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+--- Thread: Cummins running ruff (/showthread.php?tid=36)
Pages: 1 2
RE: Cummins running ruff - Waterloo - 03-28-2016
(02-24-2016 )Isx Lover Wrote:(02-24-2016 )Fordmandan87 Wrote: The crankshaft dampener hardens around 500k and you start feeling more engine vibration as a result. Not saying that's the cause but it could be making it more noticeable.
Here is a picture of my damper with 1020000 miles on it. I don't know what they are supposed to look like but here's mine. The black stuff has consistency of tar.
That is supposed to be a viscous material, as in liquid... Not tar. That one is bad.
RE: Cummins running ruff - Old Driver - 10-05-2019
Just seen this black rubber looking material on my damper coming out from the seam. This damper only has 180,000 miles on it and about two years old. I used three coats of cummins paint on it ( don't remember about primer) and it seems like the paint is holding up. Is this a normal failure or a sign of other damage. Its a CM871 with 701,290 miles and 17245 hours.
I dont want to just replace the damper if there us something else that caused a problem like this. I.e. crankshaft
RE: Cummins running ruff - Waterloo - 10-05-2019
What the hell is up with Cummins and these parts? That damper is failing, I would get that off ASAP. If Cummins installed the damper, or the dealership, the part should have a 1 year labor and 2 year part warranty. This is one of those times I hope you had this replaced at a licensed Cummins shop.
Looks like a poor quality build, it should not separate like that. I can't see your crankshaft doing that. I can't see any damage on the damper, I am going with poor QC.
RE: Cummins running ruff - Old Driver - 10-05-2019
I put it on myself 2 years ago. Nothing hard to do just follow the manual. I have no hesitation to do another one, just dissatisfy with a failure like this.
RE: Cummins running ruff - Waterloo - 10-05-2019
(10-05-2019 )Bahdan Wrote: I put it on myself 2 years ago. Nothing hard to do just follow the manual. I have no hesitation to do another one, just dissatisfy with a failure like this.
I know, just wondering about the warranty if they will honor it if you installed it, you know, the damn fine print.
RE: Cummins running ruff - marek4792 - 10-05-2019
http://rawze.com/forums/showthread.php?tid=77
this link shows mine actually came apart at about 1.1 million miles and when it was pulled off the truck, engine sounded like it had a really bad knock beforehand.