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

Posted by PackardV8 On 2009/10/28 21:37:50

Before trying the reroute of the oil filter feed try overfilling the crankcase by ONE quart of oil. ez enuf to do.

The problem with the oil gallery is that the left side is fed from a point about 1.5 inch below the sending unit. The rite side is fed about 2 inches below the sending unit.
That means that any air that enters the system gets trapped at the 1.5 inches just under the sending unit. As the air builds up it then pushes down to the nearest escape which is the left gallery.

The idea of the reroute for the oil filter is to bleed off the air to the oil filter before it can push down to the left or rite feed gallery.