Prevents fuel from flowing into the evaporative gas passage during sudden cornering or vehicle rollover.
Construction
The rollover valve is built into the fuel tank.
U.S.A. and CANADA
Except U.S.A. and CANADA
The rollover valve consists of a float, O-ring and spring.
Operation
The rollover valve utilizes a combination of float weight, spring force, and buoyancy. When the float is immersed in the fuel, the float (valve) closes to block the sealing surface of the passage.