My left crank arm, attached to a splined bottom bracket, manages to wiggle itself loose every time I ride. I've tried thread locker and tightening the bolt as far as I dared. It is now to the point that it must be tightened every 10 minutes and it's getting worse because the splines are wearing down.
I'm consider putting JB weld on the splines and on the threads of the bolt. When I eventually want to remove the crank arm I plan on using a butane torch heat the whole area and break the bond. JB weld is rated to 500 degrees F and a butane torch can reach 2500 degrees F.
Am I running a risk of permanently attaching these cheap components to my jamis sputnik?
At the moment I can't afford a new bottom bracket and cranks.
Thanks for your help.