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Bore cylinder over or sleve

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butler652merc

Member
i finally got a chance to pull

i finally got a chance to pull the head off and it looks like the rings broke off and bounced around in there for a bit. i was looking in the manuel says that i can go from a 3.125" piston to a 3.140" without the piston weighing any more. would it be best to do that or would it be better to have a sleve put in?
 
Boring one cylinder is an acce

Boring one cylinder is an accepted practice on outboard motors.
 
"many shops do that,and the cu

"many shops do that,and the customer ,thinks, he is getting a 'full' overhaul,when he is actually getting what is known as a 'short' overhaul.that is how alot of places keep overhaul costs down.I personally,have not done a short overhaul in 20 yrs.You get a MUCH better running eng,boring all cyl's even,then inst all new pistons,brngs,etc."
 
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