LEMON Manuals: Even more car manuals for everyone
Home >> Subaru >> 2017 >> Legacy 3.6R Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Continuously Variable Transaxle (CVT) (H4DO)) >> Drive Pinion Shaft Assembly >> Adjustment

Drive Pinion Shaft Assembly: Adjustment

WARNING: This page is about a different variant/trim than selected.
  1. Remove the liquid gasket from the mating surface completely.
  2. Using the ST, install the drive pinion retainer to converter case.

    ST 18270KA020 SOCKET (E20)

    NOTE: Do not confuse the three different-length bolts when installing.

    Tightening torque: 

    43 N.m (4.4 kgf-m, 31.7 ft-lb) 

    Fig 1: Drive Pinion Retainer Bolts
    G10218887Courtesy of SUBARU OF AMERICA, INC.
  3. Rotate the drive pinion several times using ST1 and ST2.

    ST1 498937110 HOLDER

    ST2 499787700 WRENCH

    Fig 2: Rotating Drive Pinion Several Times Using Holder (498937110) And Wrench (499787700)
    G08318121Courtesy of SUBARU OF AMERICA, INC.
  4. Adjust the drive pinion and hypoid driven gear backlash. <Ref. to ADJUSTMENT , Front Differential Assembly.>
  5. Using the ST, remove the drive pinion retainer from converter case.

    ST 18270KA020 SOCKET (E20)

  6. Apply lead-free red dye evenly on the both sides of three to four teeth of the hypoid driven gear. Then install the drive pinion retainer and rotate the drive pinion in both directions several times. Remove the drive pinion retainer and check the tooth contact pattern.

    If the teeth contact is inappropriate, adjust the backlash or thickness of the shim. <Ref. to ADJUSTMENT , Front Differential Assembly.>

    NOTE: After correction, wipe off the lead-free red dye.
    Drive pinion shim
    Part No. Thickness mm (in)
    31451AA320 0.150 (0.0059)
    31451AA330 0.175 (0.0069)
    31451AA340 0.200 (0.0079)
    31451AA350 0.225 (0.0089)
    31451AA360 0.250 (0.0098)
    31451AA370 0.275 (0.0108)
    • Correct tooth contact

    Check item: Tooth contact surface is slightly shifted toward the toe side under a no-load condition. (When driving, it moves towards the heel side.) 

    Fig 3: Tool Side And Heel Side
    G11573072Courtesy of SUBARU OF AMERICA, INC.
    • Face contact

    Check item: Backlash is too large  .

    Contact pattern

    Fig 4: Face Contact
    G06654698Courtesy of SUBARU OF AMERICA, INC.

    Corrective action: Increase thickness of drive pinion shim according to the procedures for moving the drive pinion close to hypoid driven gear.

    Fig 5: Moving Drive Pinion Close To Hypoid Driven Gear
    G06654699Courtesy of SUBARU OF AMERICA, INC.
    • Flank contact

    Check item: Backlash is too small  .

    Contact pattern

    Fig 6: Flank Contact
    G06654700Courtesy of SUBARU OF AMERICA, INC.

    Corrective action: Reduce the thickness of the drive pinion shim according to the procedures for moving the drive pinion away from the hypoid driven gear.

    Fig 7: Moving Drive Pinion Away From Hypoid Driven Gear
    G06654701Courtesy of SUBARU OF AMERICA, INC.
    • Toe contact (inside contact)

    Check item: Teeth contact area is too small  .

    Contact pattern

    Fig 8: Toe Contact (Inside Contact)
    G06654702Courtesy of SUBARU OF AMERICA, INC.

    Corrective action: Reduce the thickness of the drive pinion shim according to the procedures for moving the drive pinion away from the hypoid driven gear side.

    Fig 9: Moving Drive Pinion Away From Hypoid Driven Gear
    G06654701Courtesy of SUBARU OF AMERICA, INC.
    • Heel contact (outside end contact)

    Check item: Teeth contact area is too small  .

    Contact pattern

    Fig 10: Heel Contact (Outside End Contact)
    G06654704Courtesy of SUBARU OF AMERICA, INC.

    Corrective action: Increase the thickness of the drive pinion shim according to the procedures for moving the drive pinion closer to the hypoid driven gear.

    Fig 11: Moving Drive Pinion Close To Hypoid Driven Gear
    G06654699Courtesy of SUBARU OF AMERICA, INC.
  7. Using the ST, loosen the differential side retainer until the mounting groove of the O-ring appears, and then install the O-ring.
    NOTE:
    • When loosening the differential side retainer, record the number of the turns made.
    • Perform this for both left and right differential side retainers.
    • Use new O-rings.
    • Apply the differential gear oil to O-ring.

    ST 18658AA020 WRENCH COMPL RETAINER

  8. Using the ST, tighten the retainer to the position before it is loosened.

    ST 18658AA020 WRENCH COMPL RETAINER

  9. Replace the differential side retainer oil seal with a new part. <Ref. to DIFFERENTIAL SIDE RETAINER OIL SEAL .>
  10. Install the lock plate.

    Tightening torque: 

    25 N.m (2.5 kgf-m, 18.4 ft-lb) 

Fig 12: Lock Plate
G11573081Courtesy of SUBARU OF AMERICA, INC.
scientia non olet · About LEMON Manuals