1999 SUBARU LEGACY low oil pressure

10. Transfer Clutch Pressure
Test
A: MEASUREMENT
1. TEST METHODS
Check transfer clutch pressure in accordance with
the following chart in the same manner as with line
pressure.
ST 499897700 OIL PRESSURE ADAPTER
SET
ST 498575400 OIL PRESSURE GAUGE
ASSY
AWD mode: ªDº range
FWD mode: ªPº range, engine speed 2,000 rpm
CAUTION:
Before setting in FWD mode, install spare fuse
on FWD mode switch.
B3M1047
2. EVALUATION
NOTE:
If oil pressure is not produced or if it does not
change in the AWD mode, the duty solenoid C or
transfer valve assembly may be malfunctioning. If
oil pressure is produced in the FWD mode, the
problem is similar to that in the AWD mode.
Standard transfer clutch pressure kPa (kg/cm2, psi)
Duty ratio
(%)AWD mode FWD mode
5951 Ð 1,089
(9.7 Ð 11.1, 138 Ð 158)Ð
60226 Ð 294
(2.3 Ð 3.0, 33 Ð 43)Ð
95 Ð 0 (0, 0)
45
[W10A2]3-2SERVICE PROCEDURE
10. Transfer Clutch Pressure Test

6) Remove the oil pan.
NOTE:
Use a scraper to remove oil pan.
B3M1065A
7) Disconnect the harness connectors for the
solenoids, duty solenoids, ATF temperature sensor
and the ground cord.
B2M2263C
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 2 (Yellow)
(E) Shift solenoid 1 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid (Red)
(H) ATF temperature sensor
8) Remove the control valve body.
CAUTION:
When removing control valve body, be careful
not to interfere with transfer duty solenoid C
wiring.
B3M1037A
9) Remove vehicle speed sensor 2 (front) and
torque converter turbine speed sensor.
B3M1066A
10) Remove transmission harness.
B3M1067A
11) Remove the oil pump housing.
CAUTION:
Be careful not to lose the total end play adjust-
ing thrust washer.
B3M1068A
12) Remove 2-4 brake seal.
B3M1069A
50
3-2[W11B3]SERVICE PROCEDURE
11. Overall Transmission

19) Install planetary gear and low clutch assembly
to transmission case.
Install carefully while rotating the low clutch and
planetary gear assembly slowly paying special
attention not to damage the seal ring.
B3M1076A
20) Installation of the 2-4 brake:
(1) Install pressure plate, drive plate, driven
plate, retaining plate and snap ring.
B3M1075
(2) Install 2-4 brake oil seal to transmission
case.
NOTE:
Be sure to use a new one.
B3M1102A
(3) After all 2-4 brake component parts have
been installed, blow in air intermittently and con-
firm the operation of the brake.
B3M1103
(4) Measure the clearance between the retain-
ing plate and the snap ring.
NOTE:
Select a retaining plate with a suitable value from
the following table, so that the clearance becomes
the standard value.
Standard value:
0.8 Ð 1.2 mm (0.031 Ð 0.047 in)
Allowable limit:
1.5 mm (0.059 in)
B3M0980
Available retaining plates
Part No. Thickness mm (in)
31567AA610
31567AA620
31567AA630
31567AA640
31567AA650
31567AA6605.6 (0.220)
5.8 (0.228)
6.0 (0.236)
6.2 (0.244)
6.4 (0.252)
6.6 (0.260)
64
3-2[W11C2]SERVICE PROCEDURE
11. Overall Transmission

2) Install the torque converter clutch case assem-
bly to the transmission case assembly, and secure
with six bolts and four nuts.
CAUTION:
When installing, be careful not to damage the
torque converter clutch case bushing and oil
seal.
Tightening torque:
41
±3 N´m (4.2±0.3 kg-m, 30.4±2.2 ft-lb)
B3M1055A
4. CONTROL VALVE AND OIL PAN
1) Install and route the transmission harness.
CAUTION:
Be careful not to damage the harness.
B3M1067A
2) Install the control valve assembly.
(1) Set the select lever in range ªNº.(2) Install the control valve by engaging the
manual valve and manual lever, then tighten the
17 bolts.
CAUTION:
Tighten the control valve mounting bolts
evenly.
Tightening torque:
8
±1 N´m (0.8±0.1 kg-m, 5.8±0.7 ft-lb)
B3M1037A
(A) Short bolts
(B) Long bolts
3) Connect all connectors.
B2M2263C
(A) Lock-up duty solenoid (Blue)
(B) Low clutch timing solenoid (Gray)
(C) Line pressure duty solenoid (Red)
(D) Shift solenoid 2 (Yellow)
(E) Shift solenoid 1 (Green)
(F) 2-4 brake timing solenoid (Black)
(G) 2-4 brake duty solenoid (Red)
(H) ATF temperature sensor
4) Install the oil pan.
67
[W11C4]3-2SERVICE PROCEDURE
11. Overall Transmission

B: DISASSEMBLY
1) Remove oil strainer from lower control valve
body.
B3M1038A
2) Remove the duty solenoid S, solenoids and
sensor from the lower valve body.
B3M1039A
(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
3) Remove the upper-lower valve body tightening
bolts.
B3M1130
4) Separate the control valve body.CAUTION:
IDo not lose the ten (10) steel balls contained
in the upper valve body and middle valve body.
IDo not lose strainers contained in the lower
valve body.
NOTE:
During ordinary servicing, clean the control valve
bodies in this condition, without further disassem-
bly. In the event of a seized clutch or other
problem, disassemble the control valve bodies
further, and clean the component parts.
5) Remove upper separator plate from middle
valve body.
B3M1132A
6) Remove valve springs from upper valve body.
7) Using air compressor, remove accumulator pis-
ton from upper valve body.
B3M1133
C: INSPECTION
Make sure that each component is free of harmful
gouges, cuts, or dust.
78
3-2[W14B0]SERVICE PROCEDURE
14. Control Valve Body

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
80
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
80
3-2[W15A0]SERVICE PROCEDURE
15. Oil Pump Assembly

1. Steering System
A: SPECIFICATIONS
Except OUTBACK model OUTBACK model
Whole systemMinimum turning radius m (ft) 5.3 (17.4) 5.6 (18.4)
Steering angle (Inside-Outside) 37.6É Ð 32.6É 34.4É Ð 30.2É
Steering wheel diameter mm (in) 385 (15.16)
Overall gear ratio (Turns, lock to lock) 16.5 (3.2) 19 (3.4)
GearboxType Rack and pinion, Integral
Backlash 0 (Automatically adjustable)
Valve (Power steering system) Rotary valve
Pump
(Power steering sys-
tem)Type Vane pump
Oil tank Installed on pump
Output cm
3(cu in)/rev. 7.2 (0.439)
Relief pressure kPa (kg/cm2, psi) 7,355 (75, 1,067)
Hydraulic fluid control Dropping in response to increased engine revolutions
Hydraulic fluid(US qt, Imp qt)1,000 rpm: 7 (7.4, 6.2)
3,000 rpm: 5 (5.3, 4.4)
Range of revolution rpm 500 Ð 7,500
Revolving direction Clockwise
Working fluid
(Power steering sys-
tem)Name ATF DEXRON II, IIE or III
CapacityOil tank(US qt, Imp qt) 0.35 (0.4, 0.3)
Total 0.7 (0.7, 0.6)
B: SERVICE DATA
Except OUTBACK model OUTBACK model
Steering wheel Free play mm (in) 17 (0.67)
Turning angleInner tire & wheel 37.6É 34.4É
Outer tire & wheel 32.6É 30.2É
Steering shaftClearance between steering wheel and
column cover mm (in)3.0 (0.118)
Steering gearbox
(Power steering sys-
tem)Sliding resistance N (kg, lb) 240.3 (24.5, 54.0) or less
Rack shaft play in
radial direc-
tion mm (in)0.15 (0.0059) or less
Right-turn steering Horizontal movement: 0.3 (0.012) or less
Left-turn steering Vertical movement: 0.15 (0.0059) or less
Input shaft
play mm (in)In radial direction 0.18 (0.0071) or less
In axial direction 0.1 (0.004) or less
Turning resistance N (kg, lb)Within 30 mm (1.18 in) from rack center in straight ahead
position: Less than 11.18 (1.14, 2.51)
Maximum allowable value: 12.7 (1.3, 2.9)
Oil pump
(Power steering sys-
tem)Pulley shaft mm
(in)Radial play 0.4 (0.016) or less
Axial play 0.9 (0.035) or less
PulleyDitch deflec-
tion mm (in)1.0 (0.039) or less
Resistance to rota-
tion N (kg, lb)9.22 (0.94, 2.07) or less
Regular pressure kPa (kg/cm
2, psi) 981 (10, 142) or less
Relief pressure kPa (kg/cm2, psi) 7,355 (75, 1,067)
Steering wheel effort
(Power steering sys-
tem)At standstill with engine idling on a con-
crete road N (kg, lb)31.4 (3.2, 7.1) or less
At standstill with engine stalled on a
concrete road N (kg, lb)147 (15, 33) or less
2
4-3[S1A0]SPECIFICATIONS AND SERVICE DATA
1. Steering System