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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 08-03-09, 10:00 PM   #1
tadawdy
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bottom bracket grinding

recently replaced spindle in bb. Adjustment was perfect when I replaced it. was lubing chain, and noticed resistance in bb when backpedaling by hand. removed chain from chainring, and resistance remains when pedaling forward as well as back. I haven't had any trouble in riding it, nor has it made any sounds. The resistance is incremental (i.e. it's smooth, then a jump, then smooth, and a jump...)

I recently loaned my crank puller to a friend, so fixing it will have to wait. was planning on doing a century tomorrow. Is it possible the adjustment had just somehow become too tight? Just hoping someone could tell me what to expect when I open it up, and if it became too tight, how to keep it from happening again.
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Old 08-04-09, 08:15 AM   #2
Panthers007
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Yes it could have slipped - there are a number of possible scenarios for this to happen. Not knowing what sort of BB you have - suffice to say: Don't ride it until it's running smooth.
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Old 08-04-09, 10:09 AM   #3
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Is it safe to assume that there is no play at all in the spindle now? If so, and you want to back off a little on the cup you don;t absolutely have to take the crank off. Just back off the lockring a tad and then spin the hub cup back and re-tighten. Proly won't take more than a minute or two to try it and see if it does the trick.
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Old 08-04-09, 11:02 AM   #4
tadawdy
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unfortunately, there isn't enough clearance between the crank and lockring to fit my wrench in there to fiddle with the adjustment. But, no, there is no play. I am hoping that has somehow gotten out of adjustment, and that is all, and that the bb is not shot from being over tightened.
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