1979-80 CARBURETED GULP VALVE

USED - 1979-80 CARBURETED,
GULP VALVE.
USED VALVES ARE REMOVED FROM USED CARS PARKED FOR REASONS THAT WE MUST ASSUME ARE NOT RELATED TO FAILED GULP VALVES.
TROUBLESHOOTING GULP VALVES IS DIFFICULT BECAUSE THE DRAWING AND DESCRIPTIONS IN FIAT'S BOOKS DO NOT REPRESENT WHAT IS INSIDE OF THE VALVE! THERE IS A FLAP VALVE ON THE INTERNAL DIAPHRAGM BETWEEN THE UPPER & LOWER CONTROL PORTS WHICH DOES NOT CLOSE UNLESS THERE IS INTAKE MANIFOLD VACCUM. ON TOP OF THAT, THERE IS A BLEED ORIFICE BETWEEN BOTH SIDES OF THE DIAPHRAGM. TO TEST THE DIAPHRAGM YOU NEED TO PLUG BOTH THE LOWER PORT & THE LARGE HOSE TO THE INTAKE MANIFOLD, THEN DRAW YOUR VACUUM. IF YOU RELEASE THE LOWER PORT VACCUM WILL IMMEDIATLY DROP AS THE INTERNAL FLAP IS NOT BEING SUCKED DOWN. BUT WITH VACCUM IF YOU RELEASE THE LARGE PORT THE VACCUM WILL SLOWLY BLEED DOWN BECAUSE OF THE ORIFICE!
IF OUT OF STOCK THIS ITEM CAN BE RESTOCKED FROM OUR USED PARTS WAREHOUSE IN 1-2 DAYS. TO MAKE SURE WE GET ONE FOR YOU PLEASE FILL OUT & RETURN THE SPECIAL ORDER FORM FOUND HERE.
REPLACES NIPPONDENSO 084200-0160.
So you can estimate your shipping costs from www.ups.com or www.usps.com (this form required for all US Post shipments http://www.fiatplus.com/postal-agreement-pg-6.html ), this item weighs less than 2 pounds, and can be shipped in a 6 x 6 x 6 box.-
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