Originally Posted by
DCB0
Trek 820 is a solid decent bicycle. Nothing fancy, but certainly worth a few hours of effort to give it new life, if you've got a frew hours to spare.
A Trek 820 was an okay bike but nothing to write home about. The issue isn't the quality of the frame new. It's the salvagability of the frame of the frame now. The fixed cup is severely cross threaded
and rusted in place. Given the gap between the frame and the fixed cup, as well as the angle of the cup, you may not be able to chase the threads in the bottom bracket. There just may not be any threads to chase if (and when) the cup is removed.
Best to cut your losses and find another project bike. Chalk this one up to experience and look more closely at the frames in the future.