1995 SUBARU LEGACY engine

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 ratio9.5
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

B: SERVICE DATA
Belt
tension
adjusterProtrusion of adjuster rod 15.4—16.4 mm (0.606—0.646 in)
Belt ten-
sionerSpacer O.D. 16 mm (0.63 in)
Tensioner bush I.D. 16.16 mm (0.6362 in)
Clearance between spacer and bushSTD 0.117—0.180 mm (0.0046—0.0071 in)
Limit 0.230 mm (0.0091 in)
Side clearance of spacerSTD 0.37—0.54 mm (0.0146—0.0213 in)
Limit 0.8 mm (0.031 in)
Valve
rocker armClearance between shaft and armSTD 0.020—0.054 mm (0.0008—0.0021 in)
Limit 0.10 mm (0.0039 in)
CamshaftBend limit 0.025 mm (0.0010 in)
Thrust clearanceSTD 0.030—0.260 mm (0.0012—0.0102 in)
Limit 0.35 mm (0.0138 in)
Cam lobe heightIntakeSTD 31.994—32.094 mm (1.2596—1.2635 in)
Limit 31.844 mm (1.2537 in)
ExhaustSTD 32.624—32.724 mm (1.2844—1.2883 in)
Limit 32.474 mm (1.2785 in)
Camshaft journal O.D. RHFront
LHRear 31.935—31.950 mm (1.2573—1.2579 in)
Center Center 37.435—37.450 mm (1.4738—1.4744 in)
Rear Front 37.935—37.950 mm (1.4935—1.4941 in)
Camshaft journal hole
I.D.RHFront
LHRear 32.005—32.025 mm (1.2600—1.2608 in)
Center Center 37.505—37.525 mm (1.4766—1.4774 in)
Rear Front 38.005—38.025 mm (1.4963—1.4970 in)
Oil clearanceSTD 0.055—0.090 mm (0.0022—0.0035 in)
Limit 0.10 mm (0.0039 in)
Cylinder
headSurface warpage limit 0.05 mm (0.0020 in)
Surface grinding limit 0.1 mm (0.004 in)
Standard height 98.3 mm (3.870 in)
Valve setRefacing angle 90°
Contacting widthIntakeSTD 0.7 mm (0.028 in)
Limit 1.4 mm (0.055 in)
ExhaustSTD 1.4 mm (0.055 in)
Limit 1.8 mm (0.071 in)
Valve
guideInner diameter 6.000—6.012 mm (0.2362—0.2367 in)
Protrusion above head 17.5—18.0 mm (0.689—0.709 in)
ValveHead edge thicknessIntakeSTD 1.0 mm (0.039 in)
Limit 0.8 mm (0.031 in)
ExhaustSTD 1.2 mm (0.047 in)
Limit 0.8 mm (0.031 in)
Stem diameterIntake 5.950—5.965 mm (0.2343—0.2348 in)
Exhaust 5.945—5.960 mm (0.2341—0.2346 in)
Stem oil clearanceSTDIntake 0.035—0.062 mm (0.0014—0.0024 in)
Exhaust 0.040—0.067 mm (0.0016—0.0026 in)
Limit—0.15 mm (0.0059 in)
Overall lengthIntake 101.0 mm (3.976 in)
Exhaust 101.2 mm (3.984 in)
STD: Standard I.D.: Inner Diameter O.D.: Outer Diameter
3
2-3SPECIFICATIONS AND SERVICE DATA
1. Engine

Valve springFree length 44.05 mm (1.7342 in)
Squareness 2.5°, 1.9 mm (0.075 in)
Tension/spring height174.6—200.1 N
(17.8—20.4 kg, 39.2—45.0 lb)/36.0 mm (1.417 in)
405.0—458.0 N
(41.3—46.7 kg, 91.1—103.0 lb)/28.2 mm (1.110 in)
Cylinder
blockSurface warpage limit (mating with cylinder head) 0.05 mm (0.0020 in)
Surface grinding limit 0.1 mm (0.004 in)
Cylinder bore STDA 96.905—96.915 mm (3.8151—3.8155 in)
B 96.895—96.905 mm (3.8148—3.8151 in)
TaperSTD 0.015 mm (0.0006 in)
Limit 0.050 mm (0.0020 in)
Out-of-roundnessSTD 0.010 mm (0.0004 in)
Limit 0.050 mm (0.0020 in)
Piston clearanceSTD 0.010—0.030 mm (0.0004—0.0012 in)
Limit 0.050 mm (0.0020 in)
Enlarging (boring) limit 0.5 mm (0.020 in)
Piston Outer diameterSTDA 96.885—96.895 mm (3.8144—3.8148 in)
B 96.875—96.885 mm (3.8140—3.8144 in)
0.25 mm (0.0098 in)
OS97.115—97.145 mm (3.8234—3.8246 in)
0.50 mm (0.0197 in)
OS97.365—97.395 mm (3.8333—3.8344 in)
Piston pinStandard clearance between piston
pin and hole in pistonSTD 0.004—0.010 mm (0.0002—0.0004 in)
Limit 0.020 mm (0.0008 in)
Degree of fitPiston pin must be fitted into position with thumb at 20°C
(68°F).
Piston ringPiston ring gapTop ringSTD 0.20—0.35 mm (0.0079—0.0138 in)
Limit 1.0 mm (0.039 in)
Second
ringSTD 0.20—0.50 mm (0.0079—0.0197 in)
Limit 1.0 mm (0.039 in)
Oil ringSTD 0.20—0.70 mm (0.0079—0.0276 in)
Limit 1.5 mm (0.059 in)
Clearance between piston
ring and piston ring grooveTop ringSTD 0.040—0.080mm (0.0016—0.0031 in)
Limit 0.15 mm (0.0059 in)
Second
ringSTD 0.030—0.070 mm (0.0012—0.0028 in)
Limit 0.15 mm (0.0059 in)
Connecting
rodBend twist per 100 mm (3.94 in) in
lengthLimit 0.10 mm (0.0039 in)
Side clearanceSTD 0.070—0.330 mm (0.0028—0.0130 in)
Limit 0.4 mm (0.016 in)
Connecting
rod bearingOil clearanceSTD 0.015—0.045 mm (0.0006—0.0018 in)
Limit 0.05 mm (0.0020 in)
Thickness at center portionSTD 1.492—1.501 mm (0.0587—0.0591 in)
0.03 mm
(0.0012 in)
US1.510—1.513 mm (0.0594—0.0596 in)
0.05 mm
(0.0020 in)
US1.520—1.523 mm (0.0598—0.0600 in)
0.25 mm
(0.0098 in)
US1.620—1.623 mm (0.0638—0.0639 in)
Connecting
rod bushingClearance between piston pin and
bushingSTD 0—0.022 mm (0—0.0009 in)
Limit 0.030 mm (0.0012 in)
STD: Standard OS: Oversize US: Undersize
4
2-3SPECIFICATIONS AND SERVICE DATA
1. Engine

CrankshaftBend limit 0.035 mm (0.0014 in)
Crank pin and crank journalOut-of-roundness 0.030 mm (0.0012 in) or less
Grinding limit 0.25 mm (0.0098 in)
Crank pin outer diameterSTD 51.984—52.000 mm (2.0466—2.0472 in)
0.03 mm
(0.0012 in)
US51.954—51.970 mm (2.0454—2.0461 in)
0.05 mm
(0.0020 in)
US51.934—51.950 mm (2.0446—2.0453 in)
0.25 mm
(0.0098 in)
US51.734—51.750 mm (2.0368—2.0374 in)
Crank journal outer diameter#1, #5STD 59.992—60.008 mm (2.3619—2.3625 in)
0.03 mm
(0.0012 in)
US59.962—59.978 mm (2.3607—2.3613 in)
0.05 mm
(0.0020 in)
US59.934—59.950 mm (2.3596—2.3602 in)
0.25 mm
(0.0098 in)
US59.742—59.758 mm (2.3520—2.3527 in)
#2, #3, #4STD 59.992—60.008 mm (2.3619—2.3625 in)
0.03 mm
(0.0012 in)
US59.954—59.970 mm (2.3604—2.3610 in)
0.05 mm
(0.0020 in)
US59.934—59.950 mm (2.3596—2.3602 in)
0.25 mm
(0.0098 in)
US59.734—59.750 mm (2.3517—2.3524 in)
Thrust clearanceSTD 0.030—0.115 mm (0.0012—0.0045 in)
Limit 0.25 mm (0.0098 in)
Oil clearance#1, #5 STD 0.003—0.030 mm (0.0001—0.0012 in)
#2, #3, #4 STD 0.010—0.033 mm (0.0004—0.0013 in)
#1, #3, #5 Limit 0.040 mm (0.0016 in)
#2, #4 Limit 0.035 mm (0.0014 in)
Crankshaft
bearingCrankshaft bearing thickness#1, #5STD 1.998—2.011 mm (0.0787—0.0792 in)
0.03 mm
(0.0012 in)
US2.017—2.020 mm (0.0794—0.0795 in)
0.05 mm
(0.0020 in)
US2.027—2.030 mm (0.0798—0.0799 in)
0.25 mm
(0.0098 in)
US2.127—2.130 mm (0.0837—0.0839 in)
#2, #3, #4STD 2.000—2.013 mm (0.0787—0.0793 in)
0.03 mm
(0.0012 in)
US2.019—2.022 mm (0.0795—0.0796 in)
0.05 mm
(0.0020 in)
US2.029—2.032 mm (0.0799—0.0800 in)
0.25 mm
(0.0098 in)
US2.129—2.132 mm (0.0838—0.0839 in)
STD: Standard US: Undersize
5
2-3SPECIFICATIONS AND SERVICE DATA
1. Engine

G2M0106
1. General Precautions
1) Before disassembling engine, place it on ST3.
ST1 498457000 ENGINE STAND ADAPTER RH
ST2 498457100 ENGINE STAND ADAPTER LH
ST3 499817000 ENGINE STAND
2) All parts should be thoroughly cleaned, paying special
attention to the engine oil passages, pistons and bearings.
3) Rotating parts and sliding parts such as piston, bearing
and gear should be coated with oil prior to assembly.
4) Be careful not to let oil, grease or coolant contact the
timing belt, clutch disc and flywheel.
5) All removed parts, if to be reused, should be reinstalled
in the original positions and directions.
6) Gaskets and lock washers must be replaced with new
ones. Liquid gasket should be used where specified to
prevent leakage.
7) Bolts, nuts and washers should be replaced with new
ones as required.
8) Even if necessary inspections have been made in
advance, proceed with assembly work while making
rechecks.
2. Hydraulic Lash Adjuster
A: INSPECTION
1) Disconnect blow-by hose from rocker cover.
2) Remove spark plug cap.
B2M0413A
3) Remove left and right rocker covers.
CAUTION:
Before removing left rocker cover, disconnect battery
cables and generator cable.
11
2-3SERVICE PROCEDURE
1. General Precautions - 2. Hydraulic Lash Adjuster

G2M0106
1. General Precautions
1) Before disassembling engine, place it on ST3.
ST1 498457000 ENGINE STAND ADAPTER RH
ST2 498457100 ENGINE STAND ADAPTER LH
ST3 499817000 ENGINE STAND
2) All parts should be thoroughly cleaned, paying special
attention to the engine oil passages, pistons and bearings.
3) Rotating parts and sliding parts such as piston, bearing
and gear should be coated with oil prior to assembly.
4) Be careful not to let oil, grease or coolant contact the
timing belt, clutch disc and flywheel.
5) All removed parts, if to be reused, should be reinstalled
in the original positions and directions.
6) Gaskets and lock washers must be replaced with new
ones. Liquid gasket should be used where specified to
prevent leakage.
7) Bolts, nuts and washers should be replaced with new
ones as required.
8) Even if necessary inspections have been made in
advance, proceed with assembly work while making
rechecks.
2. Hydraulic Lash Adjuster
A: INSPECTION
1) Disconnect blow-by hose from rocker cover.
2) Remove spark plug cap.
B2M0413A
3) Remove left and right rocker covers.
CAUTION:
Before removing left rocker cover, disconnect battery
cables and generator cable.
11
2-3SERVICE PROCEDURE
1. General Precautions - 2. Hydraulic Lash Adjuster

G2M0198
4) Manually push valve rocker (at lash adjuster location) to
check that there is no air in it.
NOTE:
When air is in lash adjuster, valve rocker moves when
pushed with fingers.
G2M0199
5) If air is in lash adjuster, remove valve rocker assembly
from engine and bleed air completely.
B2M0382A
B: AIR BLEEDING
1) Remove valve rocker assembly.
(1) Remove bolts

1through
4in numerical
sequence.
CAUTION:
Leave two or three threads of bolt

1engaged to retain
valve rocker assembly.
(2) Equally loosen bolts

5through
8all the way,
being careful that knock pin is not gouged.
2) Manually remove lash adjusters where air is trapped.
CAUTION:
If lash adjuster is difficult to remove manually, use pli-
ers. Be careful not to scratch lash adjuster.
12
2-3SERVICE PROCEDURE
2. Hydraulic Lash Adjuster

G2M0131
3) Bleed air from hydraulic lash adjuster as described
below:
(1) While dipping hydraulic lash adjuster in engine oil,
as shown in Figure, push check ball in usinga2mm
(0.08 in) diameter round bar.
(2) With check ball pushed in, manually move plunger
up and down at one second intervals until air bubbles
disappear.
(3) After air bubbles disappear, remove round bar and
quickly push plunger in to ensure it is locked. If plunger
does not lock properly, replace hydraulic lash adjuster.
CAUTION:
Leave hydraulic lash adjuster (after air is bled) in
engine oil until it is ready for installation.
G2M0200
4) Using ST;
(1) Insert lash adjuster into ST, and fill ST with engine
oil. Usinga2mm(0.08 in) diameter rod, push check
ball in.
ST 499597000 OIL SEAL GUIDE
(2) With check ball pushed in, push plunger at an inter-
val of one second.
(3) Move plunger up and down until air bubbles are no
longer emitted from lash adjuster.
NOTE:
Hold hydraulic lash adjusters vertically during air bleeding.
5) Remove the rod. Push plunger to ensure that air is
completely bled out.
CAUTION:
If plunger does not properly lock (when pushed),
replace lash adjuster with a new one.
13
2-3SERVICE PROCEDURE
2. Hydraulic Lash Adjuster