Quote:
Originally Posted by bkgoodman
It's been out of the water - for nine years! I think that when people are saying they don't think it was rodent damage, they're eluding more to something like my "mechanic" leaving the head off and boat uncovered - or something like that.
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I hear ya bkg, I'm just trying to help. If the head was left off, all of the cylinders would look like that. That damage/rust, IMO, is from either the intake or exhaust valve being open and water entering the cylinder somehow. On the intake side, the water would have to enter through the carb/intake manifold. On the exhaust side it would come from the exhaust riser which is cooled by lake water (unless you have a closed system). If one of the times over the 9 years the boat was stored you turned the engine over, if it was done by hand and you went the wrong way, the exhaust valve could've been open and you would suck the water/anti-freeze right out of the riser into the cylinder. This is even more plausible if the riser had a unknown crack in it.
BT