1997 SUBARU LEGACY engine

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

B2M1214A
3. Throttle Body
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.
B2M1218
4) Loosen clamp which connects air intake chamber to
throttle body.
5) Disconnect air hoses, and remove air intake chamber.
G2M0280
6) Disconnect accelerator cable
1.
7) Disconnect cruise control cable

2. (With cruise control
model)
B2M1247
8) Disconnect connector from throttle position sensor.
B2M1248
9) Disconnect engine coolant hoses from throttle body.
9
2-7SERVICE PROCEDURE
3. Throttle Body

B2M1241
16) Disconnect engine coolant hose from throttle body.
H2M1259A
17) Disconnect engine coolant hose
1from idle air con-
trol solenoid valve.
18) Disconnect air by-pass hose

2from idle air control
solenoid valve.
B2M0342
19) Disconnect brake booster hose.
B2M1242
20) Remove EGR pipe.
G2M0370
21) Disconnect canister hoses from pipes. (2500 cc, 2200
cc FWD and Taiwan spec. vehicles)
13
2-7SERVICE PROCEDURE
4. Intake Manifold

B2M0019
22) Disconnect engine harness connectors from bulkhead
harness connectors, and remove engine harness connec-
tors from bracket.
B2M0345A
23) Disconnect connectors from engine coolant tempera-
ture sensor

1and thermometer
2.
B2M1243A
24) Disconnect knock sensor connector.
B2M1251A
25) Disconnect connector from camshaft position sensor.
B2M1252A
26) Disconnect connector from crankshaft position sensor.
14
2-7SERVICE PROCEDURE
4. Intake Manifold

B2M1253A
27) Disconnect connector from oil pressure switch.
G2M0296
28) Disconnect fuel hoses from fuel pipes.
WARNING:
Catch fuel from hoses in a container.
B2M0159
29) Remove bolts which hold intake manifold onto cylinder
heads.
B2M0160
30) Remove intake manifold.
B2M0757A
B: DISASSEMBLY
1) Disconnect engine ground terminal from intake mani-
fold.
15
2-7SERVICE PROCEDURE
4. Intake Manifold

B2M0347A
2) Disconnect connectors from throttle position sensor,
ignition coil, fuel injectors, idle air control solenoid valve,
purge control solenoid valve and EGR solenoid valve.
3) Remove engine harness from intake manifold.


1EGR solenoid valve


2Throttle position sensor


3Idle air control solenoid valve


4Purge control solenoid valve


5Harness band
H2M1247
4) Remove idle air control solenoid valve from intake
manifold.
B2M0157
5) Remove throttle body from intake manifold.
B2M0161B
6) Remove fuel pipes, etc. from intake manifold.


1Pressure regulator


2Fuel pipe ASSY
7) Remove EGR solenoid valve and purge control sole-
noid valve.
B2M0161B
C: ASSEMBLY
1) Install EGR solenoid valve and purge control solenoid
valve.
2) Assemble fuel pipes, etc. to intake manifold.


1Pressure regulator


2Fuel pipe ASSY
16
2-7SERVICE PROCEDURE
4. Intake Manifold

B2M0157
3) Assemble throttle body to intake manifold.
CAUTION:
Replace gasket with a new one.
Tightening torque:
22±2 N⋅m (2.2±0.2 kg-m, 15.9±1.4 ft-lb)
H2M1247
4) Install idle air control solenoid valve to intake manifold.
CAUTION:
Replace gasket with a new one.
Tightening torque:
6.4±0.5 N⋅m (0.65±0.05 kg-m, 4.7±0.4 ft-lb)
B2M0347A
5) Install engine harness onto intake manifold.
6) Connect connectors to throttle position sensor, ignition
coil, fuel injectors, idle air control solenoid valve, purge
control solenoid valve and EGR solenoid valve.


1EGR solenoid valve


2Throttle position sensor


3Idle air control solenoid valve


4Purge control solenoid valve


5Harness band
B2M0757A
7) Connect engine ground terminal to intake manifold.
B2M0159
D: INSTALLATION
1) Install intake manifold onto cylinder heads.
CAUTION:
Always use new gaskets.
Tightening torque:
25±2 N⋅m (2.5±0.2 kg-m, 18.1±1.4 ft-lb)
17
2-7SERVICE PROCEDURE
4. Intake Manifold

B2M0345A
7) Connect connectors to engine coolant temperature sen-
sor

1and thermometer
2.
B2M0019
8) Install engine harness connectors to bracket, and con-
nect engine harness connectors to bulkhead connectors.
G2M0370
9) Connect canister hoses. (2500 cc, 2200 cc FWD and
Taiwan spec. vehicles)
B2M1242
10) Install EGR pipe.
Tightening torque:
34±2 N⋅m (3.5±0.2 kg-m, 25.3±1.4 ft-lb)
B2M0342
11) Connect brake booster hose.
19
2-7SERVICE PROCEDURE
4. Intake Manifold