engine SUBARU LEGACY 1997 Service Repair Manual

B2M1680A
3) Remove band clip which fastens engine harness to
engine coolant hose.
B2M1681
4) Disconnect knock sensor connector.
B2M1682
5) Remove knock sensor from cylinder block.
G6M0095
2. 2500 cc MODEL
1) Disconnect battery ground cable from battery ground
terminal.
B2M1683
2) Remove air intake chamber.

35
2-7SERVICE PROCEDURE
19. Knock Sensor

B2M1179D
3) Remove operating cylinder. (MT vehicle only)
B2M1684
NOTE:
Place the operating cylinder where it will not interfere with
the work in process.
B2M1685A
4) Remove band clip which fastens engine harness to
engine coolant hose.
B2M1686
5) Disconnect knock sensor connector.
B2M1682
6) Remove knock sensor from cylinder block.
36
2-7SERVICE PROCEDURE
19. Knock Sensor

B2M1682A
B: INSTALLATION
1. 2200 cc MODEL
1) Install knock sensor to cylinder block.
Tightening torque:
23.5±2.9 N⋅m (2.4±0.3 kg-m, 17.3±2.1 ft-lb)
NOTE:
The extraction area of the knock sensor cord must be posi-
tioned at a 45°angle relative to the engine rear.
B2M1681
2) Connect knock sensor connector.
B2M1687A
NOTE:
The knock sensor cord must pass between the engine
harness and engine coolant hose.
B2M1680A
3) Fasten engine harness to engine coolant hose with
band clip.
NOTE:
Make sure that the throttle linkage does not interfere with
other parts in the operating area.
B2M1679
4) Install air intake chamber.
37
2-7SERVICE PROCEDURE
19. Knock Sensor

G6M0095
5) Connect battery ground cable to battery ground termi-
nal.
B2M1682A
2. 2500 cc MODEL
1) Install knock sensor to cylinder block.
Tightening torque:
23.5±2.9 N⋅m (2.4±0.3 kg-m, 17.3±2.1 ft-lb)
NOTE:
The extraction area of the knock sensor cord must be posi-
tioned at a 45°angle relative to the engine rear.
B2M1686
2) Connect knock sensor connector.
B2M1688A
NOTE:
The connector must be connected to the engine front end
of the engine coolant hose.
B2M1689A
38
2-7SERVICE PROCEDURE
19. Knock Sensor

B2M1685A
3) Fasten engine harness to engine coolant hose with
band clip.
NOTE:
Make sure that the throttle linkage does not interfere with
other parts in the operating area.
B2M1179E
4) Install operating cylinder. (MT vehicle only)
Tightening torque:
37±3 N⋅m (3.8±0.3 kg-m, 27.3±2.2 ft-lb)
NOTE:
Apply grease to contact point of release lever and operat-
ing cylinder rod.
B2M1683
5) Install air intake chamber.
G6M0095
6) Connect battery ground cable to battery ground termi-
nal.
39
2-7SERVICE PROCEDURE
19. Knock Sensor

1. Precautions
WARNING:
Place “No fire” signs near the working area.
Disconnect ground terminal from battery.
Be careful not to spill fuel on the floor.
G2M0340
A: RELEASING OF FUEL PRESSURE
1) Take off floor mat.
2) Remove access hole lid.
B2M0047
3) Disconnect connector from fuel pump.
4) Start the engine, and run it until it stalls.
5) After the engine stalls, crank it for five more seconds.
6) Turn ignition switch OFF.
G2M0340
B: DRAINING OF FUEL
1) Remove rear seat and seat back.
2) Remove access hole lid.
B2M0047
3) Disconnect connector from fuel pump.
4) Release fuel pressure.
10
2-8SERVICE PROCEDURE
1. Precautions

B2M0049
11) On AWD model, after removing fuel sub meter unit,
drain fuel from there.
WARNING:
Do not use a motor pump when draining fuel.
2. On-Car Services
A: MEASUREMENT OF FUEL PRESSURE
1) Release fuel pressure.
2) Connect connector to fuel pump.
G2M0347
3) Disconnect fuel delivery hoses from fuel filter, and con-
nect fuel pressure gauge.
G2M0348
4) Start the engine.
5) Measure fuel pressure while disconnecting pressure
regulator vacuum hose from collector chamber.
Fuel pressure:
235 — 265 kPa (2.4 — 2.7 kg/cm
2, 34 — 38 psi)
6) After connecting pressure regulator vacuum hose, mea-
sure fuel pressure.
Fuel pressure:
177 — 206 kPa (1.8 — 2.1 kg/cm
2, 26 — 30 psi)
WARNING:
Before removing fuel pressure gauge, release fuel
pressure.
NOTE:
If out of specification as measured at step 6), check or
replace pressure regulator and pressure regulator vacuum
hose.
12
2-8SERVICE PROCEDURE
1. Precautions - 2. On-Car Services

B2M0049
11) On AWD model, after removing fuel sub meter unit,
drain fuel from there.
WARNING:
Do not use a motor pump when draining fuel.
2. On-Car Services
A: MEASUREMENT OF FUEL PRESSURE
1) Release fuel pressure.
2) Connect connector to fuel pump.
G2M0347
3) Disconnect fuel delivery hoses from fuel filter, and con-
nect fuel pressure gauge.
G2M0348
4) Start the engine.
5) Measure fuel pressure while disconnecting pressure
regulator vacuum hose from collector chamber.
Fuel pressure:
235 — 265 kPa (2.4 — 2.7 kg/cm
2, 34 — 38 psi)
6) After connecting pressure regulator vacuum hose, mea-
sure fuel pressure.
Fuel pressure:
177 — 206 kPa (1.8 — 2.1 kg/cm
2, 26 — 30 psi)
WARNING:
Before removing fuel pressure gauge, release fuel
pressure.
NOTE:
If out of specification as measured at step 6), check or
replace pressure regulator and pressure regulator vacuum
hose.
12
2-8SERVICE PROCEDURE
1. Precautions - 2. On-Car Services

B2M0973A
G2M0296
4) In engine compartment, detach fuel delivery hose,
return hose and evaporation hose.
G2M0370
5) In engine compartment, detach canister hoses from
canister. (Except 2200 cc AWD model)
23
2-8SERVICE PROCEDURE
8. Fuel Delivery, Return and Evaporation Lines

B2M0633A
1. MECHANICAL APPLICATION TYPE
1) While pushing release lever

3to pivot and twisting it to
both sides, fit retainer spring

5onto the constricted portion
of pivot.
NOTE:
Confirm that retainer spring is securely fitted by observing
it through the main case hole.
2) Install release bearing

6and fasten it with two clips
2.
3) Install release lever seal

4.
G2M0235
4) After remounting engine and transmission on body,
make adjustment of the clutch release lever end play.
CAUTION:
Take care not to twist the cable during adjustment.
5) Install release lever return spring (Models without hill
holder only).
NOTE:
Hook up the return spring to right side hole of the release
lever.
B2M1257C
2. HYDRAULIC APPLICATION TYPE
1) While pushing release lever

1to pivot and twisting it to
both sides, fit retainer spring

2onto the constricted portion
of pivot.
NOTE:
Apply grease (SUNLIGHT 2: P/N 003602010) to contact
point of release lever and operating cylinder.
Confirm that retainer spring is securely fitted by observ-
ing it through the main case hole.
2) Install release bearing

3and fasten it with two clips
4.
3) Install release lever seal

5.
4) Install operating cylinder

6.
Tightening torque:
T: 37±3 N⋅m (3.8±0.3 kg-m, 27.5±2.2 ft-lb)
11
2-10SERVICE PROCEDURE
3. Release Bearing and Lever