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 Topic: Crank Problem, What Happened? 







pbekkerh

 
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pbekkerh » Mon Aug 14, 2006 7:24 am

doesnt look like hammering, more of a score mark, the bearing sounded a little rough, not megga, but still spun smooth, its now been replaced and the lug replaced too


How do you replace the lug ? Its an integral part of the bearing .

As the lug/locating pin is located in a hole in the crankcase, there should be a groove in the case, leading into the case, if the pin wandered in there.

I guess the pin could snap, if the case was worn. so only the lug kept the bearing from rotating. This could in the long run snap the pin when accelerating and deccelerating, but at the same time, I think that the locating hole should be elongated as the lug is much harder than the alu case.

It is possible to mount the bearing with the lug outside the hole. The lug will then dig into the alu but I can't figure out what the consequences would be. It doesn't look like the lug could be pressed through the bearing. Maybe it'l make the seal fail prematurely as the crank isn't aligned exactly in the case.
_________________
Poul
"If Life Gets Boring, Risk It!"
MC21SE, KISS box
MC21SP, HRC box, racing loom
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