All that rust showing in various
engine parts would be a concern to me.
How did it get there is the question foremost in my mind.
Always difficult to make a determination from just an overhead
photo, but seeing it there tells me that there was
water ...spray, broken hose or otherwise in there.
Would certainly give this
engine a good go over as outlined above. Check all the hoses, hose clamps, wire connections, etc.
The age of the engine...20 years old......would also raise some
flags. Is this engine still made, can
parts be found, etc. If sitting for a long time, the
water impellor may have deteriorated, broken, etc.
Certainly, check the
oil, and find out when the last
oil changes was and while you are at it, check all the other fluid levels,
transmission,
cooling, etc.
Yanmars are very good engines, but take this
boat for a test spin before putting pen to a checkbook. Does the
transmission shift smoothly...forward...reverse...does the engine come up to
rpm underload, does it shake and shudder and so on.
Check for
leaks after it's run.
Monitor the engine gauges while running, oil pressure,
coolant ok. Check for smoke at the
exhaust as well as
cooling water expulsion.
Lastly, check if the
alternator still puts out a charge.
It's not a five minute job, take your time. Go over some of these items one at a time.
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