Obviously not. I figured as long as it was off and the whole radiator and everything was out it made sense to send it off for a rebuild. The impeller times look somewhat worn when compared to other pictures of similar water pumps. In any event the only two possibilities that appear to remain our lack of proper coolant flow due to a blockage or exhaust gas entering the coolant. I've already done one test to check for an exhaust leak that seem to indicate that there was none. The evidence is pointing toward a blockage in the water jacket

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)