Gotta scratch I'm not sure how to itch.....

Grumpy Bear

Seaman
Joined
Aug 23, 2014
Messages
58
1974 Merc 50hp 500. See pic. First time the case has been opened in 41 years. Actually didn't realize that a scratch in my cylinder #4 was this significant until I started honing (as odd as that is -- 220# hone, about to finish with 320#). Replaced the piston and rings for this cylinder already before reinstall. Funny thing is, #4 had great compression before disassemble! Anyway, there is a scratch that my fingernail will definitely catch upon but not horribly so (it's the middle scratch that goes down to the port and no further -- the ones to the left and right of it are either barely detectible or not detectible at all with a fingernail or any other pointed utensil). I've invested a couple hundred dollars in this rebuild and don't really want to invest more in a bore/sleeve. Give me your thoughts...

scratches.jpg
 

procraftguy

Petty Officer 2nd Class
Joined
Jul 7, 2013
Messages
137
If it were mine id bore but with that said iv seen worse that was fine with new rings only 2 to 3 # off rest on a customers that insisted i just rering lucky maybe so ur call really
 
Top