Automatic Transmission Assembly: Installation

Attach the ST to converter case.
Preparation tool:

ST: STOPPER SET (498277200)

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When completely overhauling the transmission, refill CVTF through the transmission right side plug. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>PREPARATION FOR OVERHAUL .
Replace the front differential side retainer oil seal. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>DIFFERENTIAL SIDE RETAINER OIL SEAL>REPLACEMENT .
NOTE:
- Be sure to replace the differential side retainer oil seal with a new part whenever the front drive shaft is removed from the transmission.
- When a new differential side retainer oil seal has been installed, replacement is not required.
Install the rear cushion rubber on the transmission.
Tightening torque:

40 N.m (4.1 kgf-m, 29.5 ft-lb)

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Mount the transmission onto the transmission jack.
Strike and bend the transmission hanger of transmission rear with a rubber hammer etc. so that it gets in contact with the transmission case.
CAUTION: Do not apply extra overload or impact to the transmission case.

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Remove the pitching stopper bracket, if mounted.
Install the transmission onto the engine.
NOTE:
- While raising the transmission jack gradually, turn the screw of engine support, then tilt the engine forward.
- Temporarily attach the two engine connecting bolts and two nuts (lower side).
Install the transmission rear crossmember.
- Impreza model
  Tightening torque:
  
  T1: 35 N.m (3.6 kgf-m, 25.8 ft-lb)
  
  T2: 75 N.m (7.6 kgf-m, 55.3 ft-lb)
- Crosstrek model
  Tightening torque:
  
  T1: 35 N.m (3.6 kgf-m, 25.8 ft-lb)
  
  T2: 70 N.m (7.1 kgf-m, 51.6 ft-lb)
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Tighten the two engine connecting bolts and two nuts (lower side).
Tightening torque:

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

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Install the exhaust hanger bracket.
Tightening torque:

23 N.m (2.3 kgf-m, 17.0 ft-lb)

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Remove the transmission jack.
Lower the vehicle.
Install the three engine mounting bolts (upper side).
Tightening torque:

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

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Remove the ST1 and ST2.
Preparation tool:

ST1: ENGINE SUPPORT BRACKET (41099AA012)

ST2: ENGINE SUPPORT (41099AA020)

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Install the TCM. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>TRANSMISSION CONTROL MODULE (TCM)>INSTALLATION .
Insert the transmission case cover (small) between transmission case cover (large) and transmission to install.
CAUTION: When inserting, be careful that the insulator inside transmission case cover is not turned over.

Tightening torque:

7 N.m (0.7 kgf-m, 5.2 ft-lb)

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Install the torque converter assembly to the drive plate.

Remove the ST from converter case.

NOTE: Be careful not to drop the ST into the converter case when removing the ST.

G08316853

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Insert the wrench into the crank pulley bolt, and rotate the crank pulley to install the bolts which hold the torque converter assembly to the drive plate using the ST.

NOTE:

Be careful not to drop bolts into the converter housing.
When not using the ST, use a crowfoot wrench for tightening.
Use the following formula to calculate the reading of a torque wrench when tightening with a crowfoot wrench.

Calculation formula

T = 25 N.m (2.5 kgf-m, 18.4 ft-lb) x L1/(L1+L2)

T: Reading of the torque wrench
L1: Effective length of the torque wrench
L2: Effective length of the crowfoot wrench

NOTE: If the effective length of the tool used is unknown, consult the manufacturer of the tool.

G13232598

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Preparation tool:

ST: SOCKET (18270AA050)

Tightening torque:

25 N.m (2.5 kgf-m, 18.4 ft-lb)

G11253182

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Install the remaining five bolts by rotating the crank pulley a little at a time in the same direction as engine revolution.
Tightening torque:

25 N.m (2.5 kgf-m, 18.4 ft-lb)
Install the service hole plug.

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Install the engine ground terminals.
Tightening torque:

19 N.m (1.9 kgf-m, 14.0 ft-lb)

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Replace the CVTF cooler inlet hose and CVTF cooler outlet hose. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>CVTF COOLER (WITH WARMER FUNCTION)>REMOVAL . Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>CVTF COOLER (WITH WARMER FUNCTION)>INSTALLATION .
Install the CVTF cooler inlet hose and CVTF cooler outlet hose to transmission.

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Install the CVTF cooler (with warmer feature) to the transmission.
Tightening torque:

23 N.m (2.3 kgf-m, 17.0 ft-lb)

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Install the starter. Refer to STARTING/CHARGING SYSTEMS (H4DO (EXCEPT FOR HEV))>STARTER>INSTALLATION .
Install the engine hanger rear.
Tightening torque:

21 N.m (2.1 kgf-m, 15.5 ft-lb)

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Install the pitching stopper bracket.
Tightening torque:

41 N.m (4.2 kgf-m, 30.2 ft-lb)

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Connect the throttle position sensor harness connector (1), purge control solenoid valve harness connector (2), harness clip (3), vacuum hose (4) and PCV hose (5).

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Install the pitching stopper.
Tightening torque:

T1: 50 N.m (5.1 kgf-m, 36.9 ft-lb)

T2: 58 N.m (5.9 kgf-m, 42.8 ft-lb)

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Install the air breather hose and air breather hose bracket.

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Install the engine harness connector bracket.
Tightening torque:

19 N.m (1.9 kgf-m, 14 ft-lb)

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Connect the transmission harness connector.

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Lift up the vehicle.
Set the ST to the side retainer.
Preparation tool:

ST: OIL SEAL PROTECTOR (28399SA010)

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Replace the circlip of the drive shaft with a new part.
Insert the front drive shaft spline section into transmission and remove the ST (OIL SEAL PROTECTOR).
NOTE:
- Before inserting the RH front drive shaft into transmission, turn the steering wheel to the right hand at full lock.
- Before inserting the LH front drive shaft into transmission, turn the steering wheel to the left hand at full lock.
Insert the drive shaft into the transmission securely by pressing the housing from outside of the vehicle.
CAUTION:
- To prevent the front lower arm assembly from damaging the ball joint dust cover, place the ball joint on the upper side of the front lower arm assembly before starting the operation.
- Be careful not to damage the front lower arm assembly and ball joint by covering the upper side of the front lower arm assembly with a cloth.
Replace the flange nut with a new part, and install the ball joint to the front arm. (Impreza model)
Tightening torque:

100 N.m (10.2 kgf-m, 73.8 ft-lb)

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Install the ball joint assembly. (Crosstrek model)
CAUTION:
- Before tightening, make sure the bottom surface of the housing assembly - front axle and the stepped section of ball joint are in contact.
- Be careful not to damage the boot of the joint.
Tightening torque:

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

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Replace the flange nut with a new part, and install the stabilizer link.
Tightening torque:

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

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Install the front ABS wheel speed sensor. Refer to VEHICLE DYNAMICS CONTROL (VDC)>FRONT ABS WHEEL SPEED SENSOR>INSTALLATION .

Install the brake hose bracket.

Tightening torque:

33 N.m (3.4kgf-m, 24.3 ft-lb)

Impreza model

G11255533

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Crosstrek model

G12392557

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Install the plate assembly to transmission.
Tightening torque:

25 N.m (2.5 kgf-m, 18.4 ft-lb)

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Install the washer and snap pin to the shifter arm.
CAUTION: Do not apply excessive load while holding the part (a).

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Install the propeller shaft. Refer to DRIVE SHAFT SYSTEM>PROPELLER SHAFT>INSTALLATION .
Install the center exhaust cover.
Tightening torque:

18 N.m (1.8 kgf-m, 13.3 ft-lb)

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Install the front exhaust pipe. Refer to EXHAUST (H4DO (EXCEPT FOR HEV))>FRONT EXHAUST PIPE>INSTALLATION .
Install the crossmember support - rear.
Tightening torque:

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

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Install the under cover.
Install the front tires. Refer to WHEEL AND TIRE SYSTEM>TIRE AND WHEEL>INSTALLATION .
Lower the vehicle.
Using the ST, tighten the self-locking nut of the front suspension strut mount. (Impreza model)
CAUTION:
- Use a new self-lock nut.
- Tighten in the state where the wheels are in full contact with the ground.
Preparation tool:

ST: STRUT MOUNT SOCKET (20399AG000)

Tightening torque:

55 N.m (5.6kgf-m, 40.6ft-lb)

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Connect the transmission radio ground terminal.
Tightening torque:

32.3 N.m (3.3 kgf-m, 23.8 ft-lb)

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Install the air intake boot. Refer to INTAKE (INDUCTION) (H4DO (EXCEPT FOR HEV))>Air Intake Boot>INSTALLATION .
Connect the battery ground terminal. Refer to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
Refill differential gear oil to adjust the differential gear oil amount. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>DIFFERENTIAL GEAR OIL>ADJUSTMENT .
Refill CVTF to adjust the CVTF level. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>CVTF>ADJUSTMENT .
Using the Subaru Select Monitor, perform «Clear AT learning value» on «Work Support», and perform the operation of AT learning mode. Refer to TRANSMISSION (DIAGNOSTICS)>LEARNING CONTROL .
Execute the rear differential inspection mode. Refer to DIFFERENTIALS>REAR DIFFERENTIAL INSPECTION MODE .
CAUTION:
Always execute the rear differential inspection mode after the replacement of the following.
- Replacement of transmission assembly
- Replacement of front differential hypoid gear set
Inspect the wheel alignment and adjust if necessary. (Impreza model) Refer to FRONT SUSPENSION>WHEEL ALIGNMENT>ADJUSTMENT .
Perform the road test to make sure there is no fault. Refer to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>ROAD TEST>INSPECTION .