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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Transmission >> Automatic Trans >> CVT Transaxle (Tr690) >> Differential Side Retainer Oil Seal >> Replacement

Differential Side Retainer Oil Seal: Replacement

CAUTION:
  • Immediately after the vehicle has been running or after idling for a long time, the differential gear oil will be hot. Be careful not to burn yourself.
  • Be careful not to spill the differential gear oil on exhaust pipe to prevent it from emitting smoke or fire. If differential gear oil is spilled on the exhaust pipe, wipe it off completely.
  1. Remove the front tires.
  2. Remove the center exhaust pipe. Ref. to EXHAUST(H4DOTC)>Center Exhaust Pipe>REMOVAL .
  3. Remove the differential gear oil drain plug using TORX® bit T70, and then drain differential gear oil.
    Fig 1: Identifying Differential Gear Oil Drain Plug
    G11266036Courtesy of SUBARU OF AMERICA, INC.
  4. Tighten the differential gear oil drain plug.
    NOTE: Use a new gasket.

    Tightening torque: 

    70 N.m (7.1 kgf-m, 51.6 ft-lb)

  5. Remove the stabilizer link. Ref. to FRONT SUSPENSION>Front Stabilizer>REMOVAL .
  6. Disconnect the lower arm ball joint and housing.
  7. Pull out the front drive shaft from transmission using a crowbar.
    NOTE: Place a cloth between the tire lever or bar and the transmission in order to avoid damaging the differential side retainer.
  8. Holding the joint of front drive shaft from transmission side, pull out the drive shaft from transmission with care not to stretch the boot.
    NOTE:
    • Before pulling the front drive shaft RH, turn the steering wheel to the right hand at full lock.
    • Before pulling the front drive shaft LH, turn the steering wheel to the left hand at full lock.
  9. Remove the differential side retainer oil seal using driver wrapped with vinyl tape etc.
  10. Using the ST, install the differential side retainer oil seal by lightly tapping with a hammer.

    ST 18675AA000 DIFFERENTIAL SIDE OIL SEAL INSTALLER 

    NOTE:
    • Apply differential gear oil to the lip surface, so that the oil seal lip is not deformed.
    • Apply differential gear oil to the press-fitting surface of oil seal and the differential side retainer.
    • Oil seal has an identification mark (R, L). When installing oil seals, do not confuse the left and right.
    Fig 2: Installing Differential Side Retainer Oil Seal Using ST
    G06654422Courtesy of SUBARU OF AMERICA, INC.
  11. Set the ST to differential side retainer.

    ST 28399SA010 OIL SEAL PROTECTOR 

    Fig 3: Setting ST With Differential Side Retainer
    G09481967Courtesy of SUBARU OF AMERICA, INC.
  12. Replace the circlip of the drive shaft with a new part.
  13. Insert the front drive shaft spline section into transmission and remove the ST (OIL SEAL PROTECTOR).
  14. Insert the drive shaft into the transmission securely by pressing the housing from outside of the vehicle.
  15. Insert the ball joint into housing and secure with bolt.
    CAUTION:
    • Do not apply grease to the tapered portion of ball stud.
    • Before tightening, make sure the lower side of housing and stepped section of ball joint are in contact.

    Tightening torque: 

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

  16. Install the stabilizer link.

    Tightening torque: 

    60 N.m (6.1 kgf-m, 44.3 ft-lb)

  17. Install the center exhaust pipe. Ref. to EXHAUST(H4DOTC)>Center Exhaust Pipe>INSTALLATION .
  18. Lower the vehicle.
  19. Refill differential gear oil from the charge pipe. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Differential Gear Oil .
  20. Adjust the differential gear oil level, and check for leakage. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Differential Gear Oil>ADJUSTMENT .
  21. Install the front tires.
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