I have a nice Kaywoodie bent pipe that has a stinger. The only issue with the pipe is that the stem appears to have been over tightened so it is now about an 1/8th of a turn to far when it is screwed into the tenon. The stinger doesn't look to be removable either. I have seen quite a few antique shop pipes that are like this. Does anyone have any suggestions on repairing this. Thanks in advance.