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Sorry I wanted to get that sent so it would not time out. I pulled the pump and brought it back to my place to install a gasket and stop the leak. Plan on going back in the morning and raising the air pressure to 60 PSI. Dave has a friend with a shop that repairs and leak test blocks and uses 60 PSI to check them at. We are at a loss and thought for sure we would find something leaking Today. We are spraying everything in the valve area and anywhere that could leak into the oil. Dave would not have believed me if I didn't take the drain pan with all the water in it to show him a week ago. If anyone has a idea where to look or what we could have missed please let me know, we dont think 10 PSI more will make a difference.

Did you rotate the crank to different position. Retest every 90 degrees so make sure a single piston rings are not sealing a pin hole bore defect in one positon.