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Home >> Mazda >> 1985 >> GLC Base >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Evaporation System >> Component Testing >> Check & Cut Valve

Check & Cut Valve

  1. Remove check and cut valve from lines. Connect a pressure gauge with "T" on nipple leading to fuel tank. Hold finger over opposite nipple. See Fig 1 .
    Fig 1: Testing GLC Check and Cut Valve Hold valve horizontally during test.
    G34046
  2. Blow through open end of "T" fitting. When pressure gauge reads .78-1.0 psi (.06-.07 kg/cm2 ), valve should open.
  3. Remove "T" fitting and gauge from fuel tank nipple, and connect to nipple at bottom of valve (atmosphere vent). Hold valve horizontally.
  4. Repeat test. Valve should open when pressure gauge reads .14-.71 psi (.01-.05 kg/cm2 ). If valve does not operate as described, replace check and cut valve.
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