Originally Posted by
dreaux
he says he uses a cnc maching in two stages and that he doesn't pinch them but uses instead.
That does not make any sense. There is no way to get the sleeve smaller unless you pinch it.
He uses a cnc machine to pinch the sleeve rather than a mechanical arbor press like shown is Ray video's. I have engines pinched by both and they both do a steller job!!!
I did have a Novarossi 3sct pinched once and It was extremely hard to get the sleeve back into the crankcase. Not sure how this happen; maybe the die used to hold the sleeve left burrs on the outside.
Just remember to change the rod and maybe the bearings.
Pass you soon...