1986 3.0 mercruiser

J

Jamz33

Petty Officer 2nd Class
Joined
Jun 14, 2018
Messages
131
The engine got hot and is now getting water in the oil. Is there a way to test to see if it’s the head gasket, head, or block without tearing it down one by one? Maybe a way to pressure test that will help determine?
 
A

airshot

Admiral
Joined
Jul 22, 2008
Messages
6,722
Compression test to start. These were known to warp a head when they overheat. Usually between 2-3 cylinder.
 
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