Pull the pump apart and pack the gears with petroleum Jelly. Vaseline. It sounds like you lost prime, and can't get it back. The Vaseline will do it. Ask Gary Hamel. It'll be alot easier than pulling that tired old motor.
Hey guys, I have a very perplexing problem here... I spent the last 2 weeks on the Polara getting ready for the Nats. Started it up Thursday nite to put it in the garage and 0 oil pressure, everything hammering. Friday morning I pulled the valve covers and found all looked ok, so I swapped out the oil pump with a used one I had, makeing sure to crank the engine and see the drive shaft spinning before I installed the other pump. STILL no pressure. Today I pulled the pan thinking it was the pickup, but all seemd ok, so I cleaned the pan and pickup and reinstalled them, but no oil pressure. I don't know what to look at next. This is a 65 413 motor still on the original bottom end and was carrying 20lbs of pressure at an idle. I realize the motor is tired, but i sounded fine when I shut it off, 45 minutes later, no pressure. If something broke I sure can't find it. Any ideas, old Mopar gurus? Unless I can come up with something, my next move is to pull the motor and tear it down.
Jeff Adams
64 Polara
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bOyW3N.