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TJ[_3_] TJ[_3_] is offline
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First recorded activity by BoatBanter: Aug 2008
Posts: 82
Default 2-cycle ring installation

Eisboch wrote:
"jamesgangnc" wrote in message
m...
"TJ" wrote in message
...
I know that when new rings are installed in 4-cycle engines that it is
generally recommended that the cylinder walls be honed to remove the
glaze, so the the new rings will seat properly. Is the same true of
2-cycle engines?

I expect it is, but I just thought I'd check.

TJ

Majority of the time. There have been a few 2 strokes that used chrome
cylinders. Those can not be bored or honed. It's unlikely that you have
one but pretty obvious when you look at them.


I was told that the cylinders become somewhat oblong rather than round in
diameter on engines with a lot of hours and usually require boring first
when rebuilding.

Eisboch



This was a used block, so I don't know how many hours it had on it
before I got it. However, since I've had it I'd calculate less than 1000
over the course of 20 years. Oh, and maybe five minutes of running
overheated. But considering the way it still starts and runs, I'm gonna
gamble that it's not TOO far out-of-round.

I have a hone I've used on small engines before. It's one of those that
goes in a drill and has three spring-loaded legs with small stones on
them. It should do the job OK. It worked on my garden tractor, and that
has many more hours than the outboard has.

TJ