nailhead

Now that I've got my foot out of my mouth: I've pretty much committed to buying a '93, but I still have to ask-- Does 255,000 miles constitute a worn-out Cummins? It hasn't been babied, but it runs like a sewing machine, and rigs get a LOT of highway miles around here. Any thoughts?
- Chris

wannadiesel

Nope, 255k is well broken in. If it's in good shape now you can expect at least another 250k out of it. There's a million miler on the site (Mopar2ya). Head's been off once, and he rolled new bearings into it at some point. Still running well without a real overhaul.

Willy91

A 255,000 mile cummins is no where near worn out. There are several Cummins out there at 500,000 miles plus and still running like a champ. Shoot 255,000 is just getting good and broke in.

G1625S

Nah, you're right in the ballpark. Maybe just on the high side of the ballpark, but the odometer is really not a gauge of engine life like it is in a gas engine. Heck, mine's got just over 400k and there are some folks well over a half million still blowing soot. Even a moderately modified b5.9 will likely outlast the truck it was originally placed in

nailhead

...cool! Thanks!
- Chris

jeepsuck

so what does kill these mills? my last gasser was killed by a blown power valve in the carburetor. washed me cylinders down with gasoline and i had worse blow-by than a hooker fresh from the dentist office . got crap (7) mileage too! after that, it wouldnt pass smog. thankfully, diesels are smog exempt in Kalifornia!

Underpsi

im not sure what brings these beasts down, main bearings or rod bearings maybe?

wreckere022002

ill say this much ive got 230 on mine and i would not trade it for anything its been the best buy ive ever made and hope to have a another 250 or so before i get her broke into ive have little problems with her my thought buy her if you have some problems it will be this site and these people that will help you get through it looking forward to see pics and to hear how she is doing

frostie

I have 2 1992s, 1 has 290K and I drive it every day. the other has 291 and It put 948 Lb Ft of torque to the tires. Im not afraid to take either truck across country.

Bosshawg600

Like with any CTD, If its in good shape and at a good price BUY IT. Especally sence you said it was babied, if it didnt pull a huge load all its life you should be fine and enjoy it.


What kills a CTD? I would say mainly burt pistions, running it too hot for too long, sometimes fuel issues with a few years. kind of hard to kill one if basic maint. is kept up.

lovemysan

What kills them is same thing that kills gassers. POOR Maintenance and abuse.