1997 SUBARU LEGACY torque

G2M0213
C: INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Replace gasket with a new one.
When installing engine coolant pump, tighten bolts
in two stages in numerical sequence as shown in fig-
ure.
Tightening torque:
10
+4
0N⋅m (1.0+0.4
0kg-m, 7.2+2.9
0ft-lb)
G2M0214
3. Thermostat
A: REMOVAL AND INSTALLATION
1) Drain engine coolant.
Set container under the vehicle, and remove drain cock
from radiator.
2) Disconnect radiator outlet hose from thermostat cover.
3) Remove thermostat cover and gasket, and pull out the
thermostat.
G2M0227
4) Install the thermostat in the intake manifold, and install
the thermostat cover together with a gasket.
CAUTION:
When reinstalling the thermostat, use a new gasket.
The thermostat must be installed with the jiggle pin
upward.
In this time, set the jiggle pin of thermostat for front
side.
G2M0215
B: INSPECTION
Replace the thermostat if the valve does not close com-
pletely at an ambient temperature or if the following test
shows unsatisfactory results.
Immerse the thermostat and a thermometer in water. Raise
water temperature gradually, and measure the temperature
and valve lift when the valve begins to open and when the
valve is fully opened. During the test, agitate the water for
even temperature distribution. The measurement should
be to the specification.
Starts to open:
76.0—80.0°C (169—176°F)
Fully opens:
91°C (196°F)
12
2-5SERVICE PROCEDURE
2. Engine Coolant Pump - 3. Thermostat

G2M0213
C: INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Replace gasket with a new one.
When installing engine coolant pump, tighten bolts
in two stages in numerical sequence as shown in fig-
ure.
Tightening torque:
10
+4
0N⋅m (1.0+0.4
0kg-m, 7.2+2.9
0ft-lb)
G2M0214
3. Thermostat
A: REMOVAL AND INSTALLATION
1) Drain engine coolant.
Set container under the vehicle, and remove drain cock
from radiator.
2) Disconnect radiator outlet hose from thermostat cover.
3) Remove thermostat cover and gasket, and pull out the
thermostat.
G2M0227
4) Install the thermostat in the intake manifold, and install
the thermostat cover together with a gasket.
CAUTION:
When reinstalling the thermostat, use a new gasket.
The thermostat must be installed with the jiggle pin
upward.
In this time, set the jiggle pin of thermostat for front
side.
G2M0215
B: INSPECTION
Replace the thermostat if the valve does not close com-
pletely at an ambient temperature or if the following test
shows unsatisfactory results.
Immerse the thermostat and a thermometer in water. Raise
water temperature gradually, and measure the temperature
and valve lift when the valve begins to open and when the
valve is fully opened. During the test, agitate the water for
even temperature distribution. The measurement should
be to the specification.
Starts to open:
76.0—80.0°C (169—176°F)
Fully opens:
91°C (196°F)
12
2-5SERVICE PROCEDURE
2. Engine Coolant Pump - 3. Thermostat

B2M0138
5) Disconnect heater inlet hose.
B2M0139
6) Disconnect radiator inlet hose from engine coolant pipe.
B2M0141
7) Remove bolts which install engine coolant pipe on cyl-
inder block.
B2M0141
B: INSTALLATION
1) Install engine coolant pipe on cylinder block.
Tightening torque:
6.4±0.5 N⋅m (0.65±0.05 kg-m, 4.7±0.4 ft-lb)
CAUTION:
Use a new O-ring.
B2M0139
2) Connect radiator inlet hose.
18
2-5SERVICE PROCEDURE
7. Engine Coolant Pipe

1Intake manifold gasket LH


2Intake manifold gasket RH


3Fuel injector pipe insulator


4Fuel injector pipe


5O-ring A


6O-ring B


7Fuel injector


8Insulator


9Fuel injector cap


10Plate


11Sealing


12Gasket


13Engine coolant hose B


14Air by-pass hose


15Idle air control solenoid valve


16Engine coolant hose A


17Nipple (AT model)


18Plug


19PCV valve


20Purge control solenoid valve


21Nipple


22BPT (Except 2200 cc MT model)


23BPT holder bracket (Except 2200 cc MT model)


24Back pressure hose (Except 2200 cc MT model)


25EGR vacuum hose A (Except 2200 cc MT model)

26EGR vacuum hose B (Except 2200 cc MT model)


27EGR valve (Except 2200 cc MT model)


28Gasket (Except 2200 cc MT model)


29EGR solenoid valve (Except 2200 cc MT model)


30EGR pipe (Except 2200 cc MT model)


31Pressure sensor


32Pressure sources switching solenoid valve


33Vacuum hose A


34Vacuum hose B


35Vacuum hose C


36Bracket (Except Canada spec. vehicles)


37Bracket (For Canada spec. vehicles)


38Intake manifold
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 3.4±0.5 (0.35±0.05, 2.5±0.4)
T2: 4.9±0.5 (0.5±0.05, 3.6±0.4)
T3: 6.4±0.5 (0.65±0.05, 4.7±0.4)
T4: 16±1.5 (1.6±0.15, 11.6±1.1)
T5: 19±1.5 (1.9±0.15, 13.7±1.1)
T6: 19±2 (1.9±0.2, 13.7±1.4)
T7: 23±3 (2.3±0.3, 16.6±2.2)
T8: 25±2 (2.5±0.2, 18.1±1.4)
T9: 34±2 (3.5±0.2, 25.3±1.4)
3
2-7COMPONENT PARTS
1. Intake Manifold

2. 2500 cc MODEL
B2M1198A

1Intake manifold gasket LH


2Intake manifold gasket RH


3Fuel injector pipe insulator


4Fuel injector pipe


5O-ring A


6O-ring B


7Fuel injector


8Insulator


9Fuel injector cap


10Plate


11Sealing


12Gasket


13Engine coolant hose B


14Air by-pass hose


15Idle air control solenoid valve


16Engine coolant hose A


17Nipple (AT model)


18Plug


19PCV valve

20Purge control solenoid valve


21Nipple


22BPT


23BPT holder bracket


24Back pressure hose


25EGR vacuum hose A


26EGR vacuum pipe


27EGR vacuum hose C


28EGR valve


29Gasket


30EGR vacuum hose B


31EGR solenoid valve


32EGR pipe


33Pressure sensor


34Pressure sources switching solenoid
valve


35Vacuum hose A


36Vacuum hose B


37Vacuum hose C

38Bracket
(Except Canada spec. vehicles)


39Bracket
(For Canada spec. vehicles)


40Collar


41Intake manifold
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 3.4±0.5 (0.35±0.05, 2.5±0.4)
T2: 4.9±0.5 (0.5±0.05, 3.6±0.4)
T3: 6.4±0.5 (0.65±0.05, 4.7±0.4)
T4: 16±1.5 (1.6±0.15, 11.6±1.1)
T5: 19±1.5 (1.9±0.15, 13.7±1.1)
T6: 19±2 (1.9±0.2, 13.7±1.4)
T7: 23±3 (2.3±0.3, 16.6±2.2)
T8: 25±2 (2.5±0.2, 18.1±1.4)
T9: 34±2 (3.5±0.2, 25.3±1.4)
4
2-7COMPONENT PARTS
1. Intake Manifold

2. Air Intake System
B2M1166A

1Gasket


2Throttle position sensor


3Throttle body


4Clamp


5Air intake duct


6By-pass hose


7Air intake chamber

8Stay A


9Stay B (AT model)


10Stay C (MT model)


11Stay D (MT model)


12Spacer


13Bush
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 2.2±0.2 (0.22±0.02, 1.6±0.1)
T2: 4.9±0.5 (0.5±0.05, 3.6±0.4)
T3: 22±2 (2.2±0.2, 15.9±1.4)
5
2-7COMPONENT PARTS
2. Air Intake System

3. Air Cleaner
B2M1245A

1Mass air flow sensor bracket


2Mass air flow sensor ASSY


3Air cleaner upper cover


4Air cleaner element


5Spacer


6Bush

7Clip


8Air cleaner case


9Cushion rubber


10Air intake duct


11Resonator chamber ASSY


12Clip
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 7.4±2.0 (0.75±0.2, 5.4±1.4)
T2: 33±10 (3.4±1.0, 25±7)
6
2-7COMPONENT PARTS
3. Air Cleaner

B2M1214A
2. Mass Air Flow Sensor
A: REMOVAL AND INSTALLATION
1) Loosen clamps which connect air intake duct to air
intake chamber and mass air flow sensor.
2) Disconnect blow-by hose from air intake duct.
3) Remove air intake duct.
B2M1246A
4) Disconnect connector from mass air flow sensor.
G2M0390
5) Remove two clips, then remove air cleaner upper cover.
G2M0393
6) Remove mass air flow sensor from air cleaner upper
cover.
7) Installation is in the reverse order of removal.
Tightening torque:
7.4±2.0 N⋅m (0.75±0.2 kg-m, 5.4±1.4 ft-lb)
CAUTION:
Before installing air cleaner upper cover, align holes
with protruding portions of air cleaner lower case, then
secure upper cover to lower case.
8
2-7SERVICE PROCEDURE
2. Mass Air Flow Sensor