Quote:
Originally Posted by ndutton
Don't get so focused on the exhaust as the source of water incursion that you overlook the many other possibilities...
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I agree with Neil. I've been down this path before. I got so wrapped up in the exhaust that I neglected to do some simple things first to eliminate other causes.
One of these simple things is to pressure test the manifold and cooling jacket. This can be done together with the engine in place with minimum disassembly. If it holds pressure, you've eliminated a bunch of possibilities, and if it doesn't, you've eliminated the exhaust.
There's a detailed description of an easy way to pressure-test here:
http://www.moyermarine.com/forums/sh...1&postcount=10