[Pronto Poncho]

Originally Posted by dataway

I know the distributor has been pulled a few times .... are the ears off the oil pump drive shaft so it could be pulled and checked for witness marks?

Forgot to mention: The distributer was taken out, disassembled and checked as well. No signs of wear or bearing damage this time around.

While it was out another distributer was put in it's place and run which resulted in absolutely no change of tapping noise. So the mystery continues - - - - - ->