Sounds to me like you should start putting them at 6:00 from the begginning. You know the saying, "If you can't beat 'em, join 'em.";)Originally posted by bigred455
i put my circlips in at the 12:00 position on a oem piston 00 kx 250.Every time i take my top end apart the clips are sitting at 6:00.
When I bought my current bike, at the first tear down I discovered the previous owner had aparently blown the engine, and had the cylinder sleeved. The piston-to-cylinder clearance at that time was about .06" at the top and bottom of the cylinder, and about .09" in the middle, obviously needing rebored. So, off to the shop it goes, and it gets reassembled, with a new piston. At the next tear-down, prompted by a loss of compression after only about 30 hours, I find the clearance to be nearly as much as it was the first time. No more of this crap! I bought a new cylinder, and it has been rebuilt 9 times without replating, and it is just now worn to the spec limit. Is a sleeve as good as plating? not by a long shot in my experience.Originally posted by 88RM250
Are you saying the cylinder doesn't need 'replating' every time ? If it's scored, and I venture to guess in most cases they are because most folks wait too long, and the cost of replating is substantially higher.
A sleeved cylinder doesn't need bored every time, just probalby honed a bit to clean it up. And it depends on the sleeve, they are often hardend and some, I'm told nearly as hard as the plating. I could be wrong though. Wouldn't be the first time.
.Originally posted by spanky250
Sounds to me like you should start putting them at 6:00 from the begginning. You know the saying, "If you can't beat 'em, join 'em.";)
..the most difficult part of the whole job other than the amount of time was aligning the rings with the piston alignment pin and holding the rings in place while sliding the cylinder over it
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