I rebuilt it myself. Whent the engine is cold it has about 20 pounds of oil pressure at idle but as soon as it warms up it only has about 7 pounds. I pulled the engine out and took the pan off the oil pump and pickup tube is fine. But when I took the main cap off it looked liked the bearing was to big for it There where shiny spots and dull spots on it. I have not checked the clearance yet but I think I need to turn the crank. I did not check the clearance whent I put it in because when I bought the crank they said it was stander size a I took there word for it.