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390 with very low oil pressure, help! By joe - 04/13/2004 12:52:58 AM; IP 24.147.43.196 I have a 66 galaxie with a rebuilt 390 that only gets normal oil pressure when I over fill the oil, 7 quarts. The engine already has come out for this reason to put a high volume oil pump in. But it did not fix the problem. Guage reads 5 psi at idle when warm and 30 with higher rpms. I've added another quart and it gets up to 25 idle and 45 reving. But I know this is too much oil! I've been told that it's the pick up tube, either not sealed to the pump right or not low enough in the stock pan. But before I pull the motor again is there anything else it could be? Also, is it very harmful to run it with so much oil?

This thread, so far...

Skip Navigation Links. 390 with very low oil pressure, help! -- joe, 04/13/2004  RE: 390 with very low oil pressure, help! -- joe, 04/13/2004  RE: You don't have to pull the engine, Joe. -- Gerry Proctor, 04/13/2004  RE: 390 with very low oil pressure, help! -- 67stang, 04/13/2004  RE: 390 with very low oil pressure, help! -- giacamo, 04/13/2004  RE: 390 with very low oil pressure, help! -- joe, 04/14/2004  RE: 390 with very low oil pressure, help! -- giacamo, 04/14/2004  Fixed it! It was the pick-up tube gasket! -- joe, 04/30/2004

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