Subaru Legacy 2003 Service Manual page 2212

27.Multi-plate Clutch
A: REMOVAL
Remove multi-plate clutch following the same in-
structions as for the extension case. <Ref. to AT-
86, REMOVAL, Extension Case.>
B: INSTALLATION
Install multi-plate clutch following the same instruc-
tions as for the extension case. <Ref. to AT-86, IN-
STALLATION, Extension Case.>
C: INSPECTION
• Inspect drive plate facing for wear and damage.
• Make sure snap ring is not worn and return
spring has no permanent distortion, damage, or de-
formation.
• Inspect D-ring for damage.
• Measure multi-plate clutch clearance and adjust
it to within the specification range. <Ref. to AT-97,
ADJUSTMENT, Multi-plate Clutch.>
MULTI-PLATE CLUTCH
D: ADJUSTMENT
1) Remove drive plate and driven plate from center
differential carrier.
2) Using the special tool, measure distance "L"
from extension case joining surface to multi-plate
clutch (LSD) piston.
ST 398643600
L = Measured value − 15 mm
(L = Measured value − 0.59 in)
A: Measured value
B: Special tool thickness [15 mm (0.59 in)]
L: Distance from the extension case edge to the
rear driveshaft edge.
3) Using ST, measure height "2" from transmis-
sion case joining edge to center differential clutch
drum edge.
ST 398744300
2 = Measurement value − 50 mm
(2 = Measurement value − 1.97 in)
A: Measurement value
B: Special tool thickness [50 mm (1.97 in)]
2: Measure distance from transmission case
joining surface to multi-plate clutch (LSD) piston.
4) Calculation formula
T = (L + 0.45 mm) − 2
[T = (L + 0.0177 in) − 2]
T: Measurement value between clutch drum and
multi-plate clutch (LSD) piston
L: Distance from extension case joining surface
to multi-plate clutch (LSD) piston
0.45: Gasket thickness
2: Distance from transmission case joining sur-
face to center differential clutch drum edge
AT-97
AUTOMATIC TRANSMISSION
Gauge
GAUGE
B
A
ST1
B
A
L
AT-00146
ST
AT-00148