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Home >> Subaru >> 2016 >> WRX Premium, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Emission Control Systems (Aux. Emission Control Devices) (WRX-STI)) >> Leak Check Valve Assembly >> Installation

Leak Check Valve Assembly: Installation

WARNING: This page is about a different variant/trim than selected.
  1. Connect the drain tube A (A) and drain tube B (B) to the leak check valve assembly.
    CAUTION:
    • Check that there is no damage or dust on the quick connector. If necessary, clean the seal surface of the pipe.
    • Make sure that the quick connector is securely connected.
    NOTE: Connect the quick connector as shown in the figure.
    Fig 1: Connecting Drain Tube To Leak Check Valve Assembly
    G08315501Courtesy of SUBARU OF AMERICA, INC.
  2. Install the tube clamp to the drain tube A (A) and drain tube B (B).
    Fig 2: Locating Drain Tube A And B Clamp
    G10265055Courtesy of SUBARU OF AMERICA, INC.
  3. Set the leak check valve assembly together with drain tube to the vehicle and install the bolt which holds the leak check valve assembly.

    Tightening torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb) 

  4. Connect the connector (A) to the leak check valve assembly.
    Fig 3: Identifying Leak Check Valve Assembly Connector
    G10265053Courtesy of SUBARU OF AMERICA, INC.
  5. Connect the drain tube (A) to the canister.
    CAUTION:
    • Check that there is no damage or dust on the quick connector. If necessary, clean the seal surface of the pipe.
    • Make sure that the quick connector is securely connected.
    NOTE: Connect the quick connector as shown in the figure.
    Fig 4: Connecting Drain Tube To Canister
    G08315501Courtesy of SUBARU OF AMERICA, INC.
  6. Install the tube clamp (B) to the canister bracket A, and install the drain tube to the tube clamp.
    Fig 5: Identifying Tube Clamp And Canister Bracket A
    G10265052Courtesy of SUBARU OF AMERICA, INC.
  7. Connect the drain tube to the drain pipe.
    CAUTION:
    • Check that there is no damage or dust on the quick connector. If necessary, clean the seal surface of the pipe.
    • Make sure that the quick connector is securely connected.
    NOTE: Connect the quick connector as shown in the figure.
    Fig 6: Connecting Drain Tube To Drain Pipe
    G08315501Courtesy of SUBARU OF AMERICA, INC.
    Fig 7: Locating Quick Connector
    G10265037Courtesy of SUBARU OF AMERICA, INC.
  8. Securely insert the fuel filler hose (A) and evaporation hose (B) until the hose end contacts the spool, then attach the clamp and clip as shown in the figure.

    Tightening torque: 

    2.5 N.m (0.3 kgf-m, 1.8 ft-lb) 

    Fig 8: Identifying Fuel Filler Hose And Evaporation Hose
    G10264909Courtesy of SUBARU OF AMERICA, INC.
    Fig 9: Identifying Fuel Filler Hose Clamp Installation Position
    G10290090Courtesy of SUBARU OF AMERICA, INC.
  9. Lift up the transmission jack gradually, and set the rear differential to the rear sub frame assembly.
    NOTE: When inserting the stud bolt into the bushing portion of the rear sub frame assembly, adjust the angle and location of transmission jack and jack stand.
    Fig 10: Inserting Stud Bolt Into Bushing Portion Of Rear Sub Frame Assembly
    G09475723Courtesy of SUBARU OF AMERICA, INC.
  10. Temporarily tighten the self-locking nuts which hold the rear differential to the rear sub frame assembly.
    NOTE: Use a new self-locking nut.
    Fig 11: Locating Rear Differential Self-Locking Nuts
    G10264999Courtesy of SUBARU OF AMERICA, INC.
  11. Set the rear differential member to the rear sub frame assembly and rear differential, and temporarily tighten the self-lock nuts which secure the rear differential member to the rear sub frame assembly and rear differential.
    NOTE: Use a new self-locking nut.
    Fig 12: Locating Rear Differential Member Self-Locking Nut
    G10265000Courtesy of SUBARU OF AMERICA, INC.
  12. Remove the transmission jack from the rear differential.
  13. Tighten the self-locking nuts which secure the rear differential member to the rear sub frame assembly and rear differential.

    Tightening torque: 

    T1: 50 N.m (5.1 kgf-m, 36.9 ft-lb) 

    T2: 110 N.m (11.2 kgf-m, 81.1 ft-lb) 

    Fig 13: Identifying Rear Differential Member Self-Locking Nuts
    G10265024Courtesy of SUBARU OF AMERICA, INC.
  14. Tighten the self-locking nuts which secure the rear differential to the rear sub frame assembly.

    Tightening torque: 

    70 N.m (7.1 kgf-m, 51.6 ft-lb) 

    Fig 14: Locating Rear Differential Self-Locking Nuts
    G10264999Courtesy of SUBARU OF AMERICA, INC.
  15. Connect the connector to the oil temperature sensor.
    Fig 15: Locating Oil Temperature Sensor Connector
    G10264998Courtesy of SUBARU OF AMERICA, INC.
  16. Install the propeller shaft. < Ref. to INSTALLATION , Propeller Shaft. >
  17. Install the rear exhaust pipe. < Ref. to INSTALLATION , Rear Exhaust Pipe. >
  18. Lower the vehicle.
  19. Connect the ground terminal to the battery.
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