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Clicking bottom bracket(5 posts)

Clicking bottom bracketRecRider
May 5, 2001 8:43 PM
There's an intermittent clicking sound which probably originates from the BB. I'm not sure if you prefer it to be creaking but it feels just like your clipping in. It sounds sometimes soft but get louder if I stand on the pedal and I guess it's not the pedal because I tried it once while I'm unclipped. Is my BB broken and needs to be replaced or do I have to tighten it more? What can I do to prevent this ? Will wrapping the tread with teflon tape help ?

The BB is Shimano 105 (BB-5500) on an aluminum frame and was well greased when it was installed.

Thanks
re: Clicking bottom bracketJohnG
May 6, 2001 8:23 AM
Before you rip into the BB check the cleanliness and tension of your skewers and axles. After that.... check the pedals, cranks, HS, seat post, saddle clamp, and stem. You can do all of this in about 2-3 minutes. If none of this fixes the "click" then the BB probably is the cause. At this point it's probably best to remove, clean, and replace the BB. Use copious amounts of grease. These click sounds can be very difficult to locate.

good luck JohnG
Replacement vs. reinstallationKerry Irons
May 6, 2001 6:21 PM
I'm assuming that JohnG meant "remove, clean, and REINSTALL the BB" rather than "remove, clean, and replace the BB." The odds are good that cleaning, greasing, and torquing to factory settings will solve your problem. The problem description does not make it clear how the noise was generated "when not clipped in" - how did you generate the force on the BB to get the click?
Replacement vs. reinstallationRecRider
May 6, 2001 8:51 PM
What I meant was pedalling with my foot turned sideways avoiding contact of the cleat with the pedal....
Doah... clean and replace....JohnG
May 6, 2001 9:25 PM
I've had good luck with popping the bearing covers off of "sealed" BB bearings but it is a bit tricky. I alo like to use a heavy bodied grease on BB shell threads. I've heard of the teflon tape approach but never tried it.

good luck.... these sounds can drive you crazy.
JohnG