Subaru LEGACY 2004 Service Manual page 131

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.]
(B)
(A) Toe side
(B) Heel side
Rear Differential (VA-type)
Checking item: Backlash is too large.
Contact pattern
Corrective action: Increase thickness of drive pin-
DI-00172
ion height adjusting washer in order to bring drive
pinion close to hypoid driven gear.
Checking item: Backlash is too small.
Contact pattern
(A)
Corrective action: Reduce thickness of drive pinion
height adjusting washer in order to bring drive pin-
AT-00207
ion away from hypoid driven gear.
DI-61
• Face contact
• Flank contact
DIFFERENTIALS
AT-00208
AT-00212
AT-00209
AT-00213