SUBARU LEGACY 1996 Service Repair Manual

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. <Ref. to 2-8 [W1A0].>
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

G2M0345
3. Fuel Tank
A: REMOVAL
1) Release fuel pressure. <Ref. to 2-8 [W1A0].>
2) Drain fuel from fuel tank. <Ref. to 2-8 [W1B0].>
G2M0382
3) Remove rear exhaust pipe.
(1) Lift-up the vehicle.
(2) Separate rear exhaust pipe from center exhaust
pipe.
(3) Separate rear exhaust pipe from muffler.
(4) Remove bracket from rubber cushion, and remove
exhaust pipe.
NOTE:
To facilitate the removal of parts, apply a coat of SUBARU
CRC5-56 (Part No. 004301003)
<Ref. to 2-9 [W2A0].>
G2M0384
4) Remove muffler assembly.
NOTE:
To facilitate the removal of parts, apply a coat of SUBARU
CRC5-56 (Part No. 004301003)
<Ref. to 2-9 [W3A0].>
G3M0059
5) Remove rear differential assembly. (AWD model)
(1) Remove rear axle shafts from rear differential
assembly.
(2) Remove rear differential front cover.
(3) Remove propeller shaft.
(4) Remove lower differential bracket.
(5) Set transmission jack under rear differential.
(6) Remove bolts which install rear differential onto
rear crossmember.
<Ref. to 3-4 [W2B0].>
13
2-8SERVICE PROCEDURE
3. Fuel Tank

G4M0545
6) Remove rear crossmember. (AWD model)
<Ref. to 4-1 [W11A0].>
G2M0353
7) Loosen clamp, and disconnect fuel filler hose from pipe.
8) Loosen clamp, and disconnect air vent hose from air
vent pipe.


1Fuel filler hose


2Air vent hose
B2M0310A
9) Loosen clip and clamps, and disconnect fuel delivery
hose

1, return hose
2and evaporation hose
3.
G2M0356
10) While holding fuel tank, remove bolts from bands and
dismount fuel tank.
WARNING:
A helper is required to perform step 10).
B: INSTALLATION
Installation is in the reverse order of removal. Do the fol-
lowing:
1) When installing fuel tank, have a helper hold fuel tank
while installing bands.
2) Before tightening band mounting bolts, connect fuel
system hoses.
14
2-8SERVICE PROCEDURE
3. Fuel Tank

G2M0357
3) Install hose and hold down clips at positions indicated
in Figure.
Tightening torque:
1.0
+0.5
0N⋅m (0.1+0.05
0kg-m, 0.7+0.4
0ft-lb)
Type A: When fitting length is specified.
Type B: When fitting length is not specified.


1Fitting


2Clamp


3Hose

: 1.0 — 4.0 mm (0.039 — 0.157 in)
L: 20 — 25 mm (0.79 — 0.98 in)
G2M0358

1Hose


2Clip


3Pipe
Fuel return hose:
L = 20 — 25 mm (0.79 — 0.98 in)
Evaporation hose:
L = 15 — 20 mm (0.59 — 0.79 in)
G2M0356
4) Tighten band mounting bolts.
Tightening torque:
33±10 N⋅m (3.4±1.0 kg-m, 25±7 ft-lb)
G4M0545
5) Install rear crossmember. <Ref. to 4-1 [W11C0].>
15
2-8SERVICE PROCEDURE
3. Fuel Tank

G3M0059
6) Install rear differential assembly. <Ref. to 3-4 [W2F0].>
G2M0384
7) Install muffler assembly.
G2M0382
8) Install heat sealed cover.
9) Install rear exhaust pipe.
G2M0340
10) Lower the vehicle, and connect connector to fuel
pump.
11) Install access hole lid.
G2M0345
4. Fuel Filler Pipe
A: REMOVAL
1) Release fuel pressure. <Ref. to 2-8 [W1A0].>
2) Drain fuel from fuel tank. <Ref. to 2-8 [W1B0].>
16
2-8SERVICE PROCEDURE
3. Fuel Tank - 4. Fuel Filler Pipe

G2M0360
3) Remove right rear wheel.
4) Open fuel filler flap and remove filler cap.
5) Remove screws holding packing in place.
G2M0361
6) Lift-up the vehicle.
7) Remove fuel filler pipe protector.
G2M0353
8) Remove clip, and separate air vent hose from pipe.
9) Loosen clamp, and separate fuel filler hose from pipe.


1Fuel filler hose


2Air vent hose
10) Remove fuel filler pipe to under side of the vehicle.
G2M0364
B: INSTALLATION
1) Hold fuel filler flap open.
2) Set fuel saucer

1with rubber packing
3, and insert fuel
filler pipe into hole from the inner side of apron.
3) Align holes in fuel filler pipe neck and set cup

2, and
tighten screws.
NOTE:
If edges of rubber packing are folded toward the inside,
straighten it with a screwdriver.
G2M0353
4) Insert fuel filler hose approximately 25 to 30 mm (0.98
to 1.18 in) over the lower end of fuel filler pipe and tighten
clamp.


1Fuel filler hose


2Air vent hose
CAUTION:
Do not allow clips to touch air vent hose and rear sus-
pension crossmember.
17
2-8SERVICE PROCEDURE
4. Fuel Filler Pipe

G2M0358
5) Insert air vent hose approximately 25 to 30 mm (0.98 to
1.18 in) into the lower end of air vent pipe and hold clip.


1Hose


2Clip


3Pipe
L=25—30 mm (0.98—1.18 in)
G2M0361
6) Install fuel filler pipe protector.
7) Install right rear wheel.
5. Fuel Filter
A: REMOVAL
1) Release fuel pressure. <Ref. to 2-8 [W1A0].>
G2M0347
2) Disconnect fuel delivery hoses from fuel filter.
3) Remove filter from holder.
B: INSPECTION
1) Check the inside of fuel filter for dirt and water sedi-
ment.
2) If it is clogged, or if replacement interval has been
reached, replace it.
3) If water is found in it, shake and expel the water from
inlet port.
18
2-8SERVICE PROCEDURE
4. Fuel Filler Pipe - 5. Fuel Filter

C: INSTALLATION
CAUTION:
If fuel hoses are damaged at the connecting portion,
replace it with a new one.
If clamps are badly damaged, replace with new ones.
G2M0347
1) Installation is in the reverse order of removal.
2) Tighten hose clamp screws.
Tightening torque:
1.0
+0.5
0N⋅m (0.1+0.05
0kg-m, 0.7+0.4
0ft-lb)
B2M0048A
6. Fuel Pump
A: REMOVAL
1) Release fuel pressure. <Ref. to 2-8 [W1A0].>
2) Disconnect fuel delivery hose

1and return hose
2.
3) Disconnect jet pump hose

3. (AWD model)
G2M0343
4) Remove nuts which install fuel pump assembly onto
fuel tank.
G2M0344
5) Take off fuel pump from fuel tank.
19
2-8SERVICE PROCEDURE
5. Fuel Filter - 6. Fuel Pump

G2M0366
B: INSPECTION
Connect lead harness to connector terminal of fuel pump,
and apply battery power supply to check whether the pump
operate.
WARNING:
Wipe off the fuel completely.
Keep battery as far apart from fuel pump as pos-
sible.
Be sure to turn the battery supply ON and OFF on
the battery side.
Do not run fuel pump for a long time under non-load
condition.
G2M0346
C: INSTALLATION
Installation is in the reverse order of removal. Do the fol-
lowing:
(1) Always use new gaskets.
(2) Ensure sealing portion is free from fuel or foreign
particles before installation.
(3) Tighten nuts in numerical sequence shown in Fig-
ure to specified torque.
Tightening torque:
4.4±1.5 N⋅m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M0048A
7. Fuel Meter Unit
A: REMOVAL
NOTE:
Fuel meter unit is built in fuel pump assembly.
1) Release fuel pressure. <Ref. to 2-8 [W1A0].>
2) Disconnect fuel delivery hose

1and return hose
2.
3) Disconnect jet pump hose

3. (AWD model)
20
2-8SERVICE PROCEDURE
6. Fuel Pump - 7. Fuel Meter Unit

G2M0344
4) Remove nuts which install fuel pump assembly onto
fuel tank.
5) Take off fuel pump assembly.
G2M0346
B: INSTALLATION
Installation is in the reverse order of removal. Do the fol-
lowing:
(1) Always use new gaskets.
(2) Ensure sealing portion is free from fuel or foreign
particles before installation.
(3) Tighten nuts in numerical sequence shown in Fig-
ure to specified torque.
Tightening torque:
4.4±1.5 N⋅m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
21
2-8SERVICE PROCEDURE
7. Fuel Meter Unit