L lmarsch36 Junior Member Jul 26, 2013 #1 Should there be an "O" ring or gasket installed on the oil pump where it attaches to the block of a 36 flathead? There is a circular indentation on the oil pump shaft where it slides into the block as if it's for an "O" ring.
Should there be an "O" ring or gasket installed on the oil pump where it attaches to the block of a 36 flathead? There is a circular indentation on the oil pump shaft where it slides into the block as if it's for an "O" ring.