Saturday, October 02, 2010

THE BOAT GREMLIN HAS BEEN FOUND



With much straining and cussing, Troob's starboard engine was stripped of more and more pieces, trying to find how the cooling water got into the crankcase oil.  A couple of early possibilities proved not to be the cause.  However, when pressure-testing the exhaust manifolds (which are water-cooled on boats, requiring a double-walled construction ---  one chamber for exhaust gas, surrounded by one for cooling water), a small leak was detected between the chambers.  The technician poked the weeping spot with a screwdriver, and went right through to the other chamber.  Shoot!  New manifolds required.

.Meantime, we had found a quarter-sized rust spot on the side of one of the cylinder walls.  An old spot, quite rough.  More than could be honed smooth.  Now we're looking at a re-bore, new rings and pistons, and we haven't even looked for possible main bearing damage yet. 
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Consensus:  New (or rebuilt) engine.  Double shoot!!
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Troob has given us a lot of pleasure over the 32 years we've had her.  I guess it's pay-back time, so she can give us some more in days to come.