bump diagnosis

[justinf]

Gross titles, sorry.

I'm using a Centaur UT crankset on my carbon Tournesol and a sort of dull bump has developed that is intermittent, but when occurring it's always at the bottom of the non-drive arm's travel. Sounds like it's coming from the bottom bracket shell. I have checked the fixing bolt's tension and it seems fine.

Any thoughts on what might be causing this?

[Blue Jays]

What about disassembly, through cleaning, and careful reassembly "just for kicks" to see if that solves it? If nothing else, it can't hurt. Perfect fun for a Friday night! :)

[jmewkill]

SOP:
check cleats -> shoes -> pedals -> crank -> bb -> seatpost -> seat

failing that - torch the sucker and order another

[justinf]

What about disassembly, through cleaning, and careful reassembly "just for kicks" to see if that solves it? If nothing else, it can't hurt. Perfect fun for a Friday night!

Yeah, that sums it up, don't it? Oh well, no magical enlightenment, but thanks guys. I see what my night entails. . .