The tool is called a ridge reamer.
John Holliday
67 fprod street sprite
--- Rick & Carolyn <walters@mail.softcom.net> wrote:
> Hi Bill,
>
> Are they grooves or ridges. Often where the rings
> stop on the upper end
> will leave a ridge. In my teen days they sold a
> deridge device that
> went around the top of the cylinder to remove this.
> It wasn't a
> cylinder hone but something else. Anyone on the
> list know about these?
> I would check for taper, if your cylinder is showing
> signs of taper then
> bore it out. BTW I would have the machine shop
> supply the pistons
> because you won't know whether it needs to be 10 or
> 20 over bored. If
> you show no signs of taper I would deream it to
> remove the ridge and
> call it good.
>
> Rick
>
> Bill Mantz wrote:
> >
> > It's dumb question time. The Midget is going to
> need to be bored. 1/4
> > inch from top of cylinder are some grooves. The
> dumg question is : I
> > understand the bore part, the new piston and ring
> part, but I'm clueless
> > about the sleeve. Catalogs list a (singular
> sleeve) for the motor. Are
> > we boring he existing sleeve, or are we replacing
> the sleeve with a
> > larger one. Sorry for such a stupid question, but,
> once again, I thnk
> > I'm confused.Sorry!!
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