2009 SUBARU TRIBECA Service Workshop Manual

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Page 809 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual DI-25
Rear Differential (VA–type)
DIFFERENTIALS
15) Perform the backlash adjustment between the
hypoid driven gear and drive pinion, and preload
adjustment of differential side bearing.
(1) T

Page 810 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual DI-26
Rear Differential (VA–type)
DIFFERENTIALS
17) Tighten the bolt of lock plate to specified
torque.
Tightening torque:
25 N·m (2.5 kgf-m, 18.1 ft-lb)
18) Recheck the hypoid driven gear t

Page 811 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual DI-27
Rear Differential (VA–type)
DIFFERENTIALS
•Flank contact
Check item: Backlash is too small.
Contact pattern
Corrective action: Reduce the thickness of pinion
height adjusting washer ac

Page 812 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual DI-28
Rear Differential (VA–type)
DIFFERENTIALS
23) Affix with the attachment clip so that the white
marking of the hose is within the range of Z (87°).
E: INSPECTION
Wash all the disassembled part

DI-28
Rear Differential (VA–type)
DIFFERENTIALS
23) Affix with the attachment clip so that the white
marking of the hose is within the range of Z (87°).
E: INSPECTION
Wash all the disassembled parts clean, and exam-
ine them for wear, damage or other defects. Repair
or replace the defective parts as necessary.
1) Hypoid driven gear and drive pinion
•If there is evidently an abnormal tooth contact,
find out the cause and adjust until the teeth contact
correctly. Replace the gear if there is an excessive
worn or an incapable adjustment.
•If crack, cutout or seizure is found, replace the
parts as a set. Slight damage of some teeth can be
corrected by oil stone or the like.
2) Side gear and pinion mate gear
•Replace the differential case assembly if cracks,
scoring or other defects are evident on tooth sur-
face.
3) Bearing
Replace if seizure, peeling, wear, rust, dragging
during rotation, noise or other defect is evident.
4) Oil seal
Replace if deformed or damaged, and at every dis-
assembling.
5) Differential carrier
Replace if the bearing bores are worn or damaged.
6) Differential case
Replace if its sliding surfaces are worn or cracked.
7) Companion flange
Replace if the oil seal lip contact surface shows
cracking.
1. HYPOID DRIVEN GEAR BACKLASH
Using a dial gauge, check the backlash of hypoid
driven gear.
Hypoid driven gear backlash:
0.10 — 0.15 mm (0.0039 — 0.0059 in)
If the hypoid driven gear backlash is not within the
specification, adjust the side bearing preload or re-
pair if necessary.
2. TOOTH CONTACT BETWEEN HYPOID
DRIVEN GEAR AND DRIVE PINION
Inspect the tooth contact between the hypoid driv-
en gear and drive pinion. BLY, Rear Differential (VA–type).>
3. COMPANION FLANGE
1) If rust or dirt is attached to the companion flange,
remove them.
2) Set a dial gauge at a companion flange surface
(mating surface of propeller shaft and companion
flange), and then measure the companion flange
runout.
Limit of runout:
0.08 mm (0.003 in)
(1) 0 — 1 mm (0 — 0.04 in)
(2) Marking
DI-00478
B
B
A
A
Z
(1)
(2)
DI-00099
DI-00360

Page 813 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual DI-29
Rear Differential (VA–type)
DIFFERENTIALS
3) Set the gauge inside of the companion flange,
and measure the runout.
Limit of runout:
0.08 mm (0.003 in)
4) If either runout exceeds th

Page 814 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual DI-30
Rear Differential Front Oil Seal
DIFFERENTIALS
5. Rear Differential Front Oil
Seal
A: INSPECTION
Make sure that there is no leakage from front oil
seal portion. If there is any leakage

Page 815 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual DI-31
Rear Differential Front Oil Seal
DIFFERENTIALS
12) Install the companion flange.
NOTE:
Use a plastic hammer to install companion flange.
13) Apply Lock Tite to the drive pinion shaft screw
threa

Page 816 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual DI-32
Rear Differential Side Oil Seal
DIFFERENTIALS
6. Rear Differential Side Oil Seal
A: INSPECTION
Make sure that there is no leakage from side oil
seal. If there is any leakage, replace th

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