get the sleeve out?
off this can be refereed to as a sleeve, cylinder,
liner, cylinder sleeve, or cylinder liner.
should be a nice sliding fit or a very slight press, not more
than you can push with your fingers. A press fit is wrong.
Many times after running and storage the sleeve will become
gummed up, rusted or corroded in the transfer port area and
carbon will build up around the exhaust ports. This will not
allow the sleeve to be removed easily.
way is to heat up the crankcase to expand the aluminum case
more than the sleeve. BE CAREFUL IF YOU ATTEMPT THIS. DON'T
the best way to heat a crankcase is in an oven. Yes this is
the high tech, official factory crankcase heating oven. Your
oven doesn't have to be as sophisticated as ours.
to remove any items that may be damaged from heat.
out at 300 degrees for about 10 to 15 minutes and proceed through
the rest of the steps. If your cylinder won't come out you may
have to go as high as 450 degrees. You really don't want to
go higher than this.
CAREFUL, DON'T BURN YOURSELF. You have to insert your finger
into the sleeve and rotate it to free up any rust or corrosion.
As you rotate it, pull it out. On ringed engines, be careful
not to allow the ring end gap to enter the ports in the sleeve.
You may break the ring if this happens.
should be able to extract the sleeve completely before the crankcase
cools off. You have to perform this quickly because as soon
as you pull it out of the oven the cooling fins take affect
and the crankcase will cool.
all the parts to cool completely on a surface that will not
be effected like our official factory 2x4.
you reassemble your engine, clean the outside of the sleeve
with some good 280 or 400 grit sand paper. If you are installing
a new ring see ring installation