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Home › Subaru › 2023 › WRX Base, Automatic CVT Trans › Repair and Diagnosis › Transmission › Automatic Trans › CVT Transaxle System (Tr690) › Extension Case › Disassembly

Extension Case: Disassembly

  1. Remove the dust cover.
    G14611247Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the snap ring from the transfer clutch piston using the ST and a press.

    Preparation tool: 

    ST: COMPRESSOR SPECIAL TOOL (18762AA001)

    G14611248Courtesy of SUBARU OF AMERICA, INC.
  3. Remove the clutch spring retainer, return spring and spring retainer.
    G16539574Courtesy of SUBARU OF AMERICA, INC.
    (A)  Clutch spring retainer 
    (B)  Return spring 
    (C)  Spring retainer 
  4. Blow compressed air through the hole shown in the figure, and remove the transfer clutch piston.
    G14611250Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the D-ring and O-ring from the transfer clutch piston.
    G14611251Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the pressure plate and ball bearing.
    G16539577Courtesy of SUBARU OF AMERICA, INC.
    (A)  Pressure plate 
    (B)  Ball bearing 
    (C)  Transfer clutch piston 
  7. Remove the extension case oil seal. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>EXTENSION CASE OIL SEAL>REPLACEMENT .
  8. Remove the plug.
    G14611253Courtesy of SUBARU OF AMERICA, INC.
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