Originally Posted by Driftwoods
Thanks Greg ...
Rather than rely on a inspection, even one from a top notch mechanic, would it be better to insist on at least a overhaul if not a a rebuild of the engine? The seller is willing to go pretty far to make this engine acceptable so I have some options (a total repower is not going to be one of them though).
When we surveyed the boat, the engine oil looked like it might have been put in there about a hour before we got to the boat, it looked like it does right out of the can. So now I wonder if even a oil analysis would tell us anything.
Would an overhaul give me the interior look at this that is meaningful?
I doubt the owner would pay for an overhaul for a sale
? Why not just chop some of the price
and let the next guy do it? And from your standpoint, you'll want to have the piece of mind selecting the shop and the parts
, etc during the overhaul anyway. Deals like this are cut in the purchase
price. Its all a dollar amount on uncertainty.
My .02 about the motor...
Lets ignore the fact that the gauges were disconnected (which is a huge deal but merits a different type of discussion).... The motor overheated on a sea trial.
Every time an engine runs above its specs there is a chance for stuff to go wrong. Gaskets can break down. Metals warp. Seals
give out. Oil burns, etc. Now someone had just taken care of this motor (hopefully) and changed its oil (possibly), but it still overheated. Even when on its show day.
Do you think it MAY have overheated before? Do you think repeatedly running above normal op temp could have repercussions? I sure do. And unfortunately, short of taking the head
off the block to check for warping or bad gaskets, not sure what else you can do to see what type of damage may have come from that sort of thing.
Check the easy stuff first though, you don't need a mechanic to:
check the impeller
check the state of the heat exchanger
check the motor zinc
look at the fuel
send an oil sample for analysis (run the motor a bit with the fresh oil before taking sample)
look over maintenance
look at the motor mount conditions
feeler gauge the shaft coupler to check alignment
check the state of the propeller
All of those jobs are simple and things you, as a boat owner, should know how to do anyway and chances are they may provide clues into why the motor overheated and what the other states of maintenance were.