09-25-2010, 01:02 AM
emanating from my Bicycle when I ride it - it's driving me nuts!:mad:
Ok, a few details:
Ti Frame, 3yrs old, Campy Record 10 speed groupset.
The noise is like a creak / high pitch ping / tick sort of, and I'm pretty sure it's coming from the BB area, drive side crank. Noticeable on the down stroke between 6 and 7 o'clock, especially with plenty of load on or climbing out of the saddle.
I am reasonably proficient with some aspects of bicycle mechanics and have the tools to work on my machines.
What I've done over the last 2 weeks to try and sus this out:
* Remove both pedals, remove both cranks, remove bearing cups - clean entire area with Acetone, dry, re-grease with Phil grease, reassemble. Noise still there.
* Remove parts as above, remove both bearings from cranks, inspect, clean, re-apply grease, reassemble. Noise still there.
*As above but remove Bearings from a Chorus Compact Crank Set that has only seen minimal mileage and swap out with my Record Crank Set, reassemble...yip, Noise still there.
*I've tried another rear wheel, swapped out the cassette - no change!
*Thought it could be the chainring bolts, but they are on so tight that I have left them alone.
OK - couple of thoughts - My torque wrench will not go beyond 30Nm - the connecting bolt to lock in both crank arms requires 40Nm - is it possible that I have over tightened this and am squeezing the bearings together??
I know that quite often "Noise" heard on the bike actually turns out to come from somewhere completely different from what you think.....any suggestions for a solution to this? I'd love to solve the problem myself rather than trudge into the LBS
Thanks in advance for any help or suggestions offered.
Ok, a few details:
Ti Frame, 3yrs old, Campy Record 10 speed groupset.
The noise is like a creak / high pitch ping / tick sort of, and I'm pretty sure it's coming from the BB area, drive side crank. Noticeable on the down stroke between 6 and 7 o'clock, especially with plenty of load on or climbing out of the saddle.
I am reasonably proficient with some aspects of bicycle mechanics and have the tools to work on my machines.
What I've done over the last 2 weeks to try and sus this out:
* Remove both pedals, remove both cranks, remove bearing cups - clean entire area with Acetone, dry, re-grease with Phil grease, reassemble. Noise still there.
* Remove parts as above, remove both bearings from cranks, inspect, clean, re-apply grease, reassemble. Noise still there.
*As above but remove Bearings from a Chorus Compact Crank Set that has only seen minimal mileage and swap out with my Record Crank Set, reassemble...yip, Noise still there.
*I've tried another rear wheel, swapped out the cassette - no change!
*Thought it could be the chainring bolts, but they are on so tight that I have left them alone.
OK - couple of thoughts - My torque wrench will not go beyond 30Nm - the connecting bolt to lock in both crank arms requires 40Nm - is it possible that I have over tightened this and am squeezing the bearings together??
I know that quite often "Noise" heard on the bike actually turns out to come from somewhere completely different from what you think.....any suggestions for a solution to this? I'd love to solve the problem myself rather than trudge into the LBS
Thanks in advance for any help or suggestions offered.