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Non Return Valve Inspection

  1. Remove the non return valve. (See FUEL TANK REMOVAL/INSTALLATION .)
  2. Verify that the non return valve opens up to 90°  when it is pushed from the fuel-filler pipe side, and it returns to the normal position by the spring force.
    • If the non return valve does not open up to 90°  or does not return to the normal position, replace the non return valve.
    Fig 1: Checking Non Return Valve Movement
    G01024555Courtesy of MAZDA MOTORS CORP.
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