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Old 11-06-2012, 03:20 PM   #53
FR700
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Joined: May 2007
Location: Traveler
Oddometer: 5,886
Quote:
Originally Posted by halflive View Post
All your bearings seem to have some scoring. I would replace all of them. Never grind an airhead crank, they tend to break if its done. There are different theories why, but the rule is don't.
Just buy new standard big end bearings and leave the crank standard.


Right hand rod shows signs of either dirty assembly or something got past the filter.

Buying standard bearings is great ... if the journals still measure out at stock spec's and the mains can be re-claimed by linishing ... and no oval'ing of the big end.

Cranks can be ground ... the trick is by who and whether they get the correct radius




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