J
Jeff
Guest
This is driving me crazy. I have a used Serotta Ti road frame and a new 2008
model Campy Record CF Crank with the external bearings.
....and a terrible creak/clicking that is almost certainly coming from the
crank area somewhere.
The noise sounds like it is in the bearings to me. It isn't a single click,
but some more constant noise that sounds like a bad bearing.
....but again, all parts are new.
The noise occurs at higher speeds regardless of whether I'm standing or
sitting, whether pedaling with one foot or both (although worse with both),
and it seems to still occur if I'm up to higher speed (>22mph or so), and
then back off on the force to the pedals (as long as they are still
spinning - if I stop spinning, the noise stops). It also seems to be there
if I simply pull up on the pedals without pushing down (not as loud, but
it's there). At lower speeds, (around 10-12) I don't hear it.
I've already re-greased the pedal threads (but since it is still happening
with using only one pedal at a time, I wouldn't think it was the pedals),
re-greased and re-torqued the chainring bolts, and re-greased and re-torqued
the crank bolt that holds the two crank sides together.
I did not (yet) re-check the torque or re-grease the external bearing cups,
but I did use a torque wrench when installing them, and I have antiseize on
the threads. I did not face the BB shell, figuring that a multi-thousand
dollar frame would already be faced properly (but it was used).
I suppose that it's possible that I have a slight bit more than the
recommended torque on the external bearning cups. I'm wondering whether
these things are sensitive to binding somehow if torqued too much.
I plan to pull the cups back out and re-install, but was wondering if others
could tell me if I'm missing anything, and whether there is anything else to
check. How likely would it be to have Campy record external bearings be back
out of the package?
Thanks for any advice you could offer
--
Posted via a free Usenet account from http://www.teranews.com
model Campy Record CF Crank with the external bearings.
....and a terrible creak/clicking that is almost certainly coming from the
crank area somewhere.
The noise sounds like it is in the bearings to me. It isn't a single click,
but some more constant noise that sounds like a bad bearing.
....but again, all parts are new.
The noise occurs at higher speeds regardless of whether I'm standing or
sitting, whether pedaling with one foot or both (although worse with both),
and it seems to still occur if I'm up to higher speed (>22mph or so), and
then back off on the force to the pedals (as long as they are still
spinning - if I stop spinning, the noise stops). It also seems to be there
if I simply pull up on the pedals without pushing down (not as loud, but
it's there). At lower speeds, (around 10-12) I don't hear it.
I've already re-greased the pedal threads (but since it is still happening
with using only one pedal at a time, I wouldn't think it was the pedals),
re-greased and re-torqued the chainring bolts, and re-greased and re-torqued
the crank bolt that holds the two crank sides together.
I did not (yet) re-check the torque or re-grease the external bearing cups,
but I did use a torque wrench when installing them, and I have antiseize on
the threads. I did not face the BB shell, figuring that a multi-thousand
dollar frame would already be faced properly (but it was used).
I suppose that it's possible that I have a slight bit more than the
recommended torque on the external bearning cups. I'm wondering whether
these things are sensitive to binding somehow if torqued too much.
I plan to pull the cups back out and re-install, but was wondering if others
could tell me if I'm missing anything, and whether there is anything else to
check. How likely would it be to have Campy record external bearings be back
out of the package?
Thanks for any advice you could offer
--
Posted via a free Usenet account from http://www.teranews.com