If you have a recovery reservoir, you need to fill the radiator to the bottom of the filler neck in order for your recovery tank to function properly. The tank will fill up when hot and return the coolant to the radiator as it cools down.

Keep a small amount of coolant in the recovery tank - at the cold line.

My 216 uses a 4 lb cap along with a recovery tank. It works like a modern car's system.
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Last edited by Otto Skorzeny; 09/06/2026 9:48 PM.

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)