California
Super Star Member
- Joined
- Jan 22, 2004
- Messages
- 14,982
- Location
- An hour north of San Francisco
- Tractor
- Yanmar YM240 Yanmar YM186D
Ok if you have gray smoke you have fuel. (But as Carey said it could be bad fuel). The other things a diesel engine needs are air and compression. Lets assume it doesn't have a plugged air filter. (Actually the fourth essential item is sufficient cranking speed to make it fire.)
If it sat 10 years - and was in worn condition before it was abandoned - then the rings or valves could be making such a poor seal that compression is inadequate to fire it. You can help it a little: heat the head near the injectors with a hair dryer, then rig the hair dryer to push hot air up the air intake. Also assist the battery with a charger, preferably a 2/10/50 amp jump assist style charger, to make it crank faster.
Finally, and I've never tried this, I've read that worn out tractors are sometimes started by towing. That would be highest gear and low speed.
It might seal up better if you could get it running and warmed up.
If it sat 10 years - and was in worn condition before it was abandoned - then the rings or valves could be making such a poor seal that compression is inadequate to fire it. You can help it a little: heat the head near the injectors with a hair dryer, then rig the hair dryer to push hot air up the air intake. Also assist the battery with a charger, preferably a 2/10/50 amp jump assist style charger, to make it crank faster.
Finally, and I've never tried this, I've read that worn out tractors are sometimes started by towing. That would be highest gear and low speed.
It might seal up better if you could get it running and warmed up.