I have a FSA V-Drive MegaExo 180mm crankset on my single speed. The left arm keeps working loose when I'm really pounding (is on a single speed). I've tightened the crankarm bolts as tight as I dare, but after an hour or two it works loose again.
I am thinking maybe there is some grit in there preventing it from tightening down all the way, so I think the next step will be to pull the arm off and really clean up the splines on the arm and the spindle and reattach. Two questions:
1. I know that a solvent like WD40 would do a great job of dissolving the crud, but I don't want any of that getting into the bearing, also not sure the residue would be good. So I'm thinking a toothbrush and some dish soap. Thoughts?
2. When I bought the crankset back in 2008 it came with a small vial of some amber liquid. No instructions or label. I figured it was supposed to go on the splines to help hold everything together (kind of like locktite). It seemed to work, the crank was rock solid for a few years. Then I had to pull the arm off to replace the BB, and it hasn't been the same since. What was that stuff and where can I get more of it?
Thanks all,
Chris
I am thinking maybe there is some grit in there preventing it from tightening down all the way, so I think the next step will be to pull the arm off and really clean up the splines on the arm and the spindle and reattach. Two questions:
1. I know that a solvent like WD40 would do a great job of dissolving the crud, but I don't want any of that getting into the bearing, also not sure the residue would be good. So I'm thinking a toothbrush and some dish soap. Thoughts?
2. When I bought the crankset back in 2008 it came with a small vial of some amber liquid. No instructions or label. I figured it was supposed to go on the splines to help hold everything together (kind of like locktite). It seemed to work, the crank was rock solid for a few years. Then I had to pull the arm off to replace the BB, and it hasn't been the same since. What was that stuff and where can I get more of it?
Thanks all,
Chris