Originally Posted by
John E
The "tighten it more" approach worked well with my Swiss-threaded 1980 Peugeot PKN-10. Having had no success going clockwise, I gave it an anticlockwise jerk, and then I was able to unscrew it clockwise.
With the leverage of this method, there is never a need for jerking or hammering, no collateral damage from shock and awe, just slow, steady brute force.