would leaky elbow gaskets cause water in oil 81 260 Mercruiser?

chris0061

Chief Petty Officer
Joined
Jun 17, 2007
Messages
446
One problem after another on this boat. I posted before about having a hard time getting my exhaust elbows to seat on the log manifolds. I was getting hydro lock. Any way I got them to seal I cleaned them real good used new gaskets and plate and did the Job. After pulling them 2-3 times. I then went to change the oil and there was water in it. All milky, I figured it was cause of the problems I was having putting the elbows back on. Anyway I changed the oil and filter ran it on the hose for a while then took it to the river and ran around for about a hour always checking the oil. The dip stick level never changed and the oil looks good with a small trace of color that I figure is the remnants of the water in the old oil. So before I change it again I was wanting to make sure that the trouble I was having with the exhaust manifolds caused the water in the oil. Thanks in advance.
 

Bondo

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Apr 17, 2002
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71,357
Re: would leaky elbow gaskets cause water in oil 81 260 Mercruiser?

I was wanting to make sure that the trouble I was having with the exhaust manifolds caused the water in the oil.

Ayuh,... It's a distint Possibility...

In that scenario, it could pass water thru the rings when the motor wasn't running....
If it happened with the motor running, it would Not be the main Issue.....

After running for a hour on the pond,... I'd say you Fixed the problem...
 

chris0061

Chief Petty Officer
Joined
Jun 17, 2007
Messages
446
Re: would leaky elbow gaskets cause water in oil 81 260 Mercruiser?

OK good to know. I'll change oil again and keep a eye on it.
 
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