B Series Truck 2WD L4-2184cc 2.2L 2200 2-bbl (1990)
Evaporative Check Valve: Testing and Inspection
Carburetor
Check And Cut Valve Location
1.
Remove the check-and-cut valve.
Check And Cut Valve Testing
2.
Connect a pressure gauge to the passage that normally is connected to the fuel tank.
3.
Blow through the valve from port "A", and verify that the valve opens at pressure of 5.39-6.87 kPa (0.055-0.07 kg/cm , 0.78-1.00 psi).
4.
Remove the pressure gauge, and connect it to the passage to atmosphere.
5.
Blow through the valve from port "B". Verify that the valve opens at a pressure of 0.98-4.91 kPa (0.01-0.0kg/cm , 0.14-0.71 psi).
NOTE: The test should be performed with the valve positioned horizontally. Otherwise, the ball in the valve will move out of position and close
the passage.
