Refueling Control Valve: Testing and Inspection

REFUEL VAPOR CONTROL VALVE

INSPECTION




1. Check refuel vapor control valve for damage.
2. Apply 10 kPa (75 mmHg) vacuum to nozzle "A" while holding body with its upper cap facing downward and closing nozzle "B" with finger using vacuum pump gauge and check that vacuum is maintained at that level (there is no leakage).
If vacuum leaks, replace.




3. Tilt refuel vapor control valve gradually while holding float in the body through hole "A" to keep it still. Then check that the valve on top of float moves smoothly.
If found malfunctioning, replace




4. Put refuel vapor control valve in kerosene and check that float moves smoothly to contact valve seat.
If found malfunctioning, replace.