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I just had engine failure the day before Thanksgiving(Broken crank). 59,800 miles. I am deleted and tuned. New engine is on the way. I will also be deleting the EGR at the same time. Sh*t happens! Rebuild and hope it doesn't happen again!
 

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Discussion Starter · #89 ·
It knocked a little before it broke. Noticed it that morning and broke about 15 min into the drive home.
What’s the build date on the sticker in the drive door frame?

Also, curious which crankshaft part number you have. If you can get the number off your engine (right on top via a white sticker, juts left of your Cummins logo plate) you can put it in or Cummins website for all the part #s in your particular engine.
 

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What’s the build date on the sticker in the drive door frame?

Also, curious which crankshaft part number you have. If you can get the number off your engine (right on top via a white sticker, juts left of your Cummins logo plate) you can put it in or Cummins website for all the part #s in your particular engine.
I will check when I get the truck back.
 

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I have a 2017 XD with 134,000 miles. I change oil every 5K and fuel filters every 10K. Dielectric grease on electrical connectors. Let turbo cool down before turning motor off. Diesel additive in tank at each fill. I've experienced no failures of any kind. Best truck I've ever owned.
 

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I have a 2017 XD with 134,000 miles. I change oil every 5K and fuel filters every 10K. Dielectric grease on electrical connectors. Let turbo cool down before turning motor off. Diesel additive in tank at each fill. I've experienced no failures of any kind. Best truck I've ever owned.
I’m with ya man, best truck I’ve owned by far, yes I had two injesctors fail on me simutaniously lol, but other then that been amazing
 

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This might sound like a stupid question, but is there a way to bulletproof the bottom end of these motors? I just bought a '16 XD Cummins a week ago with 187,000 km from original owner. It has been deleted but otherwise stock.

Could a fella buy a shortblock or whole motor that just has spun bearings and build it? I can't be without a truck. It would be nice to have a built shortblock ready in case the catastrophic happens.

I can't seem to find an aftermarket crankshaft or much else for these trucks but haven't been looking long. I am surprised I haven't found an upgraded rotating assembly of crank/rods/pistons. Is this available? Any ideas?

Thanks.
 

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I can't seem to find an aftermarket crankshaft or much else for these trucks but haven't been looking long
Unfortunately, that is because there are not any-nothing at all. This engine is now an "orphan" with probably only 16,000-20,000 or so sold over the 4 year run. Very little aftermarket support for even stock, basic parts like head bolts. FelPro makes those... Nothing performance whatsoever (not that the head bolts have been a problem for anyone by the way...never seen a post about a bad head gasket.) Good luck finding much in the way of used engines or shortblocks on Ebay for example...they are just not there in any number and expensive!!

Yes, there have been a number of busted crankshafts, but it does not appear to be a high percentage. The good news for you is that you have have ~116,000 miles and still running strong. You are deleted so not dumping all the soot down the motor and you are free of all the emissions issues with DEF...though mybe not EGR cooler. Run high quality 5w-40 syn oil and change your filters regularly and keep ridin' the train. Only other option is to sell it really if it is that much of a worry or problem if it does go down. It is not a normal Cummins with lots of parts availability. Not many ISV's sold to the school bus or motor home market either. It is what it is....
 

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Thanks for the reply Vann. Appreciate it. It's not enough of a concern to sell it, I just didn't mind spending a few bucks to upgrade it or have some spare parts for it. I will be keeping an eye at the auctions for a smashed or stolen truck and maybe have my own supply of spare parts for whatever I need.
Part of my frustration is I can't seem to find numbers anywhere on percentages of problem motors/transmissions. If 95% of them are good, I won't give it another thought, If 50/50 have problems long term, then that's a different story.
 

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I can't imagine it is anywhere close to 50/50. Yes there have been a number of posts here about broken crankshafts and such but not dozens. I would think (just wild speculation from being on the forum for a while) it is much closer to you 95/5 threshold.

One member on here (who sadly has since left) had 2 XD's....one he bought at auction post flood a few years back. Completely underwater and he rebuilt the whole thing and had it on the road. Wrecked trucks are out there, but the engines go pretty fast and are expensive. The underwater thing was probably a different story....

I think there have been a number of spun bearings as stated earlier in this thread. (e.g. problems start with knocking before the crank lets go or it just gets shut off and metal is in the pan...) Normally that is an oil starvation root cause--but not in these cases. Well cared for engines have let go for no apparent reason-so that is the worry. Bearing surfaces are not as wide at a straight six and heat is an issues. Quality oil and regular changes are really important. I have never gone over 5K for the interval on mine. It is not deleted so not taking chances on TBN dropping low and soot building up to crazy levels.
 
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