30 YR Wrench
Join Date: Aug 2005
Location: Oxford, OH
Bikes: Waterford R-33, Madone 6.5, Trek 520
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Well, I would certainly pull the crank. The BB is probably sealed, so no repacking possible. If is it loose, or doesn't spin smoothly, replace it.
Remove the 8MM allen bolt, and if you see a square axle in there, insert standard threaded crank extractor, remove crank. If the BB axle is not square, you will need a different extractor for Octalink. I have heard of folks using a penny along with a standard extractor for Octalink, but have never had to do that. For the BB, you need the tool appropriate to the brand of BB- probably Shimano- and a big wrench.
Last edited by BikeWise1; 03-25-11 at 08:52 AM.