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Home >> Mazda >> 2011 >> RX-8 R3, 1.3 2 >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System >> Fuel Tank Inspection

Fuel Tank Inspection

NOTE:
  • This inspection is for two rollover valves and fuel shut-off valve integrated in the fuel tank.
  1. Remove the connector and the fuel hose from the fuel pump unit. (See QUICK RELEASE CONNECTOR REMOVAL/INSTALLATION .)
  2. Remove the fuel tank with the fuel pump unit and fuel suction pipe bracket still installed. (See FUEL TANK REMOVAL/INSTALLATION .)
  3. Perform the following procedure to verify the fuel tank airtightness.
    1. Plug the fuel pump unit pipe, ports B and C.
    2. Apply a pressure to port A and wait for a while.
    3. Verify that there is no air flow leakage from the fuel tank.
    Fig 1: Identifying Fuel Pump Unit Pipe And Ports
    G05980988Courtesy of MAZDA MOTORS CORP.
  4. Plug the fuel pump unit pipe and port B.
  5. Level the fuel tank.
  6. Apply a pressure to port A and wait for a while.
  7. With the pressure still applied, verify that there is air flow port C and the pressure.
    Fig 2: Identifying Fuel Pump Unit Pipe And Ports
    G05980989Courtesy of MAZDA MOTORS CORP.
  8. Apply a pressure to port A and wait for a while.
  9. With the pressure still applied, verify that there is no air flow from port C.
Fig 3: Identifying Fuel Pump Unit Pipe And Ports
G05980990Courtesy of MAZDA MOTORS CORP.
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