sensor SUBARU LEGACY 1995 Service User Guide

(7) Further tighten all bolts by 80 to 90°in numerical
sequence.
CAUTION:
Ensure that the total“re-tightening angle”[steps (6)
and (7) above] do not exceed 180°.
3) Install oil level gauge guide attaching bolt (left side
only).
4) Install timing belt, camshaft sprocket and related parts.
<Ref. to 2-3 [W3C1].>
2. INTAKE MANIFOLD
CAUTION:
Use dry compressed air to remove foreign particles
before installing each solenoid valve and sensor.
1) Install engine coolant pipe.
2) Install intake manifold. <Ref. to 2-7 [W4D0].>
3) Remove ENGINE STAND (ST).
49
2-3SERVICE PROCEDURE
6. Cylinder Head

G2M0544
2. Oil Pan and Oil Strainer
A: REMOVAL
1) Remove front wheels.
2) Remove air intake duct.
3) Disconnect connector from front oxygen sensor.
G2M0295
4) Remove pitching stopper.
B2M0320
5) Remove radiator upper brackets.
B2M0053
6) Support engine with a lifting device and wire ropes.
7) Lift-up the vehicle.
CAUTION:
At this time, raise up wire ropes.
G2M0066
8) Drain engine oil.
Set container under the vehicle, and remove drain plug
from oil pan.
8
2-4SERVICE PROCEDURE
2. Oil Pan and Oil Strainer

B2M0312
9) Disconnect connector from rear oxygen sensor.
B2M0054
10) Remove front exhaust pipe.
(1) Separate front catalytic converter from center
exhaust pipe.
(2) Remove front exhaust pipe from engine.
(3) Remove bolt which installs front exhaust pipe on
bracket.
G2M0293
11) Remove nuts which install front cushion rubber onto
front crossmember.
G2M0081
12) Remove bolts which install oil pan on cylinder block
while raising up engine.
13) Insert oil pan cutter blade between cylinder block-to-oil
pan clearance.
CAUTION:
Do not use a screwdriver or similar tool in place of oil
pan cutter.
G2M0082
14) Separate oil strainer from oil strainer stay.
9
2-4SERVICE PROCEDURE
2. Oil Pan and Oil Strainer

B2M0055
(3) Tighten nuts which install front catalytic converter to
center exhaust pipe.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0056
(4) Tighten bolt which installs front exhaust pipe on
bracket.
Tightening torque:
24±3 N⋅m (2.4±0.3 kg-m, 17.4±2.2 ft-lb)
B2M0312
9) Connect connector to rear oxygen sensor.
B2M0053
10) Lower the vehicle.
CAUTION:
At this time, lower lifting device and release steel
cables.
11) Remove lifting device and steel cables.
G2M0544
12) Connect connector to front oxygen sensor.
12
2-4SERVICE PROCEDURE
2. Oil Pan and Oil Strainer

3. Engine Coolant Pipe
G2M0203

1Engine coolant temperature sensor


2Engine coolant temperature gauge


3Engine coolant pipe


4O-ring


5By-pass hose
Tightening torque: N⋅m (kg-m, ft-lb)
T: 6.4±0.5 (0.65±0.05, 4.7±0.4)
5
2-5COMPONENT PARTS
3. Engine Coolant Pipe

B2M0302
7) Remove timing belt.
<Ref. to 1-5 [02A0].>
B2M0303
8) Remove belt tension adjuster.
G2M0417
9) Remove camshaft position sensor.
<Ref. to 2-7 [W10A0].>
G2M0207
10) Remove left side camshaft pulley by using ST.
ST 499207100 CAMSHAFT SPROCKET WRENCH
G2M0208
11) Remove left side rear timing belt cover.
9
2-5SERVICE PROCEDURE
2. Engine Coolant Pump

1. Engine Cooling System
Trouble Possible cause Corrective action
Over-heatinga. Insufficient engine coolantReplenish engine coolant, inspect for leakage, and
repair.
b. Loose timing belt Repair or replace timing belt tensioner.
c. Oil on drive belt Replace.
d. Malfunction of thermostat Replace.
e. Malfunction of engine coolant pump Replace.
f. Clogged engine coolant passage Clean.
g. Improper ignition timingInspect and repair ignition control system.
<Ref. to 2-7 On-Board Diagnostics II System.>
h. Clogged or leaking radiator Clean or repair, or replace.
i. Improper engine oil in engine coolant Replace engine coolant.
j. Air/fuel mixture ratio too leanInspect and repair fuel injection system.
<Ref. to 2-7 On-Board Diagnostics II System.>
k. Excessive back pressure in exhaust system Clean or replace.
l. Insufficient clearance between piston and cylinder Adjust or replace.
m. Slipping clutch Repair or replace.
n. Dragging brake Adjust.
o. Improper transmission oil Replace.
p. Defective thermostat Replace.
q. Malfunction of electric fanInspect radiator fan relay, engine coolant temperature
sensor or radiator motor and replace there.
Over-coolinga. Atmospheric temperature extremely low Partly cover radiator front area.
b. Defective thermostat Replace.
Engine coolant
leaks.a. Loosened or damaged connecting units on hoses Repair or replace.
b. Leakage from engine coolant pump Replace.
c. Leakage from engine coolant pipe Repair or replace.
d. Leakage around cylinder head gasket Retighten cylinder head bolts or replace gasket.
e. Damaged or cracked cylinder head and crankcase Repair or replace.
f. Damaged or cracked thermostat case Repair or replace.
g. Leakage from radiator Repair or replace.
Noisea. Defective drive belt Replace.
b. Defective radiator fan Replace.
c. Defective engine coolant pump bearing Replace engine coolant pump.
d. Defective engine coolant pump mechanical seal Replace engine coolant pump.
19
2-5DIAGNOSTICS
1. Engine Cooling System

2. Air Intake System
B2M0152A

1Gasket


2Throttle position sensor


3Throttle body


4Clamp


5Air intake duct


6By-pass hose
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 2.2±0.2 (0.22±0.02, 1.6±0.1)
T2: 22±2 (2.2±0.2, 15.9±1.4)
3
2-7COMPONENT PARTS
2. Air Intake System

3. Air Cleaner
B2M0153A

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)
4
2-7COMPONENT PARTS
3. Air Cleaner

B2M0154
1. Air Cleaner and Air Intake Duct
A: REMOVAL AND INSTALLATION
1) Loosen clamp which connect air intake duct to throttle
body and mass air flow sensor.
2) Disconnect blow-by hoses from air intake duct.
3) Remove air intake duct.
G2M0305
4) Disconnect connector from mass air flow sensor.
G2M0390
5) Remove clips of air cleaner upper cover.
6) Remove air cleaner element.
G2M0391
7) Remove air cleaner lower case.
8) Installation is in the reverse order of removal.
5
2-7SERVICE PROCEDURE
1. Air Cleaner and Air Intake Duct