1999 SUBARU LEGACY Service Repair Manual

7) Tighten bolts.
Tightening torque:
8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
B3M1130A
(A) Short bolts
(B) Middle bolts
(C) Long bolt
(D) Reamer bolts
8) Install the sensor, solenoids and duty solenoid
S.
Tightening torque:
T: 8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
B3M1039B
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 1 (Yellow)
(E) Shift solenoid 2 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid D (Red)
(H) ATF temperature sensor
9) Install oil strainer to lower valve body.
Tightening torque:
8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
15. Oil Pump Assembly
A: DISASSEMBLY
1) Remove the oil seal retainer.
Also remove the O-ring and oil seal (air breather).
B3M1094A
2) Remove O-rings from oil pump housing.
CAUTION:
Be careful not to damage O-ring.
3) Remove four seal rings.
CAUTION:
Be careful not to damage O-ring.
B3M1095A
4) Remove the oil pump cover.
NOTE:
Lightly tap the end of the stator shaft to remove the
cover.
B3M1139A
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3-2[W15A0]SERVICE PROCEDURE
15. Oil Pump Assembly

7) Tighten bolts.
Tightening torque:
8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
B3M1130A
(A) Short bolts
(B) Middle bolts
(C) Long bolt
(D) Reamer bolts
8) Install the sensor, solenoids and duty solenoid
S.
Tightening torque:
T: 8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
B3M1039B
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 1 (Yellow)
(E) Shift solenoid 2 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid D (Red)
(H) ATF temperature sensor
9) Install oil strainer to lower valve body.
Tightening torque:
8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
15. Oil Pump Assembly
A: DISASSEMBLY
1) Remove the oil seal retainer.
Also remove the O-ring and oil seal (air breather).
B3M1094A
2) Remove O-rings from oil pump housing.
CAUTION:
Be careful not to damage O-ring.
3) Remove four seal rings.
CAUTION:
Be careful not to damage O-ring.
B3M1095A
4) Remove the oil pump cover.
NOTE:
Lightly tap the end of the stator shaft to remove the
cover.
B3M1139A
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3-2[W15A0]SERVICE PROCEDURE
15. Oil Pump Assembly

5) Remove the inner and outer rotor.
B3M1140A
B: INSPECTION
1) Check seal ring and O-ring oil seal for breaks or
damage.
2) Check other parts for dents or abnormalities.
3) Selection of oil pump rotor assembly
(1) Tip clearance
Install inner rotor and outer rotor to oil pump.
With rotor gears facing each other, measure
crest-to-crest clearance.
Tip clearance:
0.02 Ð 0.15 mm (0.0008 Ð 0.0059 in)
B3M0965A
(2) Side clearance
Set a depth gauge to oil pump housing, then
measure oil pump housing-to-rotor clearances.
Side clearance:
0.02 Ð 0.04 mm (0.0008 Ð 0.0016 in)
B3M0966A
(3) If depth and/or side clearances are outside
specifications, replace rotor assembly.
Oil pump rotor assembly
Part No. Thickness mm (in)
15008AA060
15008AA070
15008AA08011.37 Ð 11.38 (0.4476 Ð 0.4480)
11.38 Ð 11.39 (0.4480 Ð 0.4484)
11.39 Ð 11.40 (0.4484 Ð 0.4488)
C: ASSEMBLY
1) Install oil pump rotor assembly to oil pump
housing.
B3M1140A
2) Install the oil pump cover.
Tightening torque:
25
±2 N´m (2.5±0.2 kg-m, 18.1±1.4 ft-lb)
NOTE:
IAlign both pivots with the pivot holes of the
cover, and install the cover being careful not to
apply undue force to the pivots.
IAfter assembling, turn the oil pump shaft to
check for smooth rotation of the rotor.
B3M1139A
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[W15C0]3-2SERVICE PROCEDURE
15. Oil Pump Assembly

IInstall the oil seal retainer and seal rings. After
adjusting the drive pinion backlash and tooth con-
tact.
B3M1095A
16. Drive Pinion Shaft
A: DISASSEMBLY
1) Straighten the staked portion of the lock nut,
and remove the lock nut while locking the rear
spline portion of the shaft with ST1 and ST2. Then
pull off the drive pinion collar.
ST1 498937100 HOLDER
ST2 499787100 WRENCH
ST3 499757800 ADAPTER
B3M0587A
2) Remove the O-ring.
3) Using a press, separate the rear roller bearing
and outer race from the shaft.
G3M0459
4) Using a press and ST, separate the front roller
bearing from the shaft.
ST 498517000 REPLACER
G3M0460
B: INSPECTION
Make sure that all component parts are free of
harmful cuts, gouges, and other faults.
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3-2[W16A0]SERVICE PROCEDURE
16. Drive Pinion Shaft

IInstall the oil seal retainer and seal rings. After
adjusting the drive pinion backlash and tooth con-
tact.
B3M1095A
16. Drive Pinion Shaft
A: DISASSEMBLY
1) Straighten the staked portion of the lock nut,
and remove the lock nut while locking the rear
spline portion of the shaft with ST1 and ST2. Then
pull off the drive pinion collar.
ST1 498937100 HOLDER
ST2 499787100 WRENCH
ST3 499757800 ADAPTER
B3M0587A
2) Remove the O-ring.
3) Using a press, separate the rear roller bearing
and outer race from the shaft.
G3M0459
4) Using a press and ST, separate the front roller
bearing from the shaft.
ST 498517000 REPLACER
G3M0460
B: INSPECTION
Make sure that all component parts are free of
harmful cuts, gouges, and other faults.
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3-2[W16A0]SERVICE PROCEDURE
16. Drive Pinion Shaft

C: ASSEMBLY
1) Measure dimension ªAº of the drive pinion
shaft.
ST 398643600 GAUGE
B3M1176A
2) Using a press, force-fit the roller bearing in
position.
CAUTION:
Do not change the relative positions of the
outer race and bearing cone.
G3M0462
3) After fitting the O-ring to the shaft, attach the
drive pinion collar to the shaft.
CAUTION:
Be careful not to damage the O-ring.4) Tighten the lock washer and lock nut with ST1,
ST2 and ST3.
ST1 498937110 HOLDER
ST2 499787100 WRENCH
ST3 499787500 ADAPTER
Actual tightening torque:
11 6
±5 N´m (11.8±0.5 kg-m, 85.3±3.6 ft-lb)
NOTE:
IPay attention to the orientation of lock washer.
ITightening torque using torque wrench is deter-
mined by the following equation.
T1=L/L + 72.2´T
T: Actual tightening torque
IInstall ST2 to torque wrench as straight as pos-
sible.
B3M1410A
5) Measure the starting torque of the bearing.
Make sure the starting torque is within the speci-
fied range. If out of the allowable range, replace
the roller bearing.
Starting torque:
0.3 Ð 2.0 N´m (0.03 Ð 0.2 kg-m, 0.2 Ð 1.4
ft-lb)
B3M0589
6) Stake the lock nut securely at two places.
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[W16C0]3-2SERVICE PROCEDURE
16. Drive Pinion Shaft

7) Measure dimension ªBº of the drive pinion
shaft.
ST 398643600 GAUGE
B3M0590D
8) Determine the thickness ªtº (mm) of the drive
pinion shim.
NOTE:
The number of shims must be three or less.
t = 6.5±0.0625 þ (B þ A)
Available drive pinion shims
Part No. Thickness mm (in)
31451AA050
31451AA060
31451AA070
31451AA080
31451AA090
31451AA1000.150 (0.0059)
0.175 (0.0069)
0.200 (0.0079)
0.225 (0.0089)
0.250 (0.0098)
0.275 (0.0108)
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3-2[W16C0]SERVICE PROCEDURE
16. Drive Pinion Shaft

17. High Clutch and Reverse Clutch
A: DISASSEMBLY
B3M1179A
(1) Reverse clutch drum
(2) Lip seal
(3) Lathe cut seal ring
(4) Reverse clutch piston
(5) Lathe cut seal ring
(6) Lathe cut seal ring
(7) High clutch piston
(8) Spring retainer(9) Cover
(10) Snap ring
(11) Driven plate (Thicker)
(12) Driven plate
(13) Drive plate
(14) Retaining plate
(15) Snap ring
(16) Dish plate(17) Driven plate
(18) Drive plate
(19) Retaining plate
(20) Snap ring
(21) Thrust needle bearing
(22) High clutch hub
85
[W17A0]3-2SERVICE PROCEDURE
17. High Clutch and Reverse Clutch