Quote Originally Posted by DebW View Post
Is this an Italian bike? Italian threaded bottom brackets have right hand threads on the right hand (fixed cup) side, which, because of the direction of rotation, can loosen themselves. If so, be sure your mechanic uses Loctite on the right side threads. I'm still confused if you have a sealed cartridge bottom bracket or an adjustable cup-and-cone bottom bracket with loose bearings. When you took it apart, did the bottom bracket come out as one sealed unit (spindle inside a cartridge) or as a separate spindle, cups, and ball bearings? It's not normal for a bottom bracket to need repeated tightenings, unless it is Italian.
Definitely not Italian. 1993 Specialized Crossroads.

Last year we replaced the original bottom bracket with one with sealed bearings. (I know this because I took it out today.) Though it was making the same noise as last year, I'm not convinced that the problem is the bottom bracket because after replacing it today, I hear the tiniest little "clink clink clink"....

At least I know I have a new good bottom bracket, so whatever is making that noise, the pedals won't be falling off the bike.