Subaru 1600 Service Manual page 340

AUTOMATIC TRANSMISSION AND DIFFERENTIAL
A13-467
Fig. 7·74 Removing the snap ring
2)
Inspection
Wash the disassembled parts and check
for the following:
1) Bearings
Replace any bearing if:
a. The balls, outer race or inner race
are damaged or rusted.
b. Various parts of the bearing are
worn excessively.
c. The bearing does not spin smoothly
or is noisy even after being lubri·
cated with gear oil.
d. Other abnormalities are noticed.
2) Transfer gear
Backlash
0.051 - 0.125 mm
(0.0020 - 0.0049 in)
Replace the transfer gear if:
a. The surface is chipped, worn or
otherwise damaged.
b. The roller surface is worn or other-
wise damaged.
c. The bore of the transfer driven gear
UN or the end face is damaged.
3) Rear drive shaft
Repair or replace if the sliding surface
of the transfer driven gear UN is
excessively damaged.
4) Plates UN3 and 3
Replace if plates or surfaces are worn*
or damaged.
NOTE:
*:
If the measured clutch clearance
during disassembly exceeds 1.3 mm
(0.051 in).
• Always replace plates U N3 together
with the pressure plate and adjacent
steel plates.
5) Extension oil seal
(35x50xll)
Replace the oil seal if the sealing lip
is deformed, hardened, worn or other-
wise damaged.
6) Rear drive shaft seal ring
Replace if the seal ring is worn or
otherwise damaged.
3) Assembly
1) Transfer clutch ASSY
Apply a coat of recommended ATF to
all parts and assemble all parts in the
order of disassembly.
a. Assemble the bearing (30x72xI9)
and drum ASSY to the rear shaft.
b. Install the rear pressure plate, plates
3, plates UN3 and front pressure
plate.
Installer
(899874100)
A13-468
Fig. 7-75 Assembling the drum ASSY
NOTE:
a. Use a suitable Installer when driving
the drum into place.
Special tool: Installer 899874100
Special tool: Installer 499277000
Special tool: Installer 398177700
b. Direct compressed air into the oil
hole to ensure that the piston
moves properly.
A13-469
Fig. 7-76 Checking the piston for
proper movement
NOTE:
a. Pay attention to the directions of
the front and rear pressure plates.
b. Always use recommended ATF to
coat parts with oil.
7-45
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:0
"C
'in
(I)
...
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__ J
ill
c:
<II
0
I
a:
U:
I
(I)
A13-470
Fig. 7-77 Relative locations of the
pressure plates
c. After parts have been assembled,
measure the clearance between the
outer snap ring (98.5) and front
pressure plate and select a suitable
pressure plate to ensure the clear-
ance is within specifications.
Transfer clutch 0.4 - 0.8 mm
clearance (0.016 - 0.031 in)
Available front pressure plates
Part number
Plate thickness
mm (in)
447677000 4.7 (0.185)
447677001 5.0 (0.197)
447677002 5.3 (0.209)
447677003
5.6 (0.220)
447677004
5.9 (0.232)
A13-471
Fig. 7-78 Measuring the clearance
NOTE:
Direct compressed air through the oil
hole to move the drum two to three
times.
2) Using the installer, install the
transfer drive gear UN, washer
(20x38x4) and ball bearing
(20x52xI5).
Special tool: Installer 398177700
. Snap ring
SpeCIal tool: 899754lO2
press