light SUBARU LEGACY 1995 Service User Guide

1. Lubrication System
A: SPECIFICATIONS
Lubrication methodForced lubrication
Oil pumpPump typeTrochoid type
Number of teethInner rotor 9
Outer rotor 10
Outer rotor diameter x thickness 78x9mm(3.07 x 0.35 in)
Tip clearance between inner and outer rotorSTANDARD 0.04 — 0.14 mm (0.0016 — 0.0055 in)
LIMIT 0.18 mm (0.0071 in)
Side clearance between inner rotor and pump
caseSTANDARD 0.02 — 0.07 mm (0.0008 — 0.0028 in)
LIMIT 0.15 mm (0.0059 in)
Case clearance between outer rotor and pump
caseSTANDARD 0.10 — 0.175 mm (0.0039 — 0.0069 in)
LIMIT 0.20 mm (0.0079 in)
Capacity at
80°C (176°F)700 rpm Discharge- pressure 98 kPa (1.0 kg/cm
2, 14 psi) or more
- quantity 4.2
(4.4 US qt, 3.7 Imp qt)/min.
5,000 rpm Discharge- pressure 294 kPa (3.0 kg/cm
2, 43 psi) or more
- quantity 42.0
(11.10 US gal, 9.24 Imp gal)/min.
Relief valve operation pressure 490 kPa (5.0 kg/cm
2, 71 psi)
Oil filterTypeFull-flow filter type
Filtration area 1,000 cm
2(155 sq in)
By-pass valve opening pressure 157 kPa (1.6 kg/cm
2, 23 psi)
Outer diameter x width 80 x 70 mm (3.15 x 2.76 in)
Oil filter to engine thread size M 20 x 1.5
Relief valve (on rocker shaft) operation pressure 69 kPa (0.7kg/cm
2, 10 psi)
Oil pressure
switchTypeImmersed contact point type
Working voltage — wattage 12 V — 3.4 W or less
Warning light activation pressure 14.7 kPa (0.15 kg/cm
2, 2.1 psi)
Proof pressure More than 981 kPa (10 kg/cm
2, 142 psi)
Oil pan capacity4.0
(4.2 US qt, 3.5 Imp qt)
2
2-4SPECIFICATIONS AND SERVICE DATA
1. Lubrication System

1. Engine Lubrication System
Before troubleshooting, make sure that the engine oil level
is correct and no oil leakage exists.
Trouble Possible cause Corrective action
1. Warning light remains
on.1) Oil pressure switch
failureCracked diaphragm or oil leakage within switch Replace.
Broken spring or seized contacts Replace.
2) Low oil pressureClogged oil filter Replace.
Malfunction of oil by-pass valve of oil filter Clean or replace.
Malfunction of oil relief valve of oil pump Clean or replace.
Clogged oil passage Clean.
Excessive tip clearance and side clearance of oil
pump rotor and gearReplace.
Clogged oil strainer or broken pipe Clean or replace.
3) No oil pressureInsufficient engine oil Replenish.
Broken pipe of oil strainer Replace.
Stuck oil pump rotor Replace.
2. Warning light does not
go on.1) Burn-out bulb Replace.
2) Poor contact of switch contact points Replace.
3) Disconnection of wiring Repair.
3. Warning light flickers
momentarily.1) Poor contact at terminals Repair.
2) Defective wiring harness Repair.
3) Low oil pressureCheck for the same pos-
sible causes as listed in
1.—2)
16
2-4DIAGNOSTICS
1. Engine Lubrication System

B2M0320
8) Remove radiator upper brackets.
NOTE:
Place left upper radiator bracket between grille and body.
9) While slightly lifting radiator, slide it to left.
G2M0220
10) Lift radiator up and away from vehicle.
B2M0307A
B: INSTALLATION
1) Attach radiator mounting cushions to body.
G2M0220
2) Install radiator while fitting radiator pins to cushions.
13
2-5SERVICE PROCEDURE
4. Radiator

B2M0173A
B: INSPECTION
1. RELEASE BEARING
CAUTION:
Since this bearing is grease sealed and is of a nonlu-
brication type, do not wash with gasoline or any sol-
vent when servicing the clutch.
1) Check the bearing for smooth movement by applying
force in the radial direction.
Radial direction stroke:
FWD; Approx.
1.0 mm (0.039 in)
AWD; Approx.
1.4 mm (0.055 in)
G2M0240
2) Check the bearing for smooth rotation by applying pres-
sure in the thrust direction.
3) Check wear and damage of bearing case surface con-
tacting with lever.
G2M0241
2. RELEASE LEVER
Check lever pivot portion and the point of contact with
release bearing case for wear.
C: INSTALLATION
CAUTION:
Before or during assembling, lubricate the following
points with a light coat of grease.
Inner groove of release bearing
Contact surface of lever and pivot
Contact surface of lever and bearing
Transmission main shaft spline (Use grease contain-
ing molybdenum disulphide.)
6
2-10SERVICE PROCEDURE
3. Release Bearing and Lever

G2M0299
20) Remove bolts which hold upper side of transmission to
engine.
G2M0300
21) Remove engine from vehicle.
(1) Slightly raise engine.
(2) Raise transmission with garage jack.
(3) Move engine horizontally until mainshaft is with-
drawn from clutch cover.
(4) Slowly move engine away from engine compart-
ment.
CAUTION:
Be careful not to damage adjacent parts or body pan-
els with crank pulley, oil pressure gauge, etc.
17
2-11SERVICE PROCEDURE
2. Engine

G2M0266
1) Open front hood fully, and support with stay.
2) Disconnect battery ground terminal.
3) Remove air intake duct.
G2M0544
4) Disconnect connectors and cables.
(1) Disconnect the following connectors.
Front oxygen sensor connector
G2M0307
Transmission harness connector
Transmission ground terminal
B2M0337
Neutral position switch connector (MT model)
Back-up light switch connector (MT model)
G2M0827
Vehicle speed sensor 2
27
2-11SERVICE PROCEDURE
3. Transmission

G2M0312
16) Install transmission connector holder bracket.
B2M0031
17) Install ATF level gauge. (AT model)
18) Connect connectors and cables.
(1) Connect the following connectors.
Transmission harness connectors
Transmission ground terminal
Front oxygen sensor connector
Vehicle speed sensor 2
Neutral position switch connector (MT model)
Back-up light switch connector (MT model)
(2) Connect the following cables.
Cruise control cable
(With cruise control model)
Clutch cable
G2M0309
19) Install starter.
(1) Install starter onto transmission case, and connect
connectors and terminals.
(2) Tighten bolt and nut which install starter onto trans-
mission.
Tightening torque:
40±4 N⋅m (4.1±0.4 kg-m, 29.7±2.9 ft-lb)
41
2-11SERVICE PROCEDURE
3. Transmission

1. Transfer Case and Extension (AWD
Model)
B3M0326A

1Transfer cover


2Cover gasket


3Oil seal


4Gasket


5Neutral switch


6Back-up light switch


7Transfer case


8Gasket


9Oil guide


10Ball


11Reverse accent spring


12Gasket


13Plug


14Snap ring (Inner)


15Reverse check plate

16Reverse check spring


17Reverse return spring


18Reverse check cam


19Reverse accent shaft


20O-ring


21Adjusting select shim


22Reverse check sleeve


23Adjusting washer


24Ball bearing


25Transfer driven gear


26Ball bearing


27Oil seal


28Shift bracket


29Extension cover


30Gasket

31Snap ring (Outer-30)


32Gasket


33Ball bearing


34Snap ring (Inner-72)


35Transfer drive gear


36Extension
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 5±1 (0.5±0.1, 3.6±0.7)
T2: 10±1 (1.0±0.1, 7.2±0.7)
T3: 15.7±1.5
(1.6±0.15, 11.6±1.1)
T4: 25±2 (2.5±0.2, 18.1±1.4)
T5: 37±3 (3.8±0.3, 27.5±2.2)
6
3-1COMPONENT PARTS
1. Transfer Case and Extension (AWD Model)

2. Rear Case (FWD Model)
G3M0265

1Rear case


2Case gasket


3Back-up light switch


4Neutral switch


5Reverse check sleeve ASSY


6Gasket


7Adjusting shim

8O-ring


9Oil seal
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 6.4±0.5 (0.65±0.05, 4.7±0.4)
T2: 25±2 (2.5±0.2, 18.1±1.4)
7
3-1COMPONENT PARTS
2. Rear Case (FWD Model)

B3M0037A
B: PRECAUTIONS
1) The following job should be followed before disassem-
bly:
(1) Clean oil, grease, dirt and dust from transmission.
(2) Remove drain plug

1to drain oil. After draining,
retighten it as before.
CAUTION:
Replace gasket with a new one.
Tightening torque:
44±3 N⋅m (4.5±0.3 kg-m, 32.5±2.2 ft-lb)
G3M0517
(3) Attach transmission to ST.
ST 499937100 TRANSMISSION STAND SET
2) Rotating parts should be coated with oil prior to assem-
bly.
3) All disassembled parts, if to be reused, should be rein-
stalled in the original positions and directions.
4) Gaskets and lock washers must be replaced with new
ones.
5) Liquid gasket should be used where specified to pre-
vent leakage.
6) Fill transmission gear oil through the oil level gauge
hole up to upper point level gauge.
C: INSPECTION
Disassembled parts should be washed clean first and then
inspected carefully.
1) Bearings
Replace bearings in the following cases:
Bearings whose balls, outer races and inner races are
broken or rusty.
Worn bearings
Bearings that fail to turn smoothly or make abnormal
noise when turned after gear oil lubrication.
B3M0038A
The ball bearing
3on the rear side of the drive pinion shaft


2should be checked for smooth rotation before the drive
pinion assembly is disassembled. In this case, because a
preload is working on the bearing, its rotation feels like it is
slightly dragging unlike the other bearings.
Bearings having other defects
16
3-1SERVICE PROCEDURE
1. General