1999 SUBARU LEGACY wheel nut torque

G3M0322
3. ENGINE BRAKE OPERATION
Engine brake operation:
D range
®4th gear
3 range
®3rd gear
2 range
®2nd gear
1 range
®1st gear
4. AWD FUNCTION
If ªtight-corner brakingº 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 ªtight-corner brak-
ingº occurs:
Check the transfer control valve for sticking, and
the transfer clutch facing for wear. [W20B0].> and
7. Stall Test
A: MEASUREMENT
1. GENERAL INFORMATION
The stall test is of extreme importance in diagnos-
ing the condition of the automatic transmission and
the engine. It should be conducted to measure the
engine stall speeds in R and 2 ranges.
Purposes of the stall test:
1) To check the operation of the automatic trans-
mission clutch.
2) To check the operation of the torque converter
clutch.
3) To check engine performance.
2. TEST METHODS
1) Preparations before test:
(1) Check that throttle valve opens fully.
(2) Check that engine oil level is correct.
(3) Check that coolant level is correct.
(4) Check that ATF level is correct.
(5) Check that differential gear oil level is cor-
rect.
(6) Increase ATF temperature to 50 to 80ÉC
(122 to 176ÉF) by idling the engine for approxi-
mately 30 minutes (with select lever set to ªNº
or ªPº).
2) Install an engine tachometer at a location vis-
ible from the driver's compartment and mark the
41
[W7A2]3-2SERVICE PROCEDURE
7. Stall Test

G3M0322
3. ENGINE BRAKE OPERATION
Engine brake operation:
D range
®4th gear
3 range
®3rd gear
2 range
®2nd gear
1 range
®1st gear
4. AWD FUNCTION
If ªtight-corner brakingº 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 ªtight-corner brak-
ingº occurs:
Check the transfer control valve for sticking, and
the transfer clutch facing for wear. [W20B0].> and
7. Stall Test
A: MEASUREMENT
1. GENERAL INFORMATION
The stall test is of extreme importance in diagnos-
ing the condition of the automatic transmission and
the engine. It should be conducted to measure the
engine stall speeds in R and 2 ranges.
Purposes of the stall test:
1) To check the operation of the automatic trans-
mission clutch.
2) To check the operation of the torque converter
clutch.
3) To check engine performance.
2. TEST METHODS
1) Preparations before test:
(1) Check that throttle valve opens fully.
(2) Check that engine oil level is correct.
(3) Check that coolant level is correct.
(4) Check that ATF level is correct.
(5) Check that differential gear oil level is cor-
rect.
(6) Increase ATF temperature to 50 to 80ÉC
(122 to 176ÉF) by idling the engine for approxi-
mately 30 minutes (with select lever set to ªNº
or ªPº).
2) Install an engine tachometer at a location vis-
ible from the driver's compartment and mark the
41
[W7A2]3-2SERVICE PROCEDURE
7. Stall Test

stall speed range on the tachometer scale.
3) Place the wheel chocks at the front and rear of
all wheels and engage the parking brake.
4) Move the manual linkage to ensure it operates
properly, and shift the select lever to the 2 range.
5) While forcibly depressing the foot brake pedal,
gradually depress the accelerator pedal until the
engine operates at full throttle.
B3M0286B
6) When the engine speed is stabilized, read that
speed quickly and release the accelerator pedal.
7) Shift the select lever to Neutral, and cool down
the engine by idling it for more than one minute.
8) Record the stall speed.
9) If stall speed in 2 range is higher than
specifications, low clutch slipping and 2-4 brakeslipping may occur. To identify it, conduct the same
test as above in D range.
10) Perform the stall tests with the select lever in
the R range.
NOTE:
IDo not continue the stall test for MORE THAN
FIVE SECONDS at a time (from closed throttle,
fully open throttle to stall speed reading). Failure to
follow this instruction causes the engine oil and
ATF to deteriorate and the clutch and brake to be
adversely affected.
Be sure to cool down the engine for at least one
minute after each stall test with the select lever set
in the P or N range and with the idle speed lower
than 1,200 rpm.
IIf the stall speed is higher than the specified
range, attempt to finish the stall test in as short a
time as possible, in order to prevent the automatic
transmission from sustaining damage.Stall speed (at sea level):
2200 cc 2,200 Ð 2,600 rpm
2500 cc 2,200 Ð 2,600 rpm
OUTBACK 2,300 Ð 2,700 rpm
3. EVALUATION
Stall speed (at sea level) Position Cause
Less than specifications2
RIThrottle valve not fully open
IErroneous engine operation
ITorque converter clutch's one-way clutch slipping
Greater than specificationsDILow clutch slipping
IOne-way clutch malfunctioning
RILine pressure too low
IReverse clutch slipping
ILow & reverse brake slipping
2ILine pressure too low
ILow clutch slipping
I2-4 brake slipping
42
3-2[W7A3]SERVICE PROCEDURE
7. Stall Test

2) Align matching marks and connect flange yoke
and rear differential.
Tightening torque:
31
±8 N´m (3.2±0.8 kg-m, 23.1±5.8 ft-lb)
G3M0782
3) Install differential mount front cover.
Tightening torque:
88
±10 N´m (9.0±1.0 kg-m, 65±7 ft-lb)
G3M0022
4) Install front exhaust cover.
5) Install rear exhaust pipe and muffler.
G3M0021
2. Rear Differential
A: ON-CAR SERVICE
1. FRONT OIL SEAL
1) Disconnect ground cable from battery.
2) Move selector lever or gear shift lever to ªNº.
3) Release the parking brake.
4) Remove oil drain plug, and drain gear oil.
B3M0316A
5) Jack-up rear wheels and support the vehicle
body with sturdy racks.
6) Remove propeller shaft from body. [W1B0].>
CAUTION:
Wrap metal parts with a cloth or rubber mate-
rial to prevent damage from adjacent metal
parts.
S3M0028
7) Remove self-locking nut while holding compan-
ion flange with ST.
ST 498427200 FLANGE WRENCH
G3M0034
14
3-4[W2A1]SERVICE PROCEDURE
2. Rear Differential

2) Align matching marks and connect flange yoke
and rear differential.
Tightening torque:
31
±8 N´m (3.2±0.8 kg-m, 23.1±5.8 ft-lb)
G3M0782
3) Install differential mount front cover.
Tightening torque:
88
±10 N´m (9.0±1.0 kg-m, 65±7 ft-lb)
G3M0022
4) Install front exhaust cover.
5) Install rear exhaust pipe and muffler.
G3M0021
2. Rear Differential
A: ON-CAR SERVICE
1. FRONT OIL SEAL
1) Disconnect ground cable from battery.
2) Move selector lever or gear shift lever to ªNº.
3) Release the parking brake.
4) Remove oil drain plug, and drain gear oil.
B3M0316A
5) Jack-up rear wheels and support the vehicle
body with sturdy racks.
6) Remove propeller shaft from body. [W1B0].>
CAUTION:
Wrap metal parts with a cloth or rubber mate-
rial to prevent damage from adjacent metal
parts.
S3M0028
7) Remove self-locking nut while holding compan-
ion flange with ST.
ST 498427200 FLANGE WRENCH
G3M0034
14
3-4[W2A1]SERVICE PROCEDURE
2. Rear Differential

8) Extract companion flange with a puller.
G3M0035
9) Remove oil seal using ST.
ST 398527700 PULLER ASSY (T-type)
ST 499705401 PULLER ASSY (VA-type)
G3M0036
10) Fit a new oil seal using ST.
ST 498447120 OIL SEAL INSTALLER
G3M0037
11) Install companion flange.12) Tighten self-locking nut within the specified
torque range so that the turning resistance of com-
panion flange becomes the same as that before
replacing oil seal.
CAUTION:
Use a new self-locking nut.
ST 498427200 FLANGE WRENCH
Tightening torque:
T-type;
181.4
±14.7 N´m (18.50±1.50 kg-m,
133.8
±10.8 ft-lb)
VA-type;
188
±26 N´m (19.2±2.7 kg-m, 139±20 ft-lb)
G3M0034
13) Reassembling procedure hereafter is the
reverse of the disassembling.
2. SIDE OIL SEAL (T-TYPE)
1) Disconnect ground cable from battery.
2) Move selector lever or gear shift lever to ªNº.
3) Release the parking brake.
4) Loosen both wheel nuts.
5) Jack-up the vehicle and support it with rigid
racks.
6) Remove wheels.
7) Remove rear exhaust pipe.

8) Remove muffler.

9) Remove the ABS sensor cable clamp and park-
ing brake cable clamp from bracket.
B3M0610A
15
[W2A2]3-4SERVICE PROCEDURE
2. Rear Differential

NOTE:
When installing rear differential front member, do
not confuse the installation sequence of the upper
and lower stoppers.
3) Install DOJ of rear drive shaft into rear differen-
tial.
ST 28099PA090 SIDE OIL SEAL PROTEC-
TOR
G3M1026
4) Installing procedure hereafter is in the reverse
order of removal.
5) After installation, fill differential carrier with gear
oil to the upper plug level.
CAUTION:
IApply fluid packing to plug (T-type).
IUse a new aluminum gasket when installing
the plug (VA-type).
Fluid packing:
THREE BOND 1105 or equivalent
Oil capacity:
0.8
(0.8 US qt, 0.7 Imp qt)
Tightening torque:
T-type;
44
±4 N´m (4.5±0.4 kg-m, 32.5±2.9 ft-lb)
VA-type;
34
±4 N´m (3.5±0.4 kg-m, 25.3±2.9 ft-lb)
G3M1051
3. Rear Differential Front
Member
A: REMOVAL
1. T-TYPE
1) Disconnect ground cable from battery.
2) Move selector lever or gear shift lever to ªNº.
3) Release the parking brake.
4) Loosen wheel nuts.
5) Jack-up vehicle and support it with sturdy
racks.
6) Remove wheels.
7) Remove rear exhaust pipe.

8) Remove muffler.

9) Remove rear differential front member.
NOTE:
When removing rear differential front member,
work the removal procedure as rear differential.

2. VA-TYPE
1) Disconnect ground cable from battery.
2) Move selector lever or gear shift lever to ªNº.
3) Release the parking brake.
4) Loosen wheel nuts.
5) Jack-up vehicle and support it with sturdy
racks.
6) Remove wheels.
7) Remove rear exhaust pipe.

8) Remove muffler.

9) Remove rear differential front member.
NOTE:
When removing rear differential front member,
work the removal procedure as rear differential.

B: INSTALLATION
1. T-TYPE
To install, reverse the removal sequence.
48
3-4[W3A1]SERVICE PROCEDURE
3. Rear Differential Front Member

NOTE:
When installing rear differential front member, do
not confuse the installation sequence of the upper
and lower stoppers.
3) Install DOJ of rear drive shaft into rear differen-
tial.
ST 28099PA090 SIDE OIL SEAL PROTEC-
TOR
G3M1026
4) Installing procedure hereafter is in the reverse
order of removal.
5) After installation, fill differential carrier with gear
oil to the upper plug level.
CAUTION:
IApply fluid packing to plug (T-type).
IUse a new aluminum gasket when installing
the plug (VA-type).
Fluid packing:
THREE BOND 1105 or equivalent
Oil capacity:
0.8
(0.8 US qt, 0.7 Imp qt)
Tightening torque:
T-type;
44
±4 N´m (4.5±0.4 kg-m, 32.5±2.9 ft-lb)
VA-type;
34
±4 N´m (3.5±0.4 kg-m, 25.3±2.9 ft-lb)
G3M1051
3. Rear Differential Front
Member
A: REMOVAL
1. T-TYPE
1) Disconnect ground cable from battery.
2) Move selector lever or gear shift lever to ªNº.
3) Release the parking brake.
4) Loosen wheel nuts.
5) Jack-up vehicle and support it with sturdy
racks.
6) Remove wheels.
7) Remove rear exhaust pipe.

8) Remove muffler.

9) Remove rear differential front member.
NOTE:
When removing rear differential front member,
work the removal procedure as rear differential.

2. VA-TYPE
1) Disconnect ground cable from battery.
2) Move selector lever or gear shift lever to ªNº.
3) Release the parking brake.
4) Loosen wheel nuts.
5) Jack-up vehicle and support it with sturdy
racks.
6) Remove wheels.
7) Remove rear exhaust pipe.

8) Remove muffler.

9) Remove rear differential front member.
NOTE:
When removing rear differential front member,
work the removal procedure as rear differential.

B: INSTALLATION
1. T-TYPE
To install, reverse the removal sequence.
48
3-4[W3A1]SERVICE PROCEDURE
3. Rear Differential Front Member