Subaru Legacy BN/BS (2015-2019) Service Manual: Adjustment
1. Remove the liquid gasket from the mating surface completely. 2. Using the ST, install the drive pinion retainer to converter case.
NOTE: Do not confuse the three different-length bolts when installing. Tightening torque: 43 N·m (4.4 kgf-m, 31.7 ft-lb)
3. Rotate the drive pinion several times using ST1 and ST2.
4. Adjust the drive pinion and hypoid driven gear backlash. Front Differential Assembly > ADJUSTMENT 5. Using the ST, remove the drive pinion retainer from converter case.
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. Front Differential Assembly > ADJUSTMENT NOTE: After correction, wipe off the lead-free red dye. • 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.)
• Face contact Check item: Backlash is too large. Contact pattern
Corrective action: Increase thickness of pinion height adjusting washer according to the procedure for bringing drive pinion close to hypoid driven gear side.
• Flank contact Check item: Backlash is too small. Contact pattern
Corrective action: Reduce the thickness of pinion height adjusting washer according to the procedure for bringing drive pinion away from hypoid driven gear.
• Toe contact (inside contact) Check item: Teeth contact area is too small. Contact pattern
Corrective action: Reduce the thickness of pinion height adjusting washer according to the procedure for bringing drive pinion away from hypoid driven gear side.
• Heel contact (outside end contact) Check item: Teeth contact area is too small. Contact pattern
Corrective action: Increase the thickness of the pinion height adjusting washer according to the procedures for moving the drive pinion closer to the hypoid driven gear.
7. If tooth contact is correct, mark the differential side retainer position and loosen. After fitting a new O-ring and oil seal, screw in the differential side retainer to the marked position. 8. Tighten the lock plate with specified torque. Tightening torque: 25 N·m (2.5 kgf-m, 18.4 ft-lb)
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Removal
1. Remove the transmission assembly from the vehicle. Automatic Transmission Assembly > REMOVAL2. Remove the air breather hose. Air Breather Hose > REMOVAL3. Remove the oil pan and control valve bod ...
Installation
1. Clean the mating surface of drive pinion retainer and converter case.2. Adjust the backlash and tooth contact between drive pinion shaft assembly and the front differential side gear. Drive Pinion ...
Other materials:
Preparation tool
1. SPECIAL TOOLILLUSTRATIONTOOL NUMBERDESCRIPTIONREMARKS18360AA040HANGER• Used for removing and installing EGR cooler.• Used together with BOLT (18363AA050).18363AA050BOLT• Used for removing and installing EGR cooler.• Used together with HANGER (18360AA040).41099AJ130SPECIAL ...
