89 mercury 115 rebuild

carolinabass

Cadet
Joined
Jul 15, 2008
Messages
7
i have a 1989 mercury 115 that i am rebuilding. one of the pistons cracked, the cylender wall is fine but the piston needs to be replaced. i know i should replace all 4 pistons but at over $100 ea i dont want to if i dont have to. just wanted to know what i should do. also bearings, i know they shoud be replaced in a rebuild but i don't know if all of them need replaced or just some. i am trying to keep it as cheep as i can to rebuild. any words of advice would help.
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: 89 mercury 115 rebuild

If you have a good bore thats with in specs 1 piston will be fine. As far as bearings and rings I would replace them but many shops do not so I think thats your call.
 
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