kshansen
Senior Member
- Joined
- Mar 11, 2012
- Messages
- 11,181
- Location
- Central New York, USA
- Occupation
- Retired Mechanic in Stone Quarry
So I found this old Cat D6 or D7 for a really good deal, got it home and it did fine for couple of hours . Then the engine started making a knocking noise. I tried to tell where the noise was coming but could not tell exactly, so I kept running it and the noise only got worse. So, since I was a good ways from the house, i decided get on back, but about half way it belched some black smoke and stalled out and won't turn over anymore. My buddy says it is probably the starter since it work turn over. Wooo... Cat wants a lot for that starter. Think I might change the engine oil at the same time to see if that helps.
First things first! Have you tried using a new key? Could be the old key is getting weak and can't push the volts fast enough to work the starter.