Re: Packard TSB 56T-20 - Low Oil Pressure

Posted by Tim Cole On 2009/11/2 20:25:42

I agree that more volume will certainly help, but has anyone tested the original pump to see how much it actually displaces? My reference materials state that 3 to 6 gallons per minute is required to oil an engine.

After that, the primary cause of low oil pressure is going to be leakage either in the pump or elsewhere in the motor.

That's why I have asked the machinst working on this unit here to carefully look for any flaws in the castings and fixtures where leakage might be occuring.

The high variance among these engines is an area of concern.