100hp merc question

mphy98

Lieutenant
Joined
Oct 20, 2008
Messages
1,422
so I finally got the cover and tested the compression on the 1991 motor. No compression on the top cylinder. I would like to take the cylinder head cover off and take a look. I was told that there is no conventional head but it looks like one to me. spark plugs come out and I believe if I take out the "head bolts" then I should be able to see inside the cylinders and see whats up. Am I wrong?
 

carholme

Rear Admiral
Joined
Sep 4, 2010
Messages
4,845
Re: 100hp merc question

mphy98;

Do you have a manual? If not send us the s/n of your engine and I'll see if i can get you one to do the job. As well we can give you the parts listing for the head gaskets and any other parts you might need.

Gerry
 

mphy98

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Joined
Oct 20, 2008
Messages
1,422
Re: 100hp merc question

serial number 0d0z8202 thank you.
 
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