2021 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

Converter Case Cover: Removal

  1. Remove the transmission body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Assembly>REMOVAL .
  2. Remove the air breather hose. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Air Breather Hose>REMOVAL .
  3. Remove the oil pan and control valve body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Control Valve Body>REMOVAL .
  4. Remove the transmission harness. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Harness>REMOVAL .
  5. Remove the extension case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Extension Case>REMOVAL .
  6. Remove the rear drive shaft. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Rear Drive Shaft>REMOVAL .
  7. Remove the transfer clutch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transfer Clutch>REMOVAL .
  8. Remove the transfer reduction driven gear. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transfer Reduction Driven Gear>REMOVAL .
  9. Remove the intermediate case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Intermediate Case>REMOVAL .
  10. Remove the forward clutch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Forward Clutch>REMOVAL .
  11. Remove the transmission case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Case>REMOVAL .
  12. Remove the primary pulley, secondary pulley and variator chain. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Primary Pulley and Secondary Pulley>REMOVAL .
  13. Remove the drive pinion. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Drive Pinion>REMOVAL .
  14. Remove the oil stopper plate and lubrication pipe.
    G13200346Courtesy of SUBARU OF AMERICA, INC.
  15. Flip over the converter case.
  16. Remove the oil pump chain cover and the oil pump chain. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Oil Pump Chain>REMOVAL .
  17. Remove the converter case cover.
    G13200347Courtesy of SUBARU OF AMERICA, INC.
    G13200348Courtesy of SUBARU OF AMERICA, INC.
  18. Remove the O-rings.
    G09482325Courtesy of SUBARU OF AMERICA, INC.
  19. Remove the seal ring from converter case cover.
    G13864166Courtesy of SUBARU OF AMERICA, INC.
  20. Using the ST, remove the ball bearing from the converter case cover.
    1. Remove the claw of ST1, and attach the claw of ST2.

      Preparation tool: 

      ST1: PULLER ASSY (398527700)

      ST2: CLAW (18760AA000)

      G13864167Courtesy of SUBARU OF AMERICA, INC.
    2. Remove the ball bearing from the converter case cover using the ST1 and ST2.

      Preparation tool: 

      ST1: PULLER ASSY (398527700)

      ST2: CLAW (18760AA000)

    G13864168Courtesy of SUBARU OF AMERICA, INC.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.