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Canadian Daves JustKDX
lost my piston circlips!!
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[QUOTE="reepicheep, post: 1376759, member: 104942"] I get the "don't reuse circlips"... they have a really hard job, and are really minimal, and installing and removing them seems like it is likely to exceed youngs modulus and "un springy" them. And they are cheap. But getting a used bike and pulling the jug, inspecting the piston / bore / head (without removing any rings or circlips) and bolting it back together doesn't seem like it should require rings to be replaced (unless they are worn out of spec). The rings float (constrained by the pin) anyway, right? So they don't really "line up" with anything besides the pins that keep them from lining up with each other. I'd say even on the pin, compressed in the cylinder, they have a good 1/8th inch of rotation play. And looking at the piston here on my desk, which had been abused to heck on the 95 I bought used (to the point where the piston skirt was cracked and scored, and the cylinder bore was grooved and galled), the piston rings (which were worn on the thrust surface to at least *half* of their original thickness) are mirror smooth all the way around. That cylinder was badly scored, the rings are mirror smooth. I'm not trying to discount hard won experience... But on three (soon to be four, my 9 year old is going to have a *really* merry christmas :) ) bike I have bought or helped buy, I pulled the jug to inspect the condition of things then bolted it back together with no problems. Two of the three times, everything looked perfect and it went back together and continues to work perfectly. The third time the piston skirt was cracked and the rings were badly worn, and it got a full top end rebuild. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
lost my piston circlips!!
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