The check valve also helps save the vacuum system when the engine back-fires through the intake manifold/carburator. If the storage tank is full of fumes it could blow...

Mike B smile


Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
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Silver Spring, MD