If you are concerned about the
engine and can get no help from the owner I would pay a
mechanic to check it out. Might want to have an
oil sample analyzed and do a
compression check.
Do you know the make and model of the
diesel? Any experience with diesels?
Before going further you can do a little check up on your own. If the owner allows, go to the
boat and make sure the engine is totally cold, has not been run for at least a day. Crank it up and look closely at the
exhaust at the stern. Also, note how quickly and easily it cranks. Does fire right up and run smoothly or do you have to turn it over numerous times.
Look at the
exhaust for any smoke. If you see it how much and what color, white gray or black. Look closely at the
water where the exhaust hits for the little rainbows on the surface that would indicate
oil or unburned
diesel. If you can drive the boat or at least put it in
gear at the
dock (make really, really sure that the
dock lines are tight and do not have enough slack to let the boat touch the pier or pilings) wait until the engine is warm and rev up the engine in forward and reverse. Again look for smoke and make sure the engine revs up to full
RPM. While the engine is fully warmed up check the oil pressure as well.
Another consideration, if the Hunter has the original
rigging it is reaching the age where riggers and
insurance companies recommend replacement. If you pay a rigger to do it should be around $4-5000.00. The
Bavaria should have a few years of life left in it assuming care and
maintenance.