1997 SUBARU LEGACY service

B2M0966
B: INSTALLATION
1) Install the bolt fixing vent control solenoid valve on
bracket.
B2M0965A
2) Install two vacuum hoses to vent control solenoid valve.
H2M1469
3) Install the bolt fixing bracket on the body.
Tightening torque:
25±7 N⋅m (2.5±0.7 kg-m, 18.1±5.1 ft-lb)
B2M0964
4) Connect connector to vent control solenoid valve.
5) Connect two hoses to air filter.
6) Install canister.
7) Let down the vehicle.
G6M0095
8) Connect battery ground cable.
14
2-1SERVICE PROCEDURE
11. Vent Control Solenoid Valve (2200 cc AWD Model)

G6M0095
12. Fuel Level Sensor (2200 cc AWD
Model)
A: REMOVAL
1) Disconnect battery ground cable.
B2M0954A
2) Release fuel pressure.
3) Disconnect fuel delivery hose
1, return hose2and jet
pump hose
3.
B2M0955
4) Remove nuts which install fuel pump assembly onto
fuel tank.
B2M0956
5) Take off fuel pump assembly from fuel tank.
H2M1459
6) Disconnect connector from fuel pump.
15
2-1SERVICE PROCEDURE
12. Fuel Level Sensor (2200 cc AWD Model)

H2M1460
7) Remove two screws fixing bracket on fuel pump assem-
bly.
H2M1461A
8) Remove one screw fixing fuel level sensor on bracket.
9) Remove fuel level sensor from fuel pump assembly.
B2M0955A
B: INSTALLATION
CAUTION:
Leave fuel filler cap open when tightening nuts, to pre-
vent fuel from flowing out through fuel delivery and
return pipes. Close fuel filler cap after tightening nuts.
Installation is in the reverse order of removal. Do the fol-
lowing:
(1) Always use new gaskets.
(2) Ensure sealing portion is free from fuel or foreign
particles before installation.
(3) Tighten nuts in numerical sequence shown in Fig-
ure to specified torque.
Tightening torque:
4.4±1.5 N⋅m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M0968
13. Air Filter (2200 cc AWD Model)
A: REMOVAL AND INSTALLATION
1) Remove canister.
2) Remove two hoses from air filter.
3) Remove flange nut from bracket.
4) Installation is in the reverse order of removal.
16
2-1SERVICE PROCEDURE
12. Fuel Level Sensor (2200 cc AWD Model) - 13. Air Filter (2200 cc AWD Model)

H2M1460
7) Remove two screws fixing bracket on fuel pump assem-
bly.
H2M1461A
8) Remove one screw fixing fuel level sensor on bracket.
9) Remove fuel level sensor from fuel pump assembly.
B2M0955A
B: INSTALLATION
CAUTION:
Leave fuel filler cap open when tightening nuts, to pre-
vent fuel from flowing out through fuel delivery and
return pipes. Close fuel filler cap after tightening nuts.
Installation is in the reverse order of removal. Do the fol-
lowing:
(1) Always use new gaskets.
(2) Ensure sealing portion is free from fuel or foreign
particles before installation.
(3) Tighten nuts in numerical sequence shown in Fig-
ure to specified torque.
Tightening torque:
4.4±1.5 N⋅m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M0968
13. Air Filter (2200 cc AWD Model)
A: REMOVAL AND INSTALLATION
1) Remove canister.
2) Remove two hoses from air filter.
3) Remove flange nut from bracket.
4) Installation is in the reverse order of removal.
16
2-1SERVICE PROCEDURE
12. Fuel Level Sensor (2200 cc AWD Model) - 13. Air Filter (2200 cc AWD Model)

1. Foreword
This chapter describes major inspection and service pro-
cedures for the engine mounted on the body. For proce-
dures not found in this chapter, refer to the service proce-
dure section in the applicable chapter.
2. Ignition Timing
A: MEASUREMENT
1. 2200 cc MODEL
1) Warm-up the engine.
G2M0094
2) To check the ignition timing, connect a timing light to #1
cylinder spark plug cord, and illuminate the timing mark
with the timing light.
3) Start the engine at idle speed and check the ignition
timing.
If the timing is not correct, check the ignition control sys-
tem.
Ignition timing [BTDC/rpm]:
14°±8°/700 (MT)
20°±8°/700 (AT)
2. 2500 cc MODEL
CAUTION:
After warming-up, engine becomes very hot. Be care-
ful not to burn yourself during measurement.
1) Warm-up the engine.
B2M0750A
2) To check the ignition timing, connect a timing light to #1
cylinder spark plug cord, and illuminate the timing mark
with the timing light.
3) Start the engine at idle speed and check the ignition
timing.
If the timing is not correct, check the ignition control sys-
tem.
Ignition timing [BTDC/rpm]:
15°±8°/700
2
2-2
1. Foreword - 2. Ignition Timing

1. Foreword
This chapter describes major inspection and service pro-
cedures for the engine mounted on the body. For proce-
dures not found in this chapter, refer to the service proce-
dure section in the applicable chapter.
2. Ignition Timing
A: MEASUREMENT
1. 2200 cc MODEL
1) Warm-up the engine.
G2M0094
2) To check the ignition timing, connect a timing light to #1
cylinder spark plug cord, and illuminate the timing mark
with the timing light.
3) Start the engine at idle speed and check the ignition
timing.
If the timing is not correct, check the ignition control sys-
tem.
Ignition timing [BTDC/rpm]:
14°±8°/700 (MT)
20°±8°/700 (AT)
2. 2500 cc MODEL
CAUTION:
After warming-up, engine becomes very hot. Be care-
ful not to burn yourself during measurement.
1) Warm-up the engine.
B2M0750A
2) To check the ignition timing, connect a timing light to #1
cylinder spark plug cord, and illuminate the timing mark
with the timing light.
3) Start the engine at idle speed and check the ignition
timing.
If the timing is not correct, check the ignition control sys-
tem.
Ignition timing [BTDC/rpm]:
15°±8°/700
2
2-2
1. Foreword - 2. Ignition Timing

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 4° BTDC
Closing 52° ABDC
Exhaust valve timingOpening 48° BBDC
Closing 12° ATDC
Valve clearanceIntake mm (in) 0.20±0.02 (0.0079±0.0008)
Exhaust mm (in) 0.25±0.02 (0.0098±0.0008)
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 32.244—32.344 mm (1.2694—1.2734 in)
Limit 32.094 mm (1.2635 in)
ExhaustSTD 31.964—32.064 mm (1.2584—1.2624 in)
Limit 31.814 mm (1.2525 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