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30 lt mercruiser exhaust manifold water leak

brentjmorgan

New member
I have a water leak coming fro

I have a water leak coming from between the block and the exhaust manifold. what would cause this and is it going to hurt it running? This motor is on a 1988 searay.The motor runs great doesnt over heating or anything.
 
"[b]"I have a water leak c

""I have a water leak coming from between the block and the exhaust manifold."

Ayuh,...

The leak is coming from 1 or the other, as there's No water behind any gaskets there...
My Guess is,...
Either the Block, or the Manifold has been Frozen,+ is Cracked....
Which ever it is,..
It needs replacing because otherwise, you run the chance of sinking your boat from the water dumped into the bilge..."
 
Bondo thanks for yor input. It

Bondo thanks for yor input. Itook the manifold off today and found my block was cracked. I went to the local dealer and they had me put marine tek on the crack. I let it set up for about 5 hours and ran it for about 15 min. And everything looks good no water leak or water in the oil so Im hoping this works for awhile. Once again thank you
 
"Ayuh,...

I know,... I saw


"Ayuh,...

I know,... I saw your post at iboats....
wink.gif


I've seen marine-tex last for Years,...

Good Luck..."
 
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