Impreza WRX STI F4-2.5L DOHC Turbo (2007)
Seals and Gaskets: Service and Repair
Differential Side Retainer Oil Seal
Differential Side Retainer Oil Seal
INSPECTION
Inspect for oil leakage from the differential side retainer oil seal. If there is oil leakage, perform the following procedure.
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Replace the oil seal.
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Check the front drive shaft.
REPLACEMENT
1) Lift-up the vehicle.
2) Remove the front and center exhaust pipes.
3) Drain the gear oil from drain plug.
CAUTION:
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Directly after the vehicle has been running or the engine has been long idle running, the differential gear oil is hot. Be careful not to burn yourself.
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Be careful not to spill the differential gear oil on exhaust pipe to prevent it from emitting smoke or fire. When the differential gear oil is spilled on
exhaust pipe, wipe it away completely.
4) Tighten the drain plug.
NOTE:
Use a new gasket.
Tightening torque:
Oil pan side
44 Nm (4.5 kgf-m, 32.5 ft. lbs.)
Clutch housing side
70 Nm (7. 1 kgf-m, 51.6 ft. lbs.)
5) Separate the front drive shaft from transmission.
6) Remove the differential side retainer oil seal using driver wrapped with vinyl tape or etc.
7) Using the ST, install the differential side retainer by slightly tapping with hammer.
ST 18675AA000 DIFFERENTIAL SIDE OIL SEAL INSTALLER
8) Apply gear oil to the oil seal lips.
9) Set ST to side retainer.
ST 28399SA010 OIL SEAL PROTECTOR
10) Install the front drive shaft into transmission.
NOTE:
Replace the circlip of drive shaft with a new one.
11) Install the front drive shaft into transmission, remove the ST and insert the drive shaft securely.
ST 28399SA010 OIL SEAL PROTECTOR
12) Install the front and center exhaust pipes.
13) Lower the vehicle.
14) Pour gear oil through the oil level gauge hole.
Recommended gear oil:
Refer to Transmission Gear Oil Specification
Gear oil capacity.
4.1 liters (4.3 US quarts, 3.6 Imp quarts)