Subaru 2004 LEGACY, Service Manual

Page: 131 / 609

DI-61
DIFFERENTIALS
Rear Differential (VA-type)
17) Recheck the hypoid driven gear to pinion back-
lash.
Backlash:
0.10 — 0.15 mm (0.0039 — 0.0059 in)
18) Checking and adjusting the tooth contact of hy-
poid driven gear
(1) Apply an even coat of red lead on both sides
of three or four teeth on the hypoid driven gear.
Check the contact pattern after rotating the hy-
poid driven gear several revolutions back and
forth until a definite contact pattern appears on
the hypoid driven gear.
(2) When the contact pattern is incorrect, read-
just.
NOTE:
Be sure to wipe off red lead completely after adjust-
ment is completed.
• Correct tooth contact
Checking item: Tooth contact pattern is slightly
shifted toward to toe side under no-load
rotation. [When loaded, contact pattern moves
toward heel.]
• Face contact
Checking item: Backlash is too large.
Contact pattern
Corrective action: Increase thickness of drive pin-
ion height adjusting washer in order to bring drive
pinion close to hypoid driven gear.
• Flank contact
Checking item: Backlash is too small.
Contact pattern
Corrective action: Reduce thickness of drive pinion
height adjusting washer in order to bring drive pin-
ion away from hypoid driven gear.
(A) Toe side
(B) Heel side
DI-00172
AT-00207
(A)
(B)
AT-00208
AT-00212
AT-00209
AT-00213