Here is the inside of a fuel pump that wouldn't pump after a few hundred miles. Can you tell from looking at it why it wouldn't work? Of course not. Short of a torn diaphragm or a missing or loose valve, opening up the fuel pump won't answer many questions.
The only way to test a fuel pump is to record the fuel pressure at the carburetor and the output.
The one with the silver top was brand new and wouldn't pump a drop straight out of the box. The problem with this Chinese garbage seems to be in the position and/or throw of the pump arm.
The silver topped one didn't pump a drop straight out of the box.
Yours looks like a reman of an original pump since it has the glass bowl but who knows? You can't really trust new parts to work properly anymore. I'd test the pump.
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)
