NONRETURN VALVE INSPECTION [MZR-CD (RF Turbo)]

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Note

•  Nonreturn valve is integrated in the fuel-filler pipe. Therefore, before inspecting the nonreturn valve perform the following:

1.  Remove the fuel gauge sender unit. (See FUEL GAUGE SENDER UNIT REMOVAL/INSTALLATION [MZR-CD (RF-Turbo)].)

2.  Siphon the fuel from the fuel tank.

Note

•  The nonreturn valve is normally closed by the spring force.

3.  Verify that the nonreturn valve is closed.

•  If it is stuck open, replace the fuel-filler pipe.

4.  Verify that the nonreturn valve opens when pulled up by a finger.

•  If it does not open, replace the fuel-filler pipe.