engine SUBARU LEGACY 1996 Service Repair Manual

A
Does 12 volts exist in A/C cut relay connector (L/Y)
and (Br/R)?
Ye s
No
Faulty harness
Does 12 volts exist in A/C cut relay connector (Y/G)?
Ye s
No
Does 0 volts exist in A/C cut relay connector (G)?
Ye s N o
Faulty A/C cut relay
Check engine control
module.
Does 12 volts exist in compressor connector (Y/G)?
Ye s
No
Faulty harness
Faulty magnet clutch

B
Does 12 volts exist in thermo control amplifier connec-
tor (Br/R)?
Ye s
No
Faulty harness
Does 0 volts exist in thermo control amplifier connec-
tor (R)?
Ye s
No
Faulty harness or blower switch
Does 0 volts exist in thermo control amplifier connec-
tor (W)?
Ye s
No
Faulty thermo control amplifier
Faulty harness









48
4-7DIAGNOSTICS
5. Compressor Clutch Diagnosis

1. ENGINE COMPARTMENT AND ROOM
B5M0187A
0Cowl panel weather attaching hole 6 mm (0.24 in) dia.

1Hood hinge front attaching hole M8

2Strut mount attaching hole (Front center) 9.5 mm (0.374 in)
dia.

3Front fender attaching hole (Tip) M6

4Rear upper surface of front side frame 12 mm (0.47 in) dia.

5Middle upper surface of front side frame 20 mm (0.79 in) dia.

6Front side frame front upper surface 14 x 16 mm (0.55 x 0.63
in) dia. oblong hole

7Side frame of front side frame 12 mm (0.47 in) dia.

8Headlight attaching hole at radiator side panel 6.2x9mm
(0.244 x 0.35 in) dia.

9Radiator panel side (LWR) gauge hole 23 mm (0.91 in) dia.

23Rear strut mount attaching hole (Side) 10 mm (0.39 in) dia.

24Rear strut mount attaching hole (Center) 12 mm (0.47 in) dia.

25Radiator panel (UPR) middle hole 6 mm (0.24 in) dia.

26Front fender attaching hole at radiator panel side M6

27Front fender attaching hole at front pillar lower portion M6

28Hinge middle hole at front pillar center 10 mm (0.39 in) dia.

29Front fender attaching hole at front pillar center portion M6

30Retainer attaching square hole at front pillar7x7mm(0.28
x 0.28 in)
31Retainer attaching hole at center pillar (Front) 3.5 mm (0.138
in) dia.

32Retainer attaching hole at center pillar (Rear) 3.5 mm (0.138
in) dia.

33Lower side of rear door hinge M8

34Center pillar (LWR) gauge hole 27 mm (1.06 in) dia.

35Rear quarter outer corner patch attaching hole 5.2 mm (0.205
in) dia.

39Front rail center notch

40Front glass upper locating notch RH: 6.5 mm (0.256 in) dia.,
LH: 6.5 x 10 mm (0.256 x 0.39 in) dia. oblong hole

41Stud bolt lower locating notch

48Front center of rear floor pan 8 mm (0.31 in) dia.

51Front upper pillar (Inner) 7 mm (0.28 in) dia.

52Front seat belt adjust plate attaching hole 12 mm (0.47 in)
dia.

53Rear door hinge middle hole 10 mm (0.39 in) dia.

54Rear floor, near door 8 mm (0.31 in) dia.

55Trim upper attaching hole at 6 light 8 mm (0.31 in) dia.

56Trim lower attaching hole at 6 light 8 mm (0.31 in) dia.

58Rear floor, near floor strut 15 x 20 mm (0.59 x 0.79 in) dia.
oblong hole
3
5-1SERVICE DATA
2. Body Datum Points

1. Hood
The hood lock has a dual locking design which consists of
a main lock and a safety lock mechanism. When the
release knob located at the front pillar on the driver’s side
is pulled back, the main lock is released through the cable
attached to the knob.
The safety lock can be released by pushing the lever pro-
truding above the front grill while opening the hood.
G5M0137
A: REMOVAL
1. HOOD
1) Open front hood, and remove washer hose.
2) Remove attaching bolts.
3) Detach front hood from hinges.
B5M0267
2. HOOD LOCK
1) Open front hood and remove front grille.
2) Remove bolts which secure lock assembly to radiator
panel, and remove lock assembly.
3) Disconnect release cable from lock assembly.
B5M0319
3. RELEASE CABLE
1) Remove front grille.
2) Remove release cable from opener lever in passenger
compartment.
3) Remove release cable from lock assembly.
4) Remove cable clip from engine compartment.
G5M0140
B: POINTS TO CHECK
1) Check striker for bending or abnormal wear.
2) Check safety lever for improper movement.
3) Check other levers and spring for rust formation and
unsmooth movement.
33
5-1SERVICE PROCEDURE
1. Hood

B5M0275
9) Remove bolts (engine compartment side) from bumper
stays.
B5M0276
10) Remove front bumper assembly.
NOTE:
Front bumper surface is accessible for removal after
removing the following parts:
Two bolts (on the lower center of bumper), mud guard,
bolts (on the side of bumper), front grille, headlight, clips
(on both sides of front bumper), clips (on the upper section
of bumper), and clips (on the lower section of bumper).
G6M0095
2. OUTBACK WITH STEP ROOF
1) Disconnect the ground cable from the battery.
B5M0273
2) Remove two bolts from lower center of bumper.
3) Remove mud guard.
NOTE:
It is not necessary to remove the entire mud guard.
Remove clips from the front section of mud guard, if nec-
essary.
4) Remove the canister.
B5M0274
5) Remove two bolts from side of bumper.
6) Remove front grill.
7) Remove headlight.
39
5-1SERVICE PROCEDURE
4. Front Bumper

B5M0376
8) Remove fog lamps.
9) Remove clips from both sides of front bumper.
NOTE:
When removing, push the pin at the center of clip with a
thin screwdriver.
B5M0275
10) Remove bolts (engine compartment side) from
bumper stays.
B5M0406
11) Remove front bumper assembly.
NOTE:
Front bumper surface is accessible for removal after
removing the following parts:
Two bolts (on the lower center of bumper), mud guard,
bolts (on the side of bumper), front grille, headlight, clips
(on both sides of front bumper), clips (on the upper section
of bumper), and clips (on the lower section of bumper).
B5M0375A
B: INSTALLATION
1. EXCEPT OUTBACK WITH STEP ROOF
To install the front bumper, reverse the above removal pro-
cedures.
CAUTION:

Be extremely careful to prevent scratches on
bumper face as it is made of resin.

Be careful not to scratch the body when removing or
installing the bumper.

When installing canister, insert air vent hose of can-
ister into the hole on body.

To facilitate installation of front bumper, insert the
protrusion inside bumper into the groove of body.
40
5-1SERVICE PROCEDURE
4. Front Bumper

1. Engine Electrical
A: SPECIFICATIONS
Item Designation
StarterType Reduction type
ModelMT
TN128000-8311AT
TN128000-8321
Manufacturer NIPPONDENSO TENNESSEE
Voltage and output 12 V — 1.0 kW 12 V — 1.4 kW
Direction of rotation Counterclockwise (when observed from pinion)
Number of pinion teeth 8 9
No-load
characteristicsVoltage 11 V
Current 90 A or less
Rotating
speed3,000 rpm or more 2,900 rpm or more
Load
characteristicsVoltage 8 V
Current 280 A or less 370 A or less
Torque 9.8 N⋅m (1.0 kg-m, 7.2 ft-lb) 13.7 N⋅m (1.4 kg-m, 10.1 ft-lb)
Rotating
speed900 rpm or more 880 rpm or more
Lock
characteristicsVoltage 5 V
Current 800 A or less 1,050 A or less
Torque 27.5 N⋅m (2.8 kg-m, 20.3 ft-lb) or more
GeneratorType Rotating-field three-phase type, Voltage regulator built-in type
Model LR185-701H
Manufacturer HITACHI AUTOMOTIVE PRODUCTS
Voltage and output 12 V — 85 A
Polarity on ground side Negative
Rotating direction Clockwise (when observed from pulley side)
Armature connection 3-phase Y-type
Output current1,500 rpm — 35 A or more
2,500 rpm — 62 A or more
5,000 rpm — 82 A or more
Regulated voltage 14.5
+0.3
0.4V [20°C (68°F)]
Ignition
coilModel F-569-01R
Manufacturer Diamond
Primary coil resistance 0.69Ω±10%
Secondary coil resistance 21.0 kΩ±15%
Insulation resistance between
primary terminal and caseMore than 10 MΩ
Spark
plugType and manufacturerRC10YC4 .......... CHAMPION
Alternate
(BKR6E-11 .......... NGK
K20PR-U11 .......... NIPPONDENSO)
Thread size mm 14, P = 1.25
Spark gap mm (in) 1.0 — 1.1 (0.039 — 0.043)
2
6-1SPECIFICATIONS AND SERVICE DATA
1. Engine Electrical

3. Spark Plug
A: REMOVAL AND INSTALLATION
CAUTION:
All spark plugs installed on an engine, must be of the
same heat range.
Spark plug:
CHAMPION: RC10YC4
(Alternate)
NGK: BKR6E-11
NIPPONDENSO: K20PR-U11
1) Remove spark plug cords by pulling boot, not cord itself.
2) Remove spark plugs.
3) When installing spark plugs on cylinder head, use spark
plug wrench.
Tightening torque (Spark plug):
20.6±2.9 N⋅m (2.10±0.30 kg-m, 15.19±2.14 ft-lb)
CAUTION:
The above torque should be only applied to new spark
plugs without oil on their threads.
In case their threads are lubricated, the torque should
be reduced by approximately 1/3 of the specified
torque in order to avoid their over-stressing.
4) Connect spark plug cords.
G6M0086
B: INSPECTION
Check electrodes and inner and outer porcelain of plugs,
noting the type of deposits and the degree of electrode
erosion.
G6M0087
1) Normal
Brown to grayish-tan deposits and slight electrode wear
indicate correct spark plug heat range.
22
6-1SERVICE PROCEDURE
3. Spark Plug

G6M0088
2) Carbon fouled
Dry fluffy carbon deposits on insulator and electrode are
mostly caused by slow speed driving in city, weak ignition,
too rich fuel mixture, dirty air cleaner, etc.
It is advisable to replace with plugs having hotter heat
range.
G6M0089
3) Oil fouled
Wet black deposits show excessive oil entrance into com-
bustion chamber through worn rings and pistons or exces-
sive clearance between valve guides and stems. If same
condition remains after repair, use a hotter plug.
G6M0090
4) Overheating
White or light gray insulator with black or gray brown spots
and bluish burnt electrodes indicate engine overheating.
Moreover, the appearance results from incorrect ignition
timing, loose spark plugs, wrong selection of fuel, hotter
range plug, etc. It is advisable to replace with plugs having
colder heat range.
G6M0091
C: CLEANING AND REGAPPING
Clean spark plugs in a sand blast type cleaner.
Avoid excessive blasting. Clean and remove carbon or
oxide deposits, but do not wear away porcelain.
If deposits are too stubborn, discard plugs.
After cleaning spark plugs, recondition firing surface of
electrodes with file. Then correct the spark plug gap using
a gap gauge.
Spark plug gap: L
1.0—1.1 mm (0.039—0.043 in)
D: REMOVAL AND INSTALLATION (2500 cc
EXCEPT OUTBACK MODEL)
CAUTION:
All spark plugs installed on an engine, must be of the
same heat range.
Spark plug:
NGK: PFR5B-11
23
6-1SERVICE PROCEDURE
3. Spark Plug

B6M0563A
6) Remove #4 spark plug cord by pulling boot, not cord
itself.
B6M0564
7) Remove spark plug with the spark plug socket.
8) Installation is in the reverse order of removal.
Tightening torque (Spark plug):
20.6±2.9 N⋅m (2.10±0.30 kg-m, 15.19±2.14 ft-lb)
CAUTION:
The above torque should be only applied to new spark
plugs without oil on their threads.
In case their threads are lubricated, the torque should
be reduced by approximately 1/3 of the specified
torque in order to avoid over-stressing.
E: REMOVAL (2500 cc OUTBACK MODEL)
CAUTION:
All spark plugs installed on an engine, must be of the
same heat range.
Spark plug:
NGK: PFR5B-11
G6M0095
1. #1 SPARK PLUG
1) Disconnect battery ground cable.
28
6-1SERVICE PROCEDURE
3. Spark Plug

1. Starter
Trouble Probable cause
Starter does not start.Magnet switch does not operate.
(no clicks are heard.)Magnet switch poor contact or discontinuity
of pull-in coil circuit
Improper sliding of magnet switch plunger
Magnet switch operates.
(clicks are issued.)Poor contact of magnet switch’s main con-
tact point
Layer short of armature
Contaminants on armature commutator
High armature mica
Improper grounding of yoke field coil
Insufficient carbon brush length
Insufficient brush spring pressure
Starter starts but does not crank engine.Failure of pinion gear to engage ring gearWorn pinion teeth
Improper sliding of overrunning clutch
Improper adjustment of stud bolt
Clutch slippage Faulty clutch roller spring
Starter starts but engine cranks too slowly.Poor contact of magnet switch’s main con-
tact point
Layer short of armature
Discontinuity, burning or wear of armature
commutator
Poor grounding of yoke field coil
Insufficient brush length
Insufficient brush spring pressure
Abnormal brush wear
Starter overruns.Magnet switch coil is a layer short.
36
6-1DIAGNOSTICS
1. Starter