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Home >> Subaru >> 2018 >> Impreza Base, 4D Wagon, Automatic CVT Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> CVT Transaxle >> Transmission Case >> Assembly

Transmission Case: Assembly

  1. Face the O-ring side of the CVTF filter to the transmission case side, and install the CVTF filter.
    NOTE: Apply CVTF to the O-ring of CVTF filter.
    Fig 1: Identifying CVTF Filter
    G08317974Courtesy of SUBARU OF AMERICA, INC.
  2. Install the CVTF filter cover and gasket.
    NOTE: Use a new gasket.

    Tightening torque: 

    17 N.m (1.7 kgf-m, 12.5 ft-lb)

    Fig 2: Identifying CVTF Filter Cover And Gasket
    G08317973Courtesy of SUBARU OF AMERICA, INC.
  3. Using the ST, install the oil seal.
    NOTE:
    • Use a new oil seal.
    • Apply CVTF to the oil seal lip and press-fitting surface.

    Preparation tool: 

    ST: INSTALLER (18657AA000)

    Fig 3: Installing Oil Seal
    G08317977Courtesy of SUBARU OF AMERICA, INC.
  4. Install the oil guide.
    Fig 4: Installing Oil Guide
    G08317971Courtesy of SUBARU OF AMERICA, INC.
  5. Press-fit the roll pin into the ball bearing on the secondary pulley side.
    1. Hold the roll pin with a knock pin punch or the like, and press-fit with a hammer.
      NOTE:
      • Use a new ball bearing.
      • When securing the ball bearing with a vise, place a wood piece there between to avoid scratching the bearing race.
      Fig 5: Locating Ball Bearing With Vise
      G11255833Courtesy of SUBARU OF AMERICA, INC.
    2. Measure the height "A" of the roll pin.

      Specification: 

      4.4 mm (0.173 in) or less

      Fig 6: Measuring Height Of Roll Pin
      G11255834Courtesy of SUBARU OF AMERICA, INC.
  6. Using ST1, ST2 and ST3, install the ball bearing on the secondary pulley side.
    NOTE:
    • Align the roll pin to the cutout of the transmission case.
    • Press-fit the pin so that it is positioned on near side (the retainer should be seen on your side).

    Preparation tool: 

    ST1: BUSHING 1-2 INSTALLER (499277100)

    ST2: INSTALLER (398177700)

    ST3: PRESS SNAP RING (28499TC010)

    Fig 7: Installing Ball Bearing On Secondary Pulley Side
    G11255835Courtesy of SUBARU OF AMERICA, INC.
    Fig 8: Identifying Retainer And Roll Pin
    G11255836Courtesy of SUBARU OF AMERICA, INC.
  7. Install all plugs.
    NOTE:
    • Use new O-rings.
    • Apply CVTF to the O-rings.
    • For the plug (A), fill the CVTF, and then tighten the plug using a new O-ring.

    Tightening torque: 

    T1: 13 N.m (1.3 kgf-m, 9.6 ft-lb)

    T2: 22 N.m (2.2 kgf-m, 16.2 ft-lb)

    T3: 50 N.m (5.1 kgf-m, 36.9 ft-lb)

    Fig 9: Installing Plugs
    G11255837Courtesy of SUBARU OF AMERICA, INC.
  8. Install the oil stopper plate.
    NOTE: Use a new bolt.

    Tightening torque: 

    9 N.m (0.9 kgf-m, 6.6 ft-lb)

    Fig 10: Locating Oil Stopper Plate Bolts
    G10218771Courtesy of SUBARU OF AMERICA, INC.
  9. Install the thrust bearing to the transmission case.
    NOTE: Face the temper color surface to the transmission side.
    Fig 11: Identifying Thrust Bearing
    G11255839Courtesy of SUBARU OF AMERICA, INC.
  10. Install the roller bearing of the reduction driven gear.
Fig 12: Identifying Roller Bearing
G11255825Courtesy of SUBARU OF AMERICA, INC.