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Home >> Subaru >> 2022 >> WRX Base, Automatic CVT Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> CVT Transaxle (Tr690) >> Extension Case >> Disassembly
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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.
    G14611249Courtesy of SUBARU OF AMERICA, INC.
  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.
    G14611252Courtesy of SUBARU OF AMERICA, INC.
  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.