Cliff's Quadrajet Parts and Rebuild Kits

General Category => Quadrajet Carb Talk and Tips => Topic started by: dkraven on September 18, 2023, 03:35:32 PM

Title: Rubber valve in fuel filter… yes or no?
Post by: dkraven on September 18, 2023, 03:35:32 PM

The fuel filter that came with my rebuild kit through Cliff’s doesn’t have the rubber valve my previous filter did. Is this by design? Is there an issue with the valve?

Title: Re: Rubber valve in fuel filter… yes or no?
Post by: Kenth on September 19, 2023, 12:47:55 AM

From 1976 Pontiac Service Manual:

"A new design fuel filter with integral check valve to meet Federal safety regulations for fuel loss during vehicle roll-over."

This would stop fuel draining from fuel tank to the ground thru the carb at roll-over, not so much draining carb TO the fuel tank.

Since it acts like a restriction on fuel flow i would not use it for a pre-1975 engine or any high performance engine.