Bob wrote:

Yes, that was my thought too. But there are some folks that say
"upgrade" to more modern model. ANd then mention part availibility
problems on 30 year old models. But when I went to my local tractor
dealer they didnt blink an eye when I asked for a rebuild quote on a
marine qm yanmar. The problem was the $6000 he quoted for the rebuild.
Thats a lot of money for a 30 yo motor.




I think $2000 per cylinder is a pretty standard charge for rebuilding a
diesel. $6000 for a three-lunger is not out of line. This is an engine
commonly used in sailboats. If its the original engine, a rebuild will
probably last the remaining life of the boat.