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Transfer Clutch: Assembly

  1. Install the transfer clutch piston.
    NOTE: Apply CVTF to the transfer clutch piston lip.
  2. Install the return spring.
    Fig 1: Removing/Installing Return Spring
    G08317908Courtesy of SUBARU OF AMERICA, INC.
  3. Install the transfer clutch piston seal.
    NOTE: Apply CVTF to the lip section of transfer clutch piston seal.
    Fig 2: Installing Transfer Clutch Piston Seal
    G08317912Courtesy of SUBARU OF AMERICA, INC.
  4. Compress the return spring using the ST to install the snap ring.

    ST 18762AA000 COMPRESSOR SPECIAL TOOL

    Fig 3: Installing Transfer Clutch Piston Seal And Snap Ring Using Compressor Special Tool
    G08578813Courtesy of SUBARU OF AMERICA, INC.
  5. Install the pressure plate, driven plate, drive plate and snap ring.
    Fig 4: Identifying Snap Ring
    G08578814Courtesy of SUBARU OF AMERICA, INC.
  6. Blow compressed air through transfer clutch assembly hole, and check the transfer clutch piston operation.
    NOTE: Plug the holes through which the compressed air is not blown.
    Fig 5: Locating Transfer Clutch Assembly Hole
    G08317909Courtesy of SUBARU OF AMERICA, INC.
  7. Before measuring clearance "A", place same thickness shims on both sides to prevent the plate from tilting.
  8. When clearance "A" exceeds the limit for use, replace the drive plate and driven plate as a set, and select and adjust the pressure plate within the initial specified value.

    Initial standard: 

    0.7 - 1.1 mm (0.028 - 0.043 in) 

    Limit thickness: 

    1.45 mm (0.057 in) 

    Fig 6: Measuring Clearance "A" Drive Plate And Driven Plate
    G08578816Courtesy of SUBARU OF AMERICA, INC.
    Pressure plate
    Part No. Thickness mm (in)
    31593AA151 3.3 (0.130)
    31593AA161 3.7 (0.146)
  9. Recheck the clearance. Refer to INSPECTION .
  10. Using the ST, install the ball bearing.
    NOTE: Use a new ball bearing.

    ST1 398177700 INSTALLER

    ST2 499277000 INSTALLER

    Fig 7: Installing Ball Bearing Using Special Tool
    G08578817Courtesy of SUBARU OF AMERICA, INC.