cartridge bottom bracket noise
03-08-05, 10:16 AM
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cartridge bottom bracket noise
can a cartridge bottom bracket make noise if it's loose? i know this is a kinda dumb question but my wife's bike is making a clanking noise, i've checked the cranks and they're tight. the noise is mostly when she's standing.
will a cartridge bb sometimes need snugging up?
will a cartridge bb sometimes need snugging up?
03-08-05, 10:23 AM
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Originally Posted by Surferbruce
can a cartridge bottom bracket make noise if it's loose? i know this is a kinda dumb question but my wife's bike is making a clanking noise, i've checked the cranks and they're tight. the noise is mostly when she's standing.
will a cartridge bb sometimes need snugging up?
will a cartridge bb sometimes need snugging up?
03-08-05, 10:31 AM
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i need to eliminate pedals cause it might be them(they're cheapo vp mtn pedals) and yeah the bearings could be toast, but can cartridge bb's be too loose?
03-08-05, 10:35 AM
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Originally Posted by Surferbruce
.........and yeah the bearings could be toast, but can cartridge bb's be too loose?
03-08-05, 10:44 AM
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A cartridge type bb if loose will tend to creak in aluminum frames. If it's clanking and you've ruled out the pedals, it may be worn out.
Manufacturer's will save money when they spec their bikes. Bottom brackets are notorius for being "super cheap" generic items. They are not seen and new work fine. Unfortunately, the design tolerances are crap and they wear out quickly!
Check out other things as noises tend to transmit through the frame. Check the seat post binder bolt. Check your headset. Check you water bottle cages.
Manufacturer's will save money when they spec their bikes. Bottom brackets are notorius for being "super cheap" generic items. They are not seen and new work fine. Unfortunately, the design tolerances are crap and they wear out quickly!
Check out other things as noises tend to transmit through the frame. Check the seat post binder bolt. Check your headset. Check you water bottle cages.
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03-08-05, 11:37 AM
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I'd remove the bottom bracket, clean & grease the threads on the the bb & inside the bb shell & reinstall. Only takes a few minutes & if the noise is still there, you can at least remove that from the list of possible causes.
03-08-05, 11:41 AM
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Originally Posted by nick burns
I'd remove the bottom bracket, clean & grease the threads on the the bb & inside the bb shell & reinstall. Only takes a few minutes & if the noise is still there, you can at least remove that from the list of possible causes.
03-08-05, 02:20 PM
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After I picked up a new bike a few years ago, it made a maddening noise that was finally tracked down to the bottom bracket. The LBS mechanic tightened the cr*p out of it and it stopped creaking. However, this cycle repeated a few times (enough that I bought the necessary tool) then it mysteriously stopped loosening itself - knock on wood. ;-)
03-08-05, 02:44 PM
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well, turns out there was a bit too much play in the rear hub. i needed a couple things at the lbs and the mechanic found the prob in a matter of seconds.
if anyone else is in l.a. wilbur the wrench at helen's s.m. is a really good guy...
thanks for all the input!
if anyone else is in l.a. wilbur the wrench at helen's s.m. is a really good guy...
thanks for all the input!
03-08-05, 03:24 PM
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Originally Posted by Surferbruce
well, turns out there was a bit too much play in the rear hub. i needed a couple things at the lbs and the mechanic found the prob in a matter of seconds.
