1999 SUBARU LEGACY sensor

3) Camshaft oil seal installation
Apply grease to new oil seal lips and press onto
front end of camshaft by using ST1 and ST2.
CAUTION:
Use a new oil seal.
ST1 499587100 OIL SEAL INSTALLER
ST2 499597000 OIL SEAL GUIDE
G2M0754
4) Rocker cover installation
(1) Install gasket on rocker cover.
Install peripheral gasket and ignition coil gasket.
(2) Apply fluid packing to four front open edges
of peripheral gasket.
Fluid packing:
THREE BOND 1215 or equivalent
S2M0300A
(3) Install rocker cover on cylinder head.
Ensure gasket is properly positioned during
installation.
5) Install ignition coil.
6) Install cam angle sensor.
7) Similarly, install parts on right-hand side.
2. RELATED PARTS
Install timing belt, camshaft sprockets and related
parts.

35
[W3C2]2-3bSERVICE PROCEDURE
3. Camshaft

4. Cylinder Head
A: REMOVAL
1. RELATED PARTS
1) Remove V-belt.
2) Remove generator, air conditioner compressor
and brackets.
3) Remove hoses and tubes from cylinder block.
4) Disconnect each connector and/or remove con-
nector bracket.5) Remove intake manifold assembly and gasket.
6) Remove camshaft position sensor.
7) Remove timing belt, camshaft sprockets and
related parts.

8) Remove rocker cover, camshafts and related
parts.

2. CYLINDER HEAD
S2M0421A
(1) Bolt
(2) Cylinder head bolt(3) Cylinder head
(4) Cylinder head gasket
1) Remove oil level gauge guide attaching bolt
(LH side only).
36
2-3b[W4A1]SERVICE PROCEDURE
4. Cylinder Head

3) Install camshaft sprockets, timing belt and related parts.

S2M0303
4) Install intake manifold.
CAUTION:
Use new gaskets.
G2M0774
5) Install camshaft position sensor. Use dry com-
pressed air to remove foreign particles before
installing sensor.
6) Connect each connector and/or install connec-
tor bracket.
7) Connect hoses and tubes to cylinder block.
8) Install brackets, generator and air conditioner
compressor.
9) Install V-belt.
47
[W4E2]2-3bSERVICE PROCEDURE
4. Cylinder Head

1. Oil Pump
A: REMOVAL
1) Disconnect battery ground cable.
G6M0095
2) Lift-up the vehicle.
3) Remove under cover.
B2M0014
4) Drain coolant.
B2M0015A
5) Remove radiator.
S2M0033
6) Lower the vehicle.
7) Remove crankshaft position sensor.
B2M1252A
8) Remove camshaft position sensor.
G2M0417
9) Remove V-belts.
G2M0286
10) Remove rear side V-belt tensioner.
S2M0113
6
2-4[W1A0]SERVICE PROCEDURE
1. Oil Pump

5) Disconnect front oxygen sensor connector.
B2M1979A
S2M0127A
6) Disconnect rear oxygen sensor connector.
(2500 cc California spec. vehicles)
S2M0128
7) Remove pitching stopper.
G2M0295
8) Remove radiator upper bracket.
B2M0320
9) Support engine with a lifting device and wire
ropes.
B2M0053
10) Lift-up the vehicle.
CAUTION:
At this time, raise up wire ropes.
11) Remove under cover.
B2M0014
11
[W2A0]2-4SERVICE PROCEDURE
2. Oil Pan and Oil Strainer

8) Connect connector to rear oxygen sensor.
(Except 2500 cc California spec. vehicles)
B2M0312
9) Install under cover.
B2M0014
10) Lower the vehicle.
CAUTION:
At this time, lower lifting device and release
steel cables.
11) Remove lifting device and steel cables.
B2M0053
12) Connect connector to front oxygen sensor.
B2M1979A
S2M0127A
13) Connect connector to rear oxygen sensor.
(2500 cc California spec. vehicles)
S2M0128
14) Install pitching stopper.
Tightening torque:
T1: 49
±5 N´m (5.0±0.5 kg-m, 36.2±3.6 ft-lb)
T2: 57
±10 N´m (5.8±1.0 kg-m, 42±7 ft-lb)
G2M0302
15
[W2C0]2-4SERVICE PROCEDURE
2. Oil Pan and Oil Strainer

5) Disconnect radiator outlet hose (A) and heater
by-pass hose (B) from water pump.
H2M2515A
6) Disconnect connectors from radiator main fan
(A) and sub fan (B) motors.
B2M2035A
7) Lower the vehicles.
8) Remove radiator main fan [W6A0].> and sub fan motor assembly [W7A0].>.
B2M2036
9) Remove V-belts.

B2M2308
10) Remove timing belt.

B2M2037
11) Remove automatic belt tension adjuster.
H2M2375
12) Remove belt idler No. 2.
H2M2518
13) Remove camshaft position sensor.

B2M2038
9
[W2A1]2-5SERVICE PROCEDURE
2. Water Pump

13) Remove belt idler No. 2.
H2M2518
14) Remove camshaft position sensor.

S2M0184
15) Remove left-hand camshaft sprockets by
using ST.
ST 499207300 CAMSHAFT SPROCKET
WRENCH
S2M0019A
16) Remove tensioner bracket.
S2M0020
17) Remove left-hand belt cover No. 2.
S2M0021
18) Remove water pump.
H2M2516
19) Installation is in the reverse order of removal.
CAUTION:
IReplace gasket with a new one.
IWhen installing water pump, tighten bolts in
two stages in alphabetical sequence as shown
in figure.
Tightening torque:
10+4/þ0N´m (1.0+0.4/þ0kg-m, 7.2+2.9/þ0ft-lb)
S2M0760A
B: INSPECTION
1) Check water pump bearing for smooth rotation.
2) Check water pump pulley for abnormalities.
12
2-5[W2B0]SERVICE PROCEDURE
2. Water Pump