I cleaned my zap under the tap. started wrapping a new coil and when I went to tighten tight the screw on the center post the whole center post turned. somehow my center post has come loose. I cant use my zap :-( when I screw it onto my provari the center post pops up and touches the cap. it doesn't have any threads on it so do I tap it into place or glue it? please help I miss my zap 