1997 SUBARU LEGACY ESP

Available retaining platesPart No. Thickness mm (in)
31567AA190
31567AA200
31567AA210
31567AA220
31567AA230
31567AA240
31567AA250
31567AA2603.6 (0.142)
3.8 (0.150)
4.0 (0.157)
4.2 (0.165)
4.4 (0.173)
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
G3M0471
11. Forward Clutch Drum
A: DISASSEMBLY
1) Remove two snap rings from the forward clutch drum.
2) Remove the retaining plate, drive plates, driven plates
and dish plate. (Forward clutch)
G3M0472
3) Remove the snap ring from the forward clutch drum.
4) Remove the retaining plate, drive plates, driven plates
and dish plate. (Overrunning clutch)
G3M0473
5) Compress the spring retainer, and remove the snap ring
from the forward clutch, by using ST1 and ST2.
ST1 498627100 SEAT
ST2 398673600 COMPRESSOR
G3M0474
6) Install the one-way clutch inner race to the forward
clutch drum, and apply compressed air to remove the over-
running piston and forward piston.
100
3-2SERVICE PROCEDURE
10. High Clutch - 11. Forward Clutch Drum

G3M0501
3) Install the driven plates, drive plates, and pressure
plate, and secure with a snap ring with ST1, ST2 and a
press.
ST1 398673600 COMPRESSOR
ST2 498627000 SEAT
G3M0502
4) Apply compressed air to see if the assembled parts
move smoothly.
G3M0503
5) Check the clearance.
Standard value:
0.2—0.6 mm (0.008—0.024 in)
Allowable limit:
1.6 mm (0.063 in)
If the clearance is not within the specified range, select a
proper pressure plate.
NOTE:
Before measuring clearance, place the same thickness of
shim on both sides to prevent pressure plate from tilting.
Available pressure platesPart No. Thickness mm (in)
31593AA151
31593AA161
31593AA171
31593AA1813.3 (0.130)
3.7 (0.146)
4.1 (0.161)
4.5 (0.177)
G3M0505
6) Press-fit the ball bearing with ST.
ST 899580100 INSTALLER
111
3-2SERVICE PROCEDURE
15. Transfer Clutch

4. CHECK FOR THE AWD FUNCTION
If“tight-corner braking”occurs when the steering wheel is
fully turned at low speed:
1) Determine the applicable trouble code and check the
corresponding duty solenoid C (transfer) for improper
operation.
2) If the solenoid is operating properly, check transfer
clutch pressure.
3) If oil pressure is normal but“tight-corner braking”
occurs:
Check the transfer control valve for sticking, and the trans-
fer clutch facing for wear.

44
3-2SERVICE PROCEDURE
3. Performance Test

G3M0405
(2) Apply compressed air intermittently to check for
operation.
G3M0406
(3) Check the clearance. (Selection of retaining plate)
Standard value:
1.1—1.7 mm (0.043—0.067 in)
Allowable limit:
2.7 mm (0.106 in)
NOTE:
Before measuring clearance, place the same thickness of
shim on both sides to prevent retaining plate from tilting.
Available retaining platesPart No. Thickness mm (in)
31667AA180
31667AA190
31667AA200
31667AA210
31667AA220
31667AA230
31667AA240
31667AA2506.5 (0.256)
6.8 (0.268)
7.1 (0.280)
7.4 (0.291)
7.7 (0.303)
8.0 (0.315)
8.2 (0.323)
8.4 (0.331)
B3M0404A
11) Install the forward clutch drum.
(1) Install carefully while rotating the drum slowly pay-
ing special attention not to damage the seal ring.
(2) Installation is complete when the drum recedes 2.5
mm (0.098 in) from the inner race surface.
G3M0408
12) Assemble the overrunning clutch hub.
CAUTION:
Install thrust needle bearing in the correct direction.

NOTE:
Join the thrust needle bearing and thrust washer with
vaseline, and then install them together.
Make sure that the splines are engaged correctly.
68
3-2SERVICE PROCEDURE
4. Overall Transmission

C: ASSEMBLY
G3M0909

1Reverse clutch drum


2Lip seal


3Reverse clutch piston


4Lathe cut seal ring

5Spring


6Spring retainer


7Snap ring

8Dish plate


9Driven plate


10Drive plate

11Retaining plate


12Snap ring


13High clutch drum
1) Using the ST1, ST2 and ST3 as those used in
disassembling, assemble piston

3the springs
5, spring
retainer

6and snap ring
7.
ST1 398673600 COMPRESSOR
ST2 398177700 INSTALLER
ST3 399893600 PLIERS
2) Assemble the dish plate

8, driven plates
9, drive
plates

10and retaining plate
11in that order and attach the
snap ring

12.
NOTE:
Pay attention to the orientation of the dish plate.
3) Checking operation:
Apply compressed air intermittently to the oil hole, and
check the reverse clutch for smooth operation.
4) Measuring clearance (Retaining plate selection):
Standard value:
0.5—0.8 mm (0.020—0.031 in)
Allowable limit:
1.2 mm (0.047 in)
NOTE:
Before measuring clearance, place the same thickness of
shim on both sides to prevent retaining plate from tilting.
Available retaining platesPart No. Thickness mm (in)
31567AA350
31567AA360
31567AA370
31567AA380
31567AA390
31567AA4004.6 (0.181)
4.8 (0.189)
5.0 (0.197)
5.2 (0.205)
5.4 (0.213)
5.6 (0.220)
97
3-2SERVICE PROCEDURE
9. Reverse Clutch

Available retaining platesPart No. Thickness mm (in)
31567AA190
31567AA200
31567AA210
31567AA220
31567AA230
31567AA240
31567AA250
31567AA2603.6 (0.142)
3.8 (0.150)
4.0 (0.157)
4.2 (0.165)
4.4 (0.173)
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
G3M0471
11. Forward Clutch Drum
A: DISASSEMBLY
1) Remove two snap rings from the forward clutch drum.
2) Remove the retaining plate, drive plates, driven plates
and dish plate. (Forward clutch)
G3M0472
3) Remove the snap ring from the forward clutch drum.
4) Remove the retaining plate, drive plates, driven plates
and dish plate. (Overrunning clutch)
G3M0473
5) Compress the spring retainer, and remove the snap ring
from the forward clutch, by using ST1 and ST2.
ST1 498627100 SEAT
ST2 398673600 COMPRESSOR
G3M0474
6) Install the one-way clutch inner race to the forward
clutch drum, and apply compressed air to remove the over-
running piston and forward piston.
100
3-2SERVICE PROCEDURE
10. High Clutch - 11. Forward Clutch Drum

Available retaining platesPart No. Thickness mm (in)
31567AA190
31567AA200
31567AA210
31567AA220
31567AA230
31567AA240
31567AA250
31567AA2603.6 (0.142)
3.8 (0.150)
4.0 (0.157)
4.2 (0.165)
4.4 (0.173)
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
G3M0471
11. Forward Clutch Drum
A: DISASSEMBLY
1) Remove two snap rings from the forward clutch drum.
2) Remove the retaining plate, drive plates, driven plates
and dish plate. (Forward clutch)
G3M0472
3) Remove the snap ring from the forward clutch drum.
4) Remove the retaining plate, drive plates, driven plates
and dish plate. (Overrunning clutch)
G3M0473
5) Compress the spring retainer, and remove the snap ring
from the forward clutch, by using ST1 and ST2.
ST1 498627100 SEAT
ST2 398673600 COMPRESSOR
G3M0474
6) Install the one-way clutch inner race to the forward
clutch drum, and apply compressed air to remove the over-
running piston and forward piston.
100
3-2SERVICE PROCEDURE
10. High Clutch - 11. Forward Clutch Drum

G3M0501
3) Install the driven plates, drive plates, and pressure
plate, and secure with a snap ring with ST1, ST2 and a
press.
ST1 398673600 COMPRESSOR
ST2 498627000 SEAT
G3M0502
4) Apply compressed air to see if the assembled parts
move smoothly.
G3M0503
5) Check the clearance.
Standard value:
0.2—0.6 mm (0.008—0.024 in)
Allowable limit:
1.6 mm (0.063 in)
If the clearance is not within the specified range, select a
proper pressure plate.
NOTE:
Before measuring clearance, place the same thickness of
shim on both sides to prevent pressure plate from tilting.
Available pressure platesPart No. Thickness mm (in)
31593AA151
31593AA161
31593AA171
31593AA1813.3 (0.130)
3.7 (0.146)
4.1 (0.161)
4.5 (0.177)
G3M0505
6) Press-fit the ball bearing with ST.
ST 899580100 INSTALLER
111
3-2SERVICE PROCEDURE
15. Transfer Clutch