Hotrod, When I blew the gaskets, I had the spring inside the cupped end. With the spring in the cupped end that puts the closed end with shaft in the output pressure. Seems to me that the shaft and the taper (about 45 degrees) would not be good to get full pressure on, then I could be wrong.
Installing the pump is idiot proof.
Maybe Stuart is right. There is something else blocking the oil gallery. I wire brushed the main gallery to the lifters and then ran a cloth thru the gallery. I'll order another pump tomorrow. I'l pull the relief valve out of this Hamburg high flow and see what it looks like.
Larry
