Removed an ancient bottom bracket from an old frame, cleaned and lubed the threads, stuck a new BB in...and this happened. It got in to this point and now no matter which way I thread it's just spinning in place (by hand). I can't remove it and I can't thread it in any more. Safe to say it's all fucked?
Sounds like the plastic BB is fucked but I'd be surprised if the frame BB threads are stripped. Even with a steel BB cartridge it's difficult to strip the frame threads unless you've only just started screwing it in.
You could smack the spindle with a mallet from the other side. Worth a shot.
Removed an ancient bottom bracket from an old frame, cleaned and lubed the threads, stuck a new BB in...and this happened. It got in to this point and now no matter which way I thread it's just spinning in place (by hand). I can't remove it and I can't thread it in any more. Safe to say it's all fucked?
Yes this is plastic