[Modelacrazyq]

I have found earlier posts on this subject, they all seem to point in the same direction- the check valve in the oil gallery. In those posts they mention shimming the spring to increase pressure. The pump is definatley moving oil in this engine but I'm thinking the relief in the gallery is canceling out the 8ba pumps ability to produce pressure. There is no telling how many miles are on this engine but is like to keep it alive as long as I can.