John, I don't want you to think I'm telling you how to build your truck. I'm certainly not an expert. I just want you to benefit from my experience and not have to deal with the same problems I've dealt with in working on this truck.
I actually use my truck as regular transportation and for haulage so the problems I experience are not due to lack of use which is a huge factor in many antique car troubles.
When the first pump failed, I replaced it with a new one that didn't work at all. I naturally assumed that the problem was rooted somewhere else. After all, the fuel pumps were brand new. I even thought the cam was wiped because the new pump wasn't engaging at all.
After I took pictures of the cam wear and then looked at the wear pattern on the first fuel pump, I realized what pieces of junk they were.
I pulled out the original, gunked up pump and manually moved the arm. It shot a gusher of nasty gas all over the shop.
It was then that I decided to rebuild it and install it. No problems since then.
Notice the wear pattern on the cam. The pump arm was only contacting the cam in a 1/16" wide strip. Looking at the matching wear on the arm, you can see that the three pieces of steel were improperly assembled resulting in the arm contacting the cam with only one of the three parts of the arm.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
