|Help - Click from bb||hallcd7|
Nov 2, 2002 10:25 AM
|on the down stroke of the right pedal i hear a click from the bb area. dont hear it if the pedal stroke is light. occaisionally i hear it on the left downstroke as well. where should i look first. New ultegra bb, cracks drievtrain, etc.
|Honestly - everything sounds like it comes from the BB.||Spoke Wrench|
Nov 2, 2002 1:17 PM
|Probably the two most notorious culprets are pedals and the seat clamp. I've heard people claim everything from loose headsets to loose rear quick releases sounded like bottom bracket noise to them. Good luck.|
|Thanks for the tip. its related to the pedaling effort somehow(||hallcd7|
Nov 2, 2002 2:43 PM
|agree - been there before||DaveG|
Nov 3, 2002 2:36 PM
|I had a noise earlier this year that I swore was the BB. After two weeks of investigating everything imaginable on the bike (and getting lots of good advice here) I finally realized it was the seat rails creaking. Only happened when I was pedaling hard/fast.|
|re: Help - Click from bb||B2|
Nov 2, 2002 4:01 PM
|Try isolating and eliminating. Do you get the clicking when standing? If no - check your seat post. Do you have another wheelset you can try? An extra cassette? Do hear the noise when you grip the bars next to the stem? You get the idea.
|re: Help - Click from bb||McAndrus|
Nov 3, 2002 9:26 AM
|If it's truly in the drivetrain - and not seatpost or some other source - then it's probably the BB itself or your pedals. Check the pedals to be sure they're in the crankarms snuggly.
Sometimes BBs work themselves a little loose and need to be tightened down. I'm sure there are a lot of other tricks but the best I've seen to stop BB creaking is to put plumber's tape on the BB threads. Did it to one of my bikes with a creaking BB and it solved the problem.
|If it is the BB||Kerry|
Nov 3, 2002 3:23 PM
|then the most likely cause is lack of clean/lubed threads and lack of proper torque on installation. I've had good luck with cleaning all threads (frame and BB) and liberal application of high quality grease. Torque to spec (Shimano = 50 nm, Campy = 70 nm). You'll not likely get enough torque doing it by feel. Some have reported that they could only get rid of their clicks with plumber's tape, but I've tried it with no difference. As others have noted, clicks can come from pedals (grease the threads, get some wax etc. on the cleats, grease the bolts into your shoes, squirt some lube into the guts of the pedal machinery if possible), the chain (clean and lube), your seat post and saddle (grease the post, seat post bolts, saddle rails), your bars and stem (grease the stem, stem bolt at both ends, h'bar bolt, and h'bar where it goes through the stem), and your wheels (check for spoke tension, particularly on the rear non drive side, put a drop of lube where each pair of spokes cross, grease/tighten QRs).|
|My BB clicked until I cleaned the chainring bolts ;-)||Spunout|
Nov 4, 2002 7:34 AM
|Chainring bolts! My BB creaked until I fixed the chainring bolts (grin!). Only in one or two rear cogs at that!
Some suggest greasing everything, or de-greasing everything. I don't know which will work for you, but try both. BTW, de-greasing everything and re-assembling dry worked for me.
|Mine clicked until I||Chen2|
Nov 4, 2002 3:20 PM
|sprayed the underside of the saddle with Armorall.|| |