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K Smith
 
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Default Manifold failure, hydrolock :-(

Gould 0738 wrote:
Back ten days early. Raw water cooled exhaust manifold, pronounced OK not long
ago, not so OK after all. Our well mannered boat always takes care of us.
When the tranny went out a couple of years ago, we were behind the breakwater
and upwind of the fuel dock. Soft landing.

After running perfectly for a week, the engine shut down several seconds after
startup while we were still secured to a dock. Pulling the injectors revealed
water in #1 cylinder, and the engine will not quite rotate 360 when cranked by
hand in either direction. Obviously got water in through the manifold, and the
piston came up on a substance that would not compress. Two potentially
major-nuisance failures, and both occured in lucky circumstances.

Oh well, the old engine had 4000 hours on it, anyway.

We had a spectacular week. A little bit of unfortunate bad luck, but a string
of glorious days preceding.



Bad luck Chuck & sorry about it. Hope when you settle you share some of
the trip you did manage to do with the NG.

Old faithfully wasn't really to blame, water in the cyls is a big ask
even for a Perkins:-)

I noted below some indicative numbers you gave, wow!! & they're real
yanky dollars!! Hooly dooly.

For that sort of hooch can you consider different power?? As you say
you didn't really use the power the turboed perkins had anyway & these
days Cummins etc have some lovely units at what seem like good prices.
HP for HP you'll have plenty of room for su-) & "everything" will be
new & warranted.

Regardless I hope the repair goes well & your attitude is good so far
:-) but there will be tests:-)

K

 
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