Thanks guys for the replys on my Cat 955K, now, I have some questions on my cat 8T model 12.
1st thing, trying to confirm the engine model in it. the engine ser# is 8T2735 and arrangement# 7F3687.
Someone told me it is a D318 engine, but I was talking to a parts supplier on ebay and he claims its a only a 4 cylinder engine, well its a 6 cylinder.
I need to consider either a head gasket kit or go ahead and get an inframe over haul kit. Now the graders ser # is 8T854. so possible someone changed the engine out in early years? since they dont match.
I dont run this machine much, maybe a couple times a year, a few yers back, it was getting comopressiion in the radiator, so I had a guy pull the head, I bought another used head from a used equip. dealer in Ok and they said it had been checked and magnafluxed. After reinstalling the head about 3 months later when I started using it to grade out my road, it started building up compression again in the radiator, bad enough to blow the water out.
It is for sure building compression.
I was told by someone that some of these engines in early years had a different type rod and main bearing ssetup and couldnt get those any longer and I am not sure if this is that model or not?
When I pull the head, of course I know it needs rechecking, but anything else to be looking for that might cause the compression in the radiator?
Who knows, maybe the mechanic didnt torque the head down right? I found this week working oon my 955K head that the head bolds came off using just a ratchet and one hand to break them loose!
Here is the other question, this originally had a pony start which was converted to electric start. Last year I went out to crank it up and the starter turned the engine 1/2 turn and stopped, so I did all the necessary checking of connections and even put on new batteries, still would not worrk,, soI pulled the starter and took it in, they said nothing wrong with it but replaced the bendix since it was just barely catching the flywheel. It still does the same thing, 1/2 turn and it acts like its locking up and will just click. took off agin and brought it back and told them to take it apart and check everything and rebuild everything that is in question, still have the same problem. OH, and did put a new solenoid also. I am wondering if the starter gear is wrong, maybe the rebuilder changed it?
if that is so, where can i get a bendix conversion gear? and anyone know a good place to get the engine kits.
Clint
PS: now I am out of breath:)