Yes, they ran a compression test on all cylinders and said there was no
damage.


wrote in message
ps.com...
Jim, did the "new" mechanic feel there was no other engine damage?

Unless the winterizing is already done, I'd still ask them to run a
compression test, to see if a cylinder is low on compression. ie burned
halve, blown head gasket, or even a cracked head.

These engines are pretty tough, but can still be hurt by accessive
heat, and in some cases, it doesn't take much, either.




JimH wrote:
I went to check on the repairs on my boat this morning, get the
winterizing
set up and square away on my bill. The engine was running rough after
my
overheating episode this summer. My new mechanic found that the port
side
exhaust manifold gaskets had failed due to the overheating and were
allowing
water into 2 of the cylinders. They also found that the oil cooler was
leaking and the wrong spark plugs were installed (I had my old marina do
a
tune up on the boat last summer).

Every time the *OMC Certified* mechanic at my old marina touched my boat
he
screwed something up. First he never replaced the impeller like I asked
him
to, saying he checked it and was working fine. Then the boat overheated
because the impeller failed. Then he installed the wrong temperature
thermostat when trying to "fix" the problem, never finding the bad
manifold
gasket. Earlier he used the wrong spark plugs during a routine tune-up.

Boy am I glad we switched marinas and now have a good mechanic. ;-)