anyone ever have this problem?
#1
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anyone ever have this problem?
i'm hoping i'm not thinking clearly and this is an easy problem to fix. i started hearing this weird noise when i would need to backpedal hard to come to a stop..you know, the stops that don't need a skid but you need to slow down. well i decided it meant i should probably take my bottom bracket apart and give it some tlc. i greased everything up and put her back together..problem solved? i thought so! the next day i try to stop the same way and it makes the noise again so later that day i take off my crank and my non driveside bottom bracket thingy is loose. i tightened it and then today it seems like the problem is still there.. any ideas?!
#3
troglodyte
Yes, is it a squeak? A rattle? Does it tell you to kill?
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it almost sounds like a pop..i'm ready for it to be something really horrible..like the bottom bracket threads being shot or something like that.
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Did you grease the threads? Is the BB new?
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I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC
I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC
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Originally Posted by Cynikal
Did you grease the threads? Is the BB new?
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Originally Posted by jamey
it almost sounds like a pop..
RFM
#8
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Try using teflon/plumbers tape on the bb threads , it will stop things working loose and make your BB a little snugger.
The pop/click sounds like a BB adjustment issue, which you seem to have discovered is caused by your BB being loose. If you're still getting it when everything is snug then its a bearing issue which means replacing the bearings or BB.
I would also check your adaptor sleave/cup is not cracked. Some of the cheaper Sealed BBs have plastic ones and it can be damaged if not installed correctly.
Good luck
The pop/click sounds like a BB adjustment issue, which you seem to have discovered is caused by your BB being loose. If you're still getting it when everything is snug then its a bearing issue which means replacing the bearings or BB.
I would also check your adaptor sleave/cup is not cracked. Some of the cheaper Sealed BBs have plastic ones and it can be damaged if not installed correctly.
Good luck
#9
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Since it is a brand new bike are the wheels new? If the spokes are not properly tensioned you will hear a ping/pop as they settle in, kind of like guitar strings when you put new ones on the ol' axe.
My favorite "pop" theory though is the ungreased pedal thread. This will make the most awful/scary sound sometimes if the threads are not greased. Also check your chainring bolts to make sure they are on tight.
My favorite "pop" theory though is the ungreased pedal thread. This will make the most awful/scary sound sometimes if the threads are not greased. Also check your chainring bolts to make sure they are on tight.
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it's definitely a pop in the bottom bracket area. i only hear it when i slow down hard and when i would trackstad (when being the correct word since i have stopped since this noise started). it's sounds/feels like it's on the left side so i think i'm going to try fixedpp's idea to see if that makes it more snug and stops the noise.
#12
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Originally Posted by bostontrevor
A pop sounds like a loose crank arm or cog perhaps. Do you feel any sudden shift when it makes the noise?
#13
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I get the same feeling sometimes too. I feel this *pop* sensation in my feet sometimes when I'm starting from a standstill, or after really mashing up a hill. It almost feels like the chain is trying to jump off the ring.
I've been trying to track it down for the past week. So far:
0. cleaned and lubed chain
1. Replaced BB (old one was dead)
2. tightened chainring bolts
3. tightened cranks
4. checked pedal tightness.
5. checked chainline (about 1mm off)
This has reduced the popping by about 75%, but it's still there. I guess i'll tear it down again this weeked. and check the BB tightness.
Maybe I need a new chain?
I've been trying to track it down for the past week. So far:
0. cleaned and lubed chain
1. Replaced BB (old one was dead)
2. tightened chainring bolts
3. tightened cranks
4. checked pedal tightness.
5. checked chainline (about 1mm off)
This has reduced the popping by about 75%, but it's still there. I guess i'll tear it down again this weeked. and check the BB tightness.
Maybe I need a new chain?
#14
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what about the ole seatpost and saddle, are you sure its a BB noise. I have had the mysterious noise too and people have suggested checking out the seatpost and sure enough. Returning the favor.
#15
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Are the pedals new? If not, it could be that the bearings are shot...
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me?
My saddle rails to creak every so often, but I'mpretty sure it isn't the source of this problem, but I'll check. I can actually *feel* the popping in my feet, so I doubt that it's the seatpost.
My saddle rails to creak every so often, but I'mpretty sure it isn't the source of this problem, but I'll check. I can actually *feel* the popping in my feet, so I doubt that it's the seatpost.
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Originally Posted by el twe
Are the pedals new? If not, it could be that the bearings are shot...
whoa! I just removed the dustcaps on the ends and found out that I have about 5mm of play in the pedal bodies! is this normal?
#18
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take a look at your cog, too. A bent tooth will pop and ping as the chain jumps around under heavy load.