>
> How is the cylinder piloted during the lapping?
 George, I use a red shop towel on the base of the
cylinder(to prevent it from cutting my hand), a old
cylinder of the correct size, put a bead of valve
grinding compound around the lip, slide it into the
head, put the rag on the base of the cylinder, pushing
firmly, rotate the cylinder back and fourth about 50
times, (you are the pilot so hold it straight) then do
the other hole. Do both heads. Most important clean
all of the valve grinding compound out of the head
when finished. Phil

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