Hi all I have a centaur powetorque chainset which has developed an annoying tick/click when under load. I gotta feeling this is down to the ridiculous wave washer that is used to preload the bearing anyone else have similar experience and a fix? It is soooooo annoying, a trusted mechanic faced the bb and prepped as per spec.
Hi Monkeyboy, I am trying to diagnose a similar Power Torque creak. I am in discussions with Campag.
If you still have the PT crank lying about, could you get the wave washer and tell me:- how much force does it take to squash it flat? Ideally can you do this on a bathroom scales and tell me eg 5 kg / 10 lb or whatever. If not, the simple test is:- can you squash it flat between thumb and forefinger? You might need to sandwich it between two bits of wood first, it tends to pop out otherwise. I've attached my photo below. Also, could you tell me
- how tall the WW is when uncompressed, just sitting on the table
- what colour is it (steel coloured or bronze).
You can read my very extensive thread on Power Torque here
but the bottom line is I suspect the wave washer is too feeble to prevent side to side play. I am trying to get to the bottom of it with Campag.
I would really appreciate if you could carry out the simple test, it would give me some more data.