A valve assembly is provided for use in conjunction with a fuel tank having a fill neck and a vent conduit. The fill neck defines a passageway having one end open to the fuel tank and the second end adapted to receive fuel. Similarly, the vent conduit also has one end open to the fuel tank while the other end forms a second vent opening for allowing vapors to escape from the fuel tank during a filling operation. A fuel valve is fluidly positioned in series with the fill neck passageway and, similarly, a vent valve is fluidly positioned in series with the vent conduit. Both the fuel valve and vent valve are movable in unison between an open and a closed position so that, in the open position, fuel flow can occur through the fill neck and, simultaneously, fuel fumes are exhausted through the vent conduit. The vent valve includes an actuator which is coupled to a vent valve member by a spring to compensate for manufacturing tolerances of the valve assembly components in order to ensure complete closure of both the fill neck passageway and vent conduit when the fuel valve and vent valves are in their respective closed positions.