I was going to hook up the vacuum wipers to my double acting fuel pump and noticed a very slight oil drip starting to form from the Out side port. I hooked the vacuum line straight from the manifold and the wiper worked great. When I plumped the line to the manifold & fuel pump it had a harder time sweeping. The fuel pump isn't all that old, but seeing a bit of oil can't be great. Can anyone confirm my fear of a bad pump? Thanks
