So the target bike that i have grown fond off has recently been facing minor health issues.
While riding, i have recently noticed noise coming out of my crank, and found out it was loose bottom brackett, so i go ahead and tighten it. In the process, however, i noticed that that bottom bracket was installed at an angle, and so the lockring wouldn't go on all the way.
So here is the question. I could take out the lockring, as well as the cranks and reinstall the bottom brackett. The trouble is that the mechanic at the local co-op said that if the threads are messed up from the first installation (target dudes) then i might not be able to get the bb in there again. He said that aluminum can not be re threaded.
First is this true, once aluminum threads are messed up they can not be fixed? i guess that would be my only question, because if it is then i guess there is nothing i can do with the frame anymore or is there??
Thank you for your assistance