability of some of the most reliable engines ever made!!!
@@myk1_sp "straight-six engines are behemoths to be messed with when it comes to reliability."
BMW has entered the chat.
@computernaut The engines from BMW on their own aren't bad, it's the electronics around them that seem to fail first.
@@computernaut M57
To be honest, I thought the water pump bits had been getting a bit stale. Then, this genius. Legitimately the first time I've laughed since my cat died after it was hit by a speeding water pump.
Water pumps should obey speed limits too!
Eric is really starting to get a fast pitching arm chucking those water pumps. I mean hell, he hit your cat from the shop.
i hope Tony Iommi makes another guest appearance some time in the future
That engine is a gold mine in parts. Good score!! I am so happy your channel really took off. I remember 3 years ago when you had 10,000 subscribers!!! ❤
Yeah making him be known on Linked In as well.
Buddy of mine had a 12 valve with 950k miles and it was still running. It was so worn out that it would barely pull itself but it it still cranked and ran everyday. They are awesome engines.
My guess is the rings failed some 50k miles + ago, caused poor performance and diesel fuel from worn injectors diluted the oil, accelerating the metal wear. They just drove it with the weak performance and diluted oil long change intervals.
Ditto. Had a port injection v6 gasoline engine that would smoke upon startup only sometimes. Would also misfire at around 6k+ rpm and the exhaust poured out smoke of sorts at that rpm. Ended up going through a quart of oil every 1,000 miles for over 50k miles and finally burnt an exhaust valve. Replaced the exhaust valve and ran another 9k miles before it started running on 5 cylinders again. Replaced the engine but never investigated the bottom end in the old engine. Really wish I had. But I suppose a ring or ringland was completely fubar since it was only burning oil in 1 cylinder, the other 5 looked fine. Hard to justify the money and time to refurbish the engine with such a small defect when other things are rusted/going out on the vehicle at the same time. I can see why they ran it till it was pretty much gone then got rid of the vehicle.
So what are the signs that the injectors are wearing down?
@@rotaryperfection The excessive metal wear. Bad injectors wont atomize the diesel, instead it will squirt it into the cylinder, run past the rings and dilute the oil. Diesel will still provide some lubricity but not enough to protect the high pressure high wear parts. Clean cylinder heads indicate excessive fuel, they should have more carbon on them for 300k miles.
@sc5015 What I mean is how to tell how the injectors are going bad before hand?
@@rotaryperfection Oil analysis maybe every 3 oil changes north of 200k miles would have sensed fuel in oil and may have gotten another 200-300k out of the engine. But, as I Do Cars stated - roofing troque. Not necessarily put away dry.
Definitely a rebuild machine. Bore, pistons, rings, crank turn, inserts and gasket set will just about do it. Do the valves, check the head and block for flat, naturally. Worth it.
New cam or regrind the old one
Don't forget the water pump.
@@KevinSmith-qi5yn We can reuse that.
Buying a 12v also might help
Thanks for letting me see the inside of my engine, since I will not live long enough to see it. My 2005 2500 Ram is not fully broken in yet with only 126,000 miles. The truck runs better every year, unbelievable but true. Thanks
I sold my 5.9 ram 2500 at 439K years ago. It is still running today at 570K
If you take care of them, they last.
Most diesels will go forever if taken care of. I've owned quite a few but I've had two go over 400k. To be fair one still ran but wouldn't pass emissions in my area and the cost of repairs was more than it was worth. The second was mechanically sound but the electronics took a crap it was at over 500k. Two things that kill them quick are lack of oil changes and performance mods.
million mile engines if taken care of and driven like their suppose to be. 😊
I sure hope it would. Diesels are good for 800K+
@@jessietomich8043 Unfortunately I don’t think some of the modern smaller diesels are built to last. There is a reason Cummins and big truck engines generally have gear driven cams, solid lifters and are heavily built. 1/2 T diesels often have a noodle of timing chain, and one has an oil pump driven by a belt running in motor oil on the back of the crank.
I drive a semi mack truck. It had over 900,000 miles on it. I don't think it was ever rebuilt. I drove it mostly city and oil pressure became a problem. Oil light will come on and than shut off. I figured it was a bad sensor. It was replaced and drove fine until the engine oil light came on again. Oil was full and oil light went out. No problems till the oil light came on again and stayed on. Pull over shut down got another truck. They took truck back to shop drained oil pulled the oil pan off. The oil pick up was clogged with main bearings and in the pan lots of it. I was speechless that the engine lasted as long as it did and didn't throw a rod or whatever. Diesel engines are built tough and very impressive that they last this long when engine starts to destroy itself
My 1992 Pete 379 with a Cat 3406b ran until 1.2 MILLION miles before doing a platinum in-frame. It had tons of blowby and leaked about 2 gallons per week but still ran strong.
That thing he found under the grid heater he took out and said was a ROCK, was most likely the remains of the notorious Grid Heater bolt that rusts off and drops into the intake. So all of that damage he found to the bores was probably caused by the bits of that bolt getting sucked into the combustion chambers. Notice when he dropped the supposed rock onto the floor it sounded like it was metallic not rockallic.
That was an issue starting in 07.5 with the redesign of the grid heater on 6.7's. Never an issue on the 5.9's
Two profound takeaways from this Blockbuster video: Cummins diesel engines are among the very best ever made and You are capable of the Ironman intro that would make Tony Iomi jealous!
Same mileage on my 2004 Hemi.
No smoke, no engine light on, Original spark plus STILL!.
Replaced Power Steering rack, front Axles, and now a water pump, fuel pump.
Thats all.
I drive it every day.
As a Roofer for 30 years now I agree with this message. Yes are trucks get beaten to death and 9 times out of 10 in the wintertime they get used for plowing at least were I live. The best diesels were in the early 90s and the last of the good diesels for Dodge was 2008. They'll become too complicated And restrict. But there is ways around it just depends where you live. But they'll never be the same.
Injector fail in my 03 3500 at 360k that i had bought new...did a 94 12 valve swap.Governor springs fuel plate and mac plug in the pump.
Scrapped the fuel shutoff solinoid for a 12$ pull stop.Can bump start it with no batteries.
Luv it.
Oh man I love the pull shutoff idea!!!
Gotta love those big old "liquorice engines".
It's always interesting to see a heavy duty vehicle that worked as intended for a decent mileage instead of Princess garbage that dies at 70 K on your driveway... Thanks for the upload.
Reminds me of the 57 Chevy I blew up when I was 15. I cranked it with the hood up and the oil cap blew out, bounced off the hood (which was at about 45 degrees), and landed in the neighbor's driveway across the street.
Good times
LOL 😂 👍
Like a ROCK.
My sister had a 6 cyl 57 Ford that when cranked would shoot the dipstick 10 feet in the air... Had a hole in one of the pistons from a ball bearing that got in the cylinder somehow.
@@irvulture8662 LOL 😂 👍
Its so nice to see the teardown of a diesel that doesn't have a speck of carbon in the intake
You jest....
@@JohnSmith-pl2bk Your comment has a “Translate to English” button when it’s clearly in English, lol. We’re supposedly at peak AI with LLMs that can pick fights in the comments section and convince the vast majority of people that they’re just some troll living in mom’s basement… yet it can’t understand when you say someone’s joking. Weird times we’re living in. Edit: spacing; This damn thing starts typing the reply as if it’s part of the username.
@@groundcontrol6876it's a scary time, as well.
@@groundcontrol6876 to Major Tom..mighta been ok with a g. Who knows, they hete me so this probably won't even post. Even the h word can kick it out. The pendulum has swung far too far.
On another note, it's cool to read about so many loyal Cummins owners here. I knew it going in and the commenters didn't disappoint. You can't fake respect like that 👍
That truck paid for itself 3 time at 300 thousand miles. The last 68 thousand was gravy time. It looked like it would have driven itself into the crusher Great video
Didn't expect a Black Sabbath reference in a Cummins teardown video. Mad props for that one, Eric
5.9l 24v Common rail will always have a special place in my heart
Mine is the 6.0 POWERSTROKE. Beautiful engine when fixed RIGHT….
Diesel engines for commercial vehicles need to be tough. I once assisted on a project with some Chinese engineers who were working on improving tractor reliability. One of them said "for people living in rural areas, the tractor is what stands between them and starvation in winter."
I once worked for a company that did ring design for Cummins (apart from other things). One problem with rings is how do you test them? You make a batch of rings, they pass every dimensional and metallurgical test - but how do you know how they will do 300 000 miles down the road? Minute differences in grain and carbon distribution can have an effect on long term life. Remember the ring takes the firing load and is very thin. Wash fuel over it, stop it lubricating for a few seconds, ring overheats.
Fleet engines! They are tough. Gas and diesel ones (are supposed to be. Used to all be!)
Fleet engines! Need to be tough!
I wonder if he could get ahold of a 2 stroke detroit.... that would be an intresting teardown.
I agree 100%
de boss garage has one..
Those don't fail! 😁
@@SmittySmithsoniteOh, I have an old N/A 3-cyl one in a yacht tender I run that complains about low oil pressure every time it’s idling and leaks oil everywhere. The mechanic claims that it can’t be rebuilt anymore and that catastrophic failure and a repower needs to be planned for, but that was two seasons ago. 😂
@@erichlippert3433
DD two strokes slobber oil, especially if they're run at lower rpm. Doesn't necessarily indicate trouble.
I have been using your “If it doesn’t, it should’ve” line. A lot. Thank you
The It's fine for everything crazy gets used alot. Lol
Me too! It's so universal I love it
One of your best water pump skit 🤣. Great guitar riff too 👍
🎸🎶😂
It worked for 370,000 miles. Many cars don’t run that many miles before falling apart. Great video. Thank you.
But this isn't a car, it's a truck diesel that regularly/normally gets twice that.
Cam damage is low quality oil and lots of idle time I think. Lower oil pressure at idle with crappy oil is a disaster in the 5.9s. EDIT: Those broken rings mean fuel got into the oil, and that's probably what killed the cam.
I totally approve of the guitar. Want to see more.
Can't go wrong with an Ibanez RG
So I picked up a 2015 f250 6.2l with 213,000 miles. It was a fleet vehicle from union pacific railroad. The car fax was 4 pages long. Every, and I mean EVERY 5,000 miles, the truck was at the dealer getting serviced. Oil pressure is as high as when new. Not a spec of grime in the valve covers. All parts replaced with Ford parts. One of the best vehicles to buy used is from a good company that religiously maintains their vehicles.
Youre ALWAYS gambling when you buy a company vehicle, regardless if it was maintained I promise you as a company truck people beat the fuck out of it
Oil and filters is so much cheaper than engines. Thanks Eric.
This engine is definitely a builder's special for someone.
I bought a 05 ram 5.9L with 155k miles from my buddy. Runs like a champ. Going to do what it takes to keep it on the road for many years to come.
Keep fuel system in good shape. Run your diesel fuel with an additive. Change your fuel filters religiously. The biggest weakness of the common rail is they designed a shitty fuel filtration system for the high pressure fuel injectors so when it gets bad fuel, the pump gets nuked, the injectors get nuked, and you're lucky to catch it early cause it could stick an injector wide open and melt a piston.
The 5.9 common rail is notorious for breaking rings. Usually when it’s working pretty hard but no one really knows what causes it. Most people believe that Cummins underestimated the cyl pressure of the commune rails. But I’ve also heard that the ring angle was different so the fixed that on the 6.7s came out. The new CK4 rated oils don’t help either! “)
so if i owned this engine, would i just get a better common rail or what
@@2yenno😂
@@2yenno looks like the fuel filters arent as good as they should be. look into upgrades for that, itll solve that problem
@@bradhaines3142 ah, thanks
I've torn down some mechanical p7100 5.9 with broken rings too. Last one had broken rings on every cylinder, what killed it is one broke into enough small pieces it wedged between the cylinder wall and piston and put a pretty decent gouge. Was our abused old yard shunt truck and it left a trail of oil all the way into the shop from the breather hose
One of the best engines ever built.
Wasn't expecting a Cummins! Definitely down for this.
Edit: Holy blowby Batman!
this is my favorite channel ever
I enjoyed the tear down. I’ve worn it a few engines in my time. I probably could have kept them going a bit longer, in some cases, if I paid a bit more attention to the ‘little things’ that indicate there is a bigger problem, like low oil pressure [replace the pump? Check for leaks?] or rust in the water [may be time for a flush . . .], low power [check that valve train, already] ----but like most people, it it runs, I’m driving it!
I bought same 5.9 around 300k with same amount of blow by and just turned 500k and celebrated it with new air filter and fuel filter and pulled a 10k pound tractor plus trailer probably another 5K 0ver the Cali/Nevada Seirra mountain range just after a snow storm still trucking strong 💪🏻 so I would not worry about the blow by the engine works just fine 23-28 MPG pulling the load I pulled today averaged 15mpg
I overhauled an 08 24 valve that ran hot and had to replace all 6 pistons and rings. The crank and rods were perfect as was the block. It was a lot more clean than that one. I had a 93 D250 with over 330,000 miles that would start on the second roll every time. It was a HD 2WD. I miss it too!
Lots of hours idling, and oil changes done if there was $20 left over from buying booze and weed, generally every 50k miles. Oil changed because they looked at the dipstick, and it was a few quarts low.
You're a comedic genius!
Hi Eric, I'm less than 15 minutes in and already two dozen deep belly laughs in response to your running commentary, subtle comedy gold, thank you, high five.
I'll say thank you Eric for taking the time to clean all those parts, and yes the Black Sabbeth thing was cool.
Thanks for taking the biberty to bless us with your guitar skills.
I have a soft spot for the 5.9, especially the 12 valve in the first Gen. I know a guy that bought a new one back in the day and had over 600K on it. He bought a new 24 valve because the old truck rusted in half and still ran great. The 5.9 IMO was the best ever made, the newer 32s don't come close to these. Great vid Eric.
You said it was a roofing truck. So I’m seeing probably lot of idle time on top of the high miles.
Had one at work, dropped a valve. Still ran fairly decent just made some noise.
Also with that many miles on it and the truck being rough the company probably was also just run it til it dies. Not going to fix it since they got their use out of it.
dont know which is worse on equipment/trucks - roofers,landscapers or farmers. all are cheap AF, beat trucks within inch of their lives. farmers though generally get 'creative' in finding ways to keep truck running
@@harveylong5878 bailing wire and duct tape, they sometimes take better care of their trucks.
@@2yenno
If a farmer can't fix his truck with duct tape and baling wire,
he's not using enough duct tape or baling wire.
Boom-Boom❗❗
Thank you, thank you - I'm here all week.
(and my name is Eric too, btw)
(PS: love the Black Sabbath refs too;
of course I would, I'm from Birmingham
- the one in England).
@@ericdunn555 hahaha, very true
Lol this thing is rebuildable. Thank you Eric. It reminded me of a 327 I had as a 17 year old kid.
It being a Diesel AND a service truck 386000 miles is probably equal to close to 450000-500000 miles counting idling time
theres a reason most trucks these days also have a time for operating hours
Since I work Saturdays and by 7pm I shower eat and fall asleep.. this has now become my Sunday morning routine. Thank you
Your water pump bits keep getting better
I bet it's fun working for Eric : )
This is a classic example of running a diesel engine on short trips and not enough oil changes.
I must admit that I'm addicted to my I Do Cars videos. Eric, thank you for your efforts on each and every video. The guitar playing was kinda fuzzy...loved it!
If the owner had kept driving further the engine was about to blow up. By selling the truck to you when they did, that saved the whole engine from further damage.
The broken p.o.s three piece thrust bearing would’ve caused a rod to be thrown through the block.
The cruddy oil is from the blow by from broken rings filling it with poorly burnt combustion process.
As the oil got worse and worse, it likely ripped the three piece bearing apart unless it got damaged when the crank was removed but that didn’t show in the video. I didn’t see the missing piece of the bearing anywhere.
Great video! I enjoyed it.
That video totally killed my dreams of being a diesel mechanic!
I've seen my share of used diesel oil, but just imagine if you opened up the valve cover or the oil pan on a gasoline engine and the oil looked like this. Can we say "GAME OVER" for that motor lol.
Why would it kill your dreams? High mileage engines die all the time, specially if they were neglected like it seems has become the norm. The more ignorant people that neglect easy, DIY level basic maintenance out there, the more demand for labor on these big ticket repairs will be. Seems like a good time for fulfilling those dreams.
the thing is gas isnt as dusty as a diesel. the black oil is all the soot that the oil caught. gas burns clean enough theres no soot to get caught so most of the darkening is just burnt oil and a bit of contamination.
its prohibitively expensive but actually possible to change oil enough in a diesel for it to be clean. a guy tested it, took 5 changes back to back with 15 minutes idle between each change to get the oil actually clean.
That engine held up really well considering the hard life and neglect it went through. Imagine if it had been well cared for and maintained properly. Thanks for explaining the difference between neglect and abuse.
Thanks Eric. I didn’t know you played the guitar. Well done.
I'm a non-gearhead and really love your channel. There's no question that "blue" is a natural in front of the camera!😆
Another entertaining and educational Saturday night spent watching I Do Cars tear down an engine. Thanks as always Eric!
Thanks!
Thank you!
26:49 - Ok, you are officially having way too much fun 😂
I have only been inside one diesel and around a couple more, but I'ma guess that a fair amount of that wear/damage is a result of not frequent enough oil changes. The broken rings are most certainly from them flopping around in a tapered bore. This engine wore down slowly; it actually looks like it was firing on all cylinders, at least part of the time, with the bad holes contributing less and less to forward progress as more of the combustion event was slipping past the piston/cylinder into the crankcase.
Cold starts break rings. in the middle of north dakota. -12 degrees forgot to plug the truck in to warm it over night. decided to try and start the truck. loud pop and blow by after that. needed to sleeve the engine to get the blow by fixed.
@3:01 - I hate to disagree with you, but I just might be your biggest fan.
Your air hammer hasn't failed, it just has to have some sort of pressure against the end of it to operate. (My Matco air hammer has always been like that, I think it's designed that way - Can't fire it without a bit in it either.)
I’ve seen this one in the background for a while and I’m happy to see it being olened
Ive got an 03 2500 6 speed truck in my driveway. Never tuned. 471000 and counting. No blowby. And it gets worked. Biggest think with the common rails. Is injectors. They can be bad. And it still run great.
I have a 03 cummins 5.9 230,000 miles RUNS ABSOLUTELY PERFECT!!!
Fantastic teardown as usual. Im here to say just how awesome the water pump skit was in this one. Well done!
Perfect number of fast forwards. Great little jokes! I love watching your videos! Good luck to you!
Super impressive that it still ran with that much blow by and 5 cylinders! Wow!
Starting fluid is great for breaking rings. Possibility.
Crazy thing is that you could rebuild this engine and get another couple hundred thousand miles out of it
Why is that crazy
@@TheMainLead maybe insinuating that other engines couldnt do that
@@2yennolots of engines can do that. But it’s not worth it for do on nearly all of them.
Totally agree. Just resleeve the cylinder bores and get new internal parts. Possibly even a good build for higher horsepower. The cylinder head looks like the valve seats are needing replacement because of oil leaking past them
@@FishFind3000 I guess so. also that these engines have a cult-like following. good engines.
Thanks for the Iron Man bit! Always enjoy the videos!
Thanks, Eric. That was a great teardown. It looks to me like the injectors were dribbling raw fuel on top of the pistons, which would produce more heat, especially since it was a turbo motor. This, in turn, would create more carbon in the oil, to the point that it was no longer oil.
Great job!
I thought that was an SC 430 back there... Nice.
Couple very brief thoughts... #1, get a couple gallons of the "bulk" WD-40... Pour that in a pan & dunk your dirty tools in it.... They will come nice & clean really easy....
#2, I get your comments about "people driving a truck they don't own"... I work for a big company. We have trucks. Half the time, the techs are like "this needs an oil change, this needs this, this needs that..." And it's our fleet management maintenance department sitting there going "Drive it, it's fine" or "We're only doing oil changes every 18k now" or whatever.....
I know, it's fun to pick on the scuzzy techs, and complain that they don't care about nice vehicles that they don't own... I know. Have your fun, Eric, it's fine. I'm just pointing out, when an accountant on the 87th floor of a money tower somewhere decides "We're spending WAAAY too much on vehicle maintenance...", and he clamps a few sets of vice grips on the budget for vehicle maintenance..... And then a vehicle repair mechanic retires, and they don't replace him, so then it takes 3 weeks to even get your truck in the door to be looked at..... THOSE decisions have more to do with "why work trucks fail" than us scuzzy techs who drive them.... Just saying....
Anyways, great job.
We ran the B5.9 and ISB's in class 7 Freightliner straight trucks. Really the only difference was higher capacity oil pans than what the pickup versions use. None of them needed to be rebuilt before 500K miles, and even though it was out of frame to rebuild them it was still fairly inexpensive to do.
I had my 05 5.9 cummins rebuilt back in 2010. Same exact issue. No.3 piston the rings were gone exactly like this. No. 4 and 5 looked like the top of the pistons had tiny hammer marks all over the sides near the bore.
The injectors had a failure and over fueled and it got hot, cracked the rings and the pock marks on the pistons were tiny molten aluminum bits from the pistons.
This was at 102k miles. Of course, cummins flat out refused to warranty it since it was 2k over.
We had to bore it .040 to clean up the cylinders. New cam, valve train, pistons and injectors it was running like a top again. We reused the rods, crank and Turbo.
Bad injectors will cause this. The shop also said running too much timing will do the same.
That's crazy if maintained well they should last way longer unless your getting bad fuel. My oem injectors on my 04.5 ram 3500 lasted 227k
Ran across you under recommended and I've to say you have both good charisma with a touch of humor. I'm always curious to of why did it fail. Your ending analysis to me is impressive.
Loved the Black Sabbath water pump skit!!!! No more tears for me, 'cause I'm going off the rails on a crazy train!
Cam and tappet damage may be from misadjusted rocker arms. Sometimes bad injectors will sound like rocker arms tapping excessively load and people adjust them. May have been adjusted improperly when injectors were replaced
Oh btw I have an 06 3500 5.9 with almost 600k and still running strong
This is what happens when you have a 3/4 ton truck that has a poor maintenance history doing the work of a 1 ton truck or bigger. The 5.9L Cummins is a work horse but you HAVE TO DO MAINTENANCE. oil changes, compression checks, fuel pressure checks, oil contaminants checks and coolant checks and flushes. Man it breaks my heart to see such an amazing engine get completely neglected to this level of failure. Great Video though.
I have heard that if the crank case breather is stuck closed it will keep pressure from venting. Some is normal & if it is not escaping it’s an issue.
Should’ve gotten compression readings, and a video of it cranking with fuel turned off. If it has a compression skip it’s a dead cylinder.
It’s new enough it’ll have a cylinder contribution test to show its blown up.
That year is notorious for breaking piston rings. It had to do with the bowl design in the Piston. 04.5- 07 trucks had that piston design. The 2003 common rail trucks have a different piston design and don't have a problem breaking rings
Great video thanks for taking the time to put it together...rock on!
I'm intrigued that there is still evidence of some crosshatch in bores after the combined abuse + mileage. Impressive. I wonder what a well cared for one looks like at that mileage.
I noticed that also. if only all engines were as tough as a 5.9 life would be great
It had it Cummins!
I guess we couldn't Dodge that pun
Just keeps getting better
Boo! Biggest fan.... Landed on your channel recently and am catching up by watching old videos - focusing on engines I have owned. J35 was crazy! I loved mine - ran like a top. How someone destroyed one is beyond the beyond.... EA888 - still using in a Passat - the odd chevy small block - enjoy your easy going demeanor and interesting way of overcoming obstacles. Will definitely buy a piston nugget some time in the future.
The reason cylinder 6, and sometimes 5, tends to be and issue for older 5.9's is because coolant doesn't flow well keeping the heat towards the back of the block. A lot of people add a bypass to it to help with longevity so the rear of the block doesn't cook as much.
Things inside probably heated and cooled to many times, tempering the metal. And apprentices don't want to wait for a diesel to heat up when its check out time lol.
Not too long ago, I was leaving the dump and saw a roofer with a dump trailer that was having problems. The trailer wouldn’t dump. It was full to the brim with shingles. I can’t remember how many squares he said were in the trailer but it was well over the capacity of the trailer, maybe double. I gave him a couple oversized fuses because his had blown and went on my way.
That is some motor, made for what it was meant to do, so hats off to the designers. Good old push-rods.
I'm waiting for the engine that makes him break down and get a ridge reamer. I had my hopes up that at 368k miles this would be the one. Maybe next week.
I wonder if it had a hard start condition at some point. Then in an effort to start someone used waaaaay too much starting fluid. That's the only time I've personally seen broken rings in a diesel. Usually it mushroom the ring lands though. Those are steel rings lands it looks like so may not be evident.
You mentioned overloading a trailer years back. I took a load to the dump from a house. I bought 19,000+ pound on the trailer. I was driving a 1 ton suburban and the lady looked out the window at the scale. She said you’re way over. weight on those tags on the truck and i look again their car tags there’s no weight limit and car tags. That’s why I run car tags on SUVs.
The letter of the law....not the intent.
We all feel safer...
Looking at the level of build up, my initial reaction is extended OCIs, especially with that being a roofing/fleet vehicle. Staying on top of the oil changes makes a huge difference.
I've always heard on the 5.9s to not let them low idle, but to set it to high idle at ~1,000-1,100rpm otherwise the #6 cylinder will just beat itself into the grave. But either bore over those cylinders or drop new liners in, polish the crank, new cam pistons and waterpump. Maybe new oil pump for insurance, plus injectors and that engine is good to go for a very long time. Swap it into something else even.
Great video and explanation, Eric. Hilarious as always.
that rock was sitting under inj #4 i saw it. WHEW that cam shows poor oil change interval. cheap oil filters and oil, possibly cheap air filter. the bore scratches is from cylinder washing from extended idling/leaky injectors (early CR cummins known to have leaky injectors) the broken rings could be caused by the leaky injectors as well.
Or running hard on cold engine.