1996 SUBARU LEGACY oil type

SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)
[T5P1]
5-5b
5
.
Diagnostics
Chart
with
Trouble
Code

1
.
AIRBAG
COMPONENT
PARTS
APPEARANCE

INSPECTION

1)
Conduct
on-board
diagnostic
and
call
up
trouble

codes
stored
in
memory
.
<
Ref
.
to
[T4B0]
.*2>

2)
Select
trouble
code
required
to
check
airbag
compo-

nent
parts
from
those
listed
in
table
and
reproduce
symp-

tom
.

Trouble
codes
Check
parts
Refer
to
5-5
:

Airbag
module
(Passenger)
W3A2
Sri

04*
Airbag
main
harness
W5A0
*1

Airbag
control
module
W6A0
tr2

e
Fuse
No
.
8
T5D3
Sri

11
*
Airbag
main
harness
W5A0
*1
Airbag
control
module
W6A0
x`r2

Body
harness
-

Roll
connector
W7A0
*2

9
Airbag
module
(Driver)
W3A1
x`ri
12
Airbag
main
harness
W5A0
Sri

Airbag
control
module
W6A0
*2

Airbag
module
(Driver)
W3A1
Sri

o
Roll
connector
W7A0
*2
13
Airbag
main
harness
W5A0
*1
Airbag
control
module
W6A0
*2

21
e
Airbag
control
module
W6A0
*2

Airbag
module
(Passenger)
W3A2*1

22
9
Airbag
main
harness
W5A0
Sri

Airbag
control
module
W6A0*2

33
*
Airbag
control
module
W6A0
x`r2

Airbag
main
harness
W5A0
*1

34*
Airbag
module
(Passenger)
W3A2
*1

Airbag
control
module
W6A0*2

Airbag
module
(Driver)
W3A1
Sri

9
Roll
connector
W7A0
ir2
41
r
Airbag
main
harness
W5A0
Sri

Airbag
control
module
W6A0*2

Airbag
module
(Passenger)
W3A2
Sri

42
*
Airbag
main
harness
W5A0
*i

Airbag
control
module
W6A0*2

Airbag
module
(Driver)
W3A1
*1

e
Roil
connector
W7A0
*2
43
Airbag
main
harness
W5A0
x`ri

Airbag
control
module
W6A0
*2

39

IMPORTANT
SAFETY
NOTICE

Providing
appropriate
service
and
repair
is
a
matter
of
great
importance
in
the
serviceman's
safety

maintenance
and
safe
operation,
function
and
performance
which
the
SUBARU
vehicle
possesses
.

In
case
the
replacement
of
partsor
replenishment
of
consumables
is
required,
genuine
SUBARU
parts

whose
parts
numbers
are
designated
or
their
equivalents
must
be
utilized
.

It
must
be
made
well
known
that
the
safety
of
the
serviceman
and
the
safe
operation
of
thevehicle
would

be
jeopardized
if
heused
any
service
parts,
consumables,
special
tools
and
work
procedure
manuals
which

are
not
approved
or
designated
by
SUBARU
.

How
to
use
this
manual

Service
Manual
is
divided
into
six
volumes
bysection
.
Refer
to
the
Table
of
Contents,
select
anduse
the
nec-

essary
section
.

This
supplement
includes
corrective
and/or
additional
information
in
relationto
the
above
six
service
manual

volumes
.
Please
place
it
in
a
handy
place
for
ready
reference
.

For
informationnot
covered
in
this
supplement,
refer
to
1992
SERVICE
MANUALS
(Pub
.
No
.
G205BE
and
G206BE)

and
1993
SERVICE
MANUAL
(Pub
.
No
.
G210BE)
.

Each
chapter
in
the
manual
is
basically
made
of
the
following
five
types
of
areas
.

M
:
Mechanism
and
function

C
:
Component
parts

W
:
Service
procedure

(X
:
Service
procedure)

(Y
:
Service
procedure)

T
:
Troubleshooting

~
The
description
of
each
area
is
provided
withfour
types
of
titles
different
in
size
as
shown
below
.
The
Title
No
.

or
Symbol
prefixes
each
title
in
order
that
the
construction
ofthe
article
and
theflow
of
explanation
can
be
easily

understood
.

[Example
of
each
title]

"
Area
title
:
W
.
Service
procedure
(one
of
the
five
types
of
areas)

"
Large
title
(Heading)
:
1
.
Oil
Pump
(to
denotethe
main
item
of
explanation)

"
Medium
title
(Section)
:
A
.
REMOVAL
(to
denote
thetype
of
work
in
principle)

"
Small
title
(Sub-section)
:
1
.
INNER
ROTATOR
(to
denote
a
derivative
item
of
explanation)

2

1. Engine
A: SPECIFICATIONS
EngineModel2200 cc
TypeHorizontally opposed, liquid cooled, 4-cylinder, 4-stroke
gasoline engine
Valve arrangement Belt driven, single over-head camshaft, 4-valve/cylinder
Bore x Stroke mm (in) 96.9 x 75.0 (3.815 x 2.953)
Displacement cm
3(cu in) 2,212 (135.0)
Compression ratio9.7
Compression pressure
(at 200 — 300 rpm)kPa (kg/cm
2, psi)1,079 — 1,275
(11.0 — 13.0, 156 — 185)
Number of piston rings Pressure ring: 2, Oil ring: 1
Intake valve timingOpening 1° BTDC
Closing 55° ABDC
Exhaust valve timingOpening 48° BBDC
Closing 12° ATDC
Idling speed
[At neutral position on MT, or
“P” or “N” position on AT] rpm700±100 (No load)
850±50 (A/C switch ON)
Firing order1,3,2,4
Ignition timing BTDC/rpm 14°±8°/700 (MT), 20°±8°/700 (AT)
2
2-3SPECIFICATIONS AND SERVICE DATA
1. Engine

2. Engine Noise
Valve lash adjusters may make clicking noise once engine
starts. It is normal if clicking noise ceases after a few min-
utes.
If clicking noise continues after a few minutes, check
engine oil level and add oil if necessary.
Then, do as follows to cease clicking noise.
1) Warm-up engine for five minutes.
2) Turn ignition switch OFF.
3) Connect test mode connector.
4) Start the engine and run it at approximately 2,000 rpm
for twenty minutes.
5) Turn ignition switch OFF.
6) Disconnect test mode connector.
7) Start the engine and check that clicking noise is ceased.
If noise still exists, conduct troubleshooting procedures in
accordance with the following table.
CAUTION:
Do not disconnect spark plug cord while engine is run-
ning.
Type of sound Condition Possible cause
Regular clicking soundSound increases as engine
speed increases.Valve mechanism is defective.
Broken lash adjuster
Worn valve rocker
Worn camshaft
Broken valve spring
Worn valve lifter hole
Heavy and dull clankOil pressure is low.Worn crankshaft main bearing
Worn connecting rod bearing (big end)
Oil pressure is normal.Loose flywheel mounting bolts
Damaged engine mounting
High-pitched clank
(Spark knock)Sound is noticeable when
accelerating with an overload.Ignition timing advanced
Accumulation of carbon inside combustion chamber
Wrong spark plug
Improper gasoline
Clank when engine speed is
medium (1,000 to 2,000 rpm).Sound is reduced when fuel
injector connector of noisy
cylinder is disconnected.
(NOTE*)Worn crankshaft main bearing
Worn bearing at crankshaft end of connecting rod
Knocking sound when engine
is operating under idling speed
and engine is warm.Sound is reduced when fuel
injector connector of noisy
cylinder is disconnected.
(NOTE*)Worn cylinder liner and piston ring
Broken or stuck piston ring
Worn piston pin and hole at piston end of connecting rod
Sound is not reduced if each
fuel injector connector is
disconnected in turn. (NOTE*)Unusually worn valve lifter
Worn cam gear
Worn camshaft journal bore in crankcase
Squeaky sound—Insufficient generator lubrication
Rubbing sound—Defective generator brush and rotor contact
Gear scream when starting
engine—Defective ignition starter switch
Worn gear and starter pinion
Sound like polishing glass with
a dry cloth—Loose drive belt
Defective engine coolant pump shaft
78
2-3DIAGNOSTICS
2. Engine Noise

1. Engine
A: SPECIFICATIONS
EngineModel2500 cc
TypeHorizontally opposed, liquid cooled, 4-cylinder, 4-stroke
gasoline engine
Valve arrangement Belt driven, double over-head camshaft, 4-valve/cylinder
Bore x Stroke mm (in) 99.5 x 79.0 (3.917 x 3.110)
Displacement cm
3(cu in) 2,457 (149.93)
Compression ratio9.5
Compression pressure
(at 200 — 300 rpm)
kPa (kg/cm
2, psi) rpmStandard 1,216 (12.4, 176) 350
Limit 941 (9.6, 137) 350
Number of piston rings Pressure ring: 2, Oil ring: 1
Intake valve timingOpening 6° BTDC
Closing 50° ABDC
Exhaust valve timingOpening 62° BBDC
Closing 10° ATDC
Idling speed
[At neutral position on MT, or
“P” or “N” position on AT] rpm700±100 (No load)
850±50 (A/C switch ON)
Firing order1,3,2,4
Ignition timing BTDC/rpm 15°±8°/700 rpm
2
2-3bSPECIFICATIONS AND SERVICE DATA
1. Engine

If noise still exists, conduct diagnostics procedures in
accordance with the following table.
CAUTION:
Do not disconnect spark plug cord while engine is run-
ning.
Type of sound Condition Possible cause
Regular clicking soundSound increases as engine
speed increases.Valve mechanism is defective.
Broken lash adjuster
Worn camshaft
Broken valve spring
Worn valve lifter hole
Heavy and dull clankOil pressure is low.Worn crankshaft main bearing
Worn connecting rod bearing (big end)
Oil pressure is normal.Loose flywheel mounting bolts
Damaged engine mounting
High-pitched clank
(Spark knock)Sound is noticeable when
accelerating with an overload.Ignition timing advanced
Accumulation of carbon inside combustion chamber
Wrong spark plug
Improper gasoline
Clank when engine speed is
medium (1,000 to 2,000 rpm).Sound is reduced when fuel
injector connector of noisy
cylinder is disconnected.
(NOTE*)Worn crankshaft main bearing
Worn bearing at crankshaft end of connecting rod
Knocking sound when engine
is operating under idling speed
and engine is warm.Sound is reduced when fuel
injector connector of noisy
cylinder is disconnected.
(NOTE*)Worn cylinder liner and piston ring
Broken or stuck piston ring
Worn piston pin and hole at piston end of connecting rod
Sound is not reduced if each
fuel injector connector is
disconnected in turn. (NOTE*)Unusually worn valve lifter
Worn cam gear
Worn camshaft journal bore in crankcase
Squeaky sound—Insufficient generator lubrication
Rubbing sound—Defective generator brush and rotor contact
Gear scream when starting
engine—Defective ignition starter switch
Worn gear and starter pinion
Sound like polishing glass with
a dry cloth—Loose drive belt
Defective engine coolant pump shaft
Hissing sound—Loss of compression
Air leakage in air intake system, hoses, connections or
manifolds
Timing belt noise—Loose timing belt
Belt contacting case/adjacent part
NOTE*:
When disconnecting fuel injector connector, Malfunction Indicator Light (CHECK ENGINE light) illuminates and trouble code is stored in
ECM memory.
Therefore, carry out the CLEAR MEMORY MODE and INSPECTION MODE after connecting fuel injector connector. (Ref. to 2-7 On-Board
Diagnostics II System.)
79
2-3bDIAGNOSTICS
2. Engine Noise

1. Lubrication System
A: SPECIFICATIONS
1. 2200 cc MODEL
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

2. 2500 cc MODEL
Lubrication methodForced lubrication
Oil pumpPump typeTrochoid type
Number of teethInner rotor 9
Outer rotor 10
Outer rotor diameter x thickness 78 x 10 mm (3.07 x 0.39 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)600 rpm Discharge- pressure 98 kPa (1.0 kg/cm
2, 14 psi) or more
- quantity 4.6
(4.9 US qt, 4.0 Imp qt)/min.
5,000 rpm Discharge- pressure 294 kPa (3.0 kg/cm
2, 43 psi) or more
- quantity 47.0
(12.4 US gal, 10.3 Imp gal)/min.
Relief valve operation pressure 588 kPa (6.0 kg/cm
2, 85 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
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 capacity4.5
(4.8 US qt, 4.0 Imp qt)
3
2-4SPECIFICATIONS AND SERVICE DATA
1. Lubrication System