Originally Posted by
fietsbob
spline interface doesn't need tightening , so much, You may have damaged the crankarm,
or the last guy did and that's why he sold it.
torque wrenches at least offer Data,, how much is a number.. that can be typed ..
There doesn't appear to be any damage to the splines...
The right side simply rides on the bearing; it does not need to press against the cup. You probably have a loose spider-crankarm connection like this.
The red line shows the motion possible, the yellow shows the gap created. That turned me off any Truvativ crank going forward, since I had an aluminum unit do the same thing.
Thanks, that picture was helpful. My right crankarm basically looks just like that, but the spindle interface is NOT loose. The play is definitely due to the cranks not pressing down on the bearings, even when tightened as much as possible.
(And thanks for correcting me... I didn't mean that the right arm had to press against the cup, just against the bearing surface.
Originally Posted by
Bekologist
Bring it into the shop, i think you might need a wavy washer at the very least!
According to Park Tool, the SRAM cranks don't use wavy washers. But at this point, I really really think the spindle is too long or the BB shell is too narrow, for some reason. I believe I need a spacer of
some kind. I'll take it in and see what they think. THanks!
Oh, and glad to see you Pacific NW-ers in this thread. I'm moving to Portland, Oregon next week
