Posted by Steven f/AZ on September 14, 2008 at 16:49:25 from (24.121.250.95):
In Reply to: Engine hours posted by Pat B in Mich on September 14, 2008 at 15:45:38:
Depends on the use of the engine - constant load engines that have regular maintenance can run tens of thousands of hours before overhaul. I know of several field tractors that went 12,000 to 16,000 hours before needing an overhaul.
On the other hand, short run times, multiple start ups, etc. can drastically shorten the life of an engine. Our 1256 was in tip top shape when we got it with 6500 hours or so on it - was used as a field tractor and was almost like new. By 7500 hours of winter loader use (cold starts, short run times, idling, varying speeds and loads) it was in pretty sad shape. Had around 8000 hours when we got rid of it and the engine was shot.
Diesel engines like a constant speed and load once broke-in and will run a long, long time that way. Constant use generator service diesels have run 30,000 hours plus before overhaul.
Also depends on the quality the manufacturer put into it... lots of variables, really.
True condition of an engine can be determined by a used oil analysis and a compression or leakdown test.
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