fuel filter SUBARU LEGACY 1995 Service Repair Manual
[x] Cancel search | Manufacturer: SUBARU, Model Year: 1995, Model line: LEGACY, Model: SUBARU LEGACY 1995Pages: 2248, PDF Size: 48.81 MB
Page 98 of 2248
TROUBLE
Engine will not start.
Rough idle and engine stall
Low output, hesitation and poor acceleration
Surging
Engine does not return to idle.
Dieseling (Run-on)
After burning in exhaust system
Knocking
Excessive engine oil consumption
Excessive fuel consumption Starter does not turn.
Initial combustion does not occur.
Initial combustion occurs.
Engine stalls after initial combustion.
LUBRICATION SYSTEM
22 3 3Incorrect oil pressure
2Loosened oil pump attaching bolts and defective
gasket
2Defective oil filter seal
2Defective crankshaft oil seal
32Defective rocker cover gasket
2Loosened oil drain plug or defective gasket
2Loosened oil pan fitting bolts or defective oil pan
COOLING SYSTEM
33221Overheating
333Over cooling
OTHERS
113 3Malfunction of Evaporative Emission Control
System
21Stuck or damaged throttle valve
322 2Accelerator cable out of adjustment
77
2-3DIAGNOSTICS
1. Engine Trouble in General
Page 186 of 2248
1. Fuel System
A: SPECIFICATIONS
Fuel tankCapacity 60(15.9 US gal, 13.2 Imp gal)
Location Under rear seat
Fuel pumpType Impeller
Discharge pressure 250.1 kPa (2.55 kg/cm
2, 36.3 psi)
Discharge flowAWD: More than 80(21.1 US gal, 17.6 Imp gal)/h
FWD: More than 65(17.2 US gal, 14.3 Imp gal)/h
[12 V at 300 kPa (3.06 kg/cm
2, 43.5 psi)]
Fuel filterCartridge type
2
2-8SPECIFICATIONS AND SERVICE DATA
1. Fuel System
Page 187 of 2248
1. Fuel Tank
1. AWD MODEL
B2M0630A
1Heat sealed cover
2Fuel tank band
3Protector LH
4Protector RH
5Fuel tank
6Fuel pump gasket
7Fuel pump ASSY
8Fuel cut valve gasket
9Fuel cut valve
10Evaporation hose C
11Evaporation hose A
12Clip
13Joint pipe
14Evaporation hose B
15Evaporation pipe ASSY
16Evaporation hose D
17Clamp
18Jet pump hose A
19Fuel delivery hose A
20Fuel return hose A
21Fuel pipe ASSY
22Jet pump hose B
23Fuel delivery hose B
24Fuel return hose B
25Evaporation hose E
26Fuel sub meter gasket
27Jet pump filter
28Fuel sub meter unit
29Roll over valve
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 4.4±1.5 (0.45±0.15, 3.3±1.1)
T2: 7.4±2.0 (0.75±0.2, 5.4±1.4)
T3: 33±10 (3.4±1.0, 25±7)
3
2-8COMPONENT PARTS
1. Fuel Tank
Page 189 of 2248
2. Fuel Line
B2M0046A
1Clamp
2Fuel delivery hose A
3Fuel filter bracket
4Fuel filter holder
5Fuel filter cup
6Fuel filter
7Evaporation hose
8Clip
9Fuel delivery hose B
10Fuel return hose
11Air vent hose
12Canister
13Canister hose A
14Two-way valve
15Canister hose B
16Canister hose C
17Canister bracket
18Fuel pipe ASSY
5
2-8COMPONENT PARTS
2. Fuel Line
Page 192 of 2248
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.
8
2-8SERVICE PROCEDURE
1. Precautions - 2. On-Car Services
Page 193 of 2248
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.
8
2-8SERVICE PROCEDURE
1. Precautions - 2. On-Car Services
Page 200 of 2248
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.
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.
14
2-8SERVICE PROCEDURE
4. Fuel Filler Pipe - 5. Fuel Filter
Page 201 of 2248
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.
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.
14
2-8SERVICE PROCEDURE
4. Fuel Filler Pipe - 5. Fuel Filter
Page 202 of 2248
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.
2) Disconnect fuel delivery hose
1and return hose2.
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.
15
2-8SERVICE PROCEDURE
5. Fuel Filter - 6. Fuel Pump
Page 203 of 2248
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.
2) Disconnect fuel delivery hose
1and return hose2.
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.
15
2-8SERVICE PROCEDURE
5. Fuel Filter - 6. Fuel Pump