FUEL CAP, REPLACEMENT STYLE, VENTED, anti-surge, 2.47 inch diameter, FOR USE UNDER POP-OPEN CAPS, USE TO REPLACE THOSE LEFT ON TOP OF THE GAS PUMP! CAP MAY OR MAY NOT HAVE EARS, ORIGINAL SHELBY #: C7AZ-9030-A, FC-40
Manufacturer Reference #'s: FDM1088AA, C7AZ-9030-A, FC-40
This gas cap is supposed to be vented. It is only vented for pressure. The spring loaded valve will allow pressure out but not allow air in when a vacuum exists. This is unacceptable and and could lead to many problems if it is the only vent to the tank. Drill several 3/32” holes just to the side of the center spring loaded valve. It will then transfer air in both directions.
Submited on May 28, 2019 by Marty M.
YES I would recommend this product.