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			With the big plans of installing the new to me 3.7 1987 mercruiser this weekend i decided yesterday to change the oil pan plug with a petcock with a hose barb. i drained the oil only to find water in the oil , not hevy but enough to know it's water. Dont know why i did not see this when i pulled the dip stick. now with all i have heard about the normal head gasket problems i pulled out my clymer shop manual and did the following (keep in mind i'm a carpenter not a mechanic) Drained collant, removed valve cover, called away to hospital as daughter has bouncing baby boy   Today removed intake/exhaust manifold. now is this where i can expect to find the most common problem? or am i continuing onto the removal of the head if so what is it exactly am i looking for, Thanks. Last edited by wellcraftv20step; 05-25-2012 at 07:28 PM. Reason: detail | 
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			No idea on how to fix the motor but CONGRATULATIONS on the new grandson!!!
		 
				__________________ 1986 V-20 1986 Yamaha 150 HP | 
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			CONGRATS! I had a old straight 6 chevy 250 in mine and the first time it had water the head had rotted (raw water cooled) the 2nd time the manifold was rotted, neither was a cheap fix!! GOOD LUCK!! 
				__________________ 1986 V20  Old Fishermen never die, we just SMELL that way!! | 
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