Subaru Legacy BN/BS (2015-2019) Service Manual: Adjustment

Subaru Legacy BN/BS (2015-2019) Service Manual / Continuously variable transmission(tr690) / Front differential assembly / Adjustment

1. Using the ST, screw-in the retainer until resistance is felt.

NOTE:

RH side should be screwed-in more than LH side.

ST 18658AA020

WRENCH COMPL RETAINER

2. Remove the remaining liquid gasket from the mating surface completely.

3. Using the ST, install the drive pinion assembly 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)

4. Rotate the drive pinion shaft ten times or more using ST1 and ST2.

ST1 18667AA010

HOLDER

ST2 499787700

WRENCH

5. While rotating the pinion shaft, tighten the retainer LH and loosen the retainer RH until the shaft can't be turned anymore. The backlash is “zero” when the pinion shaft comes to the point where it doesn't rotate.

6. After the “zero” state is established, loosen the retainer LH by 3 notches and secure it with the lock plate. Loosen the retainer RH and retighten until it stops. Rotate the drive pinion 2 or 3 times. Tighten the retainer RH further 1-3/4 notches. This sets the preload. Finally, secure the retainer with its lock plate.

(A)	Lock plate

NOTE:

Turning the retainer by every one tooth changes the backlash approx. 0.05 mm (0.0020 in).

(A)

1 tooth

7. Insert the two SUBARU genuine axle shafts into differential case.

Part No. 38415AA070

Axle shaft

8. Wrap the drive shaft pinion shaft with cloth and pinch with vise pliers. Install the installation bolt into the bolt hole of secondary pulley and secure the bolt and vise pliers using a band or wire.

Make sure the drive pinion shaft does not move.

9. Check the backlash is within specification using ST1, ST2 and ST3.

ST1 498255400

PLATE

ST2 498247001

MAGNET BASE

ST3 498247100

DIAL GAUGE

Backlash:

0.13 — 0.18 mm (0.005 — 0.007 in)

10. Adjust the teeth contact of the front differential and drive shaft. Drive Pinion Shaft Assembly > ADJUSTMENT

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. Install the front differential assembly to the converter case.NOTE:Be careful not to damage the inside of the case (especially the mating surface of the differential side retainers).2. Temporarily ...

Other materials:

Inspection
1. Check the spark plug for abnormalities. If defective, replace the spark plug.(A)Terminal damage(B)Crack or damage in insulator(C)Damaged gasket2. Check the spark plug electrode and condition of the insulator. If abnormal, check and repair the cause and replace the spark plug.(1) Normal:Brown to g ...