low oil pressure rebuilt 318

RustyRatRod said
RIGHT! Also, nine times outta ten, when the hex on the intermediate shaft rounds off, the female hex in the pump is damaged, too.

Its the only thing that fits what he is saying. Normal pressure when priming. Inadequate with engine running. How can it be anything else but a slipping rounded off hex. If it's not that then I'm gonna learn something here lol.