1999 SUBARU LEGACY engine oil

1. General Precautions
A: 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
B2M2582A
2) All parts should be thoroughly cleaned, paying
special attention to the engine oil passages, pis-
tons 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 con-
tact 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) All removed parts, if to be reused, should be
reinstalled in the original positions and directions.
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.
12
2-3a[W1A0]SERVICE PROCEDURE
1. General Precautions

4. CRANKSHAFT PULLEY AND BELT COVER
B2M2583B
(1) Front belt cover
(2) Belt cover (LH)
(3) Crankshaft pulley
(4) Crankshaft pulley bolt(5) Rear side V-belt (With A/C
model)
(6) Front side V-beltTightening torque: N´m (kg-m, ft-lb)
T1:
5±1 (0.5±0.1, 3.6±0.7)
T2:127+10/þ5(13.0+1.0/þ0.5,
94+7.2/þ3.6)
1) Install front belt cover.
2) Install belt cover (LH).
B2M2587A
3) Install crankshaft pulley.
4) Install pulley bolt.
To lock crankshaft, use ST.
ST 499977000 CRANKSHAFT PULLEY
WRENCH
(1) Clean the crankshaft pulley thread using an
air gun.
(2) Apply engine oil to the crankshaft pulley bolt
seat and thread.
(3) Tighten the bolts temporarily with tightening
torque of 44 N´m (4.5 kg-m, 33 ft-lb).
(4) Tighten the crankshaft pulley bolts.
Tightening torque:
127
±5 N´m (13.0±0.5 kg-m, 94.0±3.6 ft-lb)
B2M2586A
5) Confirm that the tightening angle of the crank-
shaft pulley bolt is 45 degrees or more. If not, con-
duct the following procedures (1) through (4).
25
[W2C4]2-3aSERVICE PROCEDURE
2. Timing Belt

C: INSTALLATION
1. CAMSHAFT (LH)
B2M2610B
(1) Camshaft (LH)
(2) Camshaft cap(3) Plug
(4) Oil seal(5) Oil level gauge guide
(6) Bolt
1) Apply a coat of engine oil to camshaft journals
and install camshaft (LH).
2) Install camshaft cap.
(1) Apply liquid gasket on the around of cam-
shaft cap.
Liquid gasket:
THREE BOND 1280B (Part No.
0029431130)
B2M2619
(2) Temporarily tighten bolts (g) through (j) in
alphabetical sequence.
B2M2612A
(3) Install valve rocker assembly.

B2M2606
36
2-3a[W4C1]SERVICE PROCEDURE
4. Camshaft

2. CAMSHAFT (RH)
B2M2614A
(1) Camshaft support (RH)
(2) O-ring(3) Camshaft (RH)
(4) Oil seal(5) Plug
1) Apply a coat of engine oil to camshaft journals
and install camshaft (RH).
2) Install camshaft cap.
(1) Apply liquid gasket on the around of cam-
shaft cap.
Liquid gasket:
THREE BOND 1280B (Part No.
0029431130)
B2M2619
(2) Temporarily tighten bolts (g) through (j) in
alphabetical sequence.
B2M2612A
(3) Install valve rocker assembly.

B2M2615
38
2-3a[W4C2]SERVICE PROCEDURE
4. Camshaft

5. Cylinder Head
A: REMOVAL
1. RELATED PARTS
1) Release fuel pressure.
2) Drain engine coolant.
3) Remove V-belt(s).
4) Remove generator and bracket.
5) Remove A/C compressor and bracket. (With
A/C model)6) Disconnect spark plug cords.
7) Remove connector bracket attaching bolt.
8) Remove camshaft position sensor and cam-
shaft position sensor support.
9) Disconnect oil pressure switch connector.
10) Disconnect blow-by hose.
11) Remove intake manifold. [W4A0].>
2. CYLINDER HEAD
B2M2627A
(1) Rocker cover
(2) Cylinder head bolt(3) Cylinder head
(4) Cylinder head gasket
1) Remove timing belt, camshaft sprocket and
related parts.

2) Remove oil level gauge guide attaching bolt
(left hand only) and oil level gauge guide.
3) Remove rocker cover.
40
2-3a[W5A1]SERVICE PROCEDURE
5. Cylinder Head

(5) Put new valve guide, coated with sufficient
oil, in cylinder, and insert ST1 into valve guide.
Press in until the valve guide upper end is flush
with the upper surface of ST2.
ST1 499767400 VALVE GUIDE REMOVER
Intake side:
ST2 499767700 VALVE GUIDE ADJUSTER
Exhaust side:
ST2 499767800 VALVE GUIDE ADJUSTER
B2M2632A
(6) Check the valve guide protrusion.
Valve guide protrusion: L
Intake
20.0 Ð 20.5 mm (0.787 Ð 0.807 in)
Exhaust
16.5 Ð 17.0 mm (0.650 Ð 0.669 in)
B2M0077A
(7) Ream the inside of valve guide with ST.
Gently rotate the reamer clockwise while press-
ing it lightly into valve guide, and return it also
rotating clockwise. After reaming, clean valve
guide to remove chips.
CAUTION:
IApply engine oil to the reamer when ream-
ing.
IIf the inner surface of the valve guide is torn,
the edge of the reamer should be slightly
ground with an oil stone.
IIf the inner surface of the valve guide
becomes lustrous and the reamer does not
chips, use a new reamer or remedy the reamer.
ST 499767400 VALVE GUIDE REAMER
B2M0078
(8) Recheck the contact condition between
valve and valve seat after replacing valve guide.
45
[W5C3]2-3aSERVICE PROCEDURE
5. Cylinder Head

6. INTAKE AND EXHAUST VALVE OIL
SEAL
Replace oil seal with new one, if lip is damaged or
spring out of place, or when the surfaces of intake
valve and valve seat are reconditioned or intake
valve guide is replaced.
1) Place cylinder head on ST1.
2) Press-fit oil seal to the specified dimension indi-
cated in the figure using ST2.
CAUTION:
IApply engine oil to oil seal before press-fit-
ting.
IWhen press-fitting oil seal, do not use ham-
mer or strike in.
IDifferentiate between intake valve oil seal
and exhaust valve oil seal by noting their dif-
ference in color.
ST1 498267800 CYLINDER HEAD TABLE
ST2 498857100 VALVE OIL SEAL GUIDE
Color of rubber part:
Intake [Black]
Exhaust [Brown]
Color of spring part:
Intake [Silver]
Exhaust [Silver]
B2M2633A
47
[W5C6]2-3aSERVICE PROCEDURE
5. Cylinder Head

D: ASSEMBLY
B2M2629B
(1) Valve
(2) Valve guide
(3) Valve spirng seat
(4) Oil seal
(5) Valve spring(6) Retainer
(7) Retainer key
(8) Spark plug gasket
(9) Camshaft
(10) Oil seal(11) Plug
(12) Camshaft cap
(13) Valve rocker ASSY
1) Installation of valve spring and valve
(1) Place cylinder head on ST.
ST 498267400 CYLINDER HEAD TABLE
(2) Coat stem of each valve with engine oil and
insert valve into valve guide.
CAUTION:
When inserting valve into valve guide, use spe-
cial care not to damage the oil seal lip.
(3) Install valve spring and retainer.
CAUTION:
Be sure to install the valve springs with their
close-coiled end facing the seat on the cylinder
head.(4) Set ST on valve spring.
ST 499718000 VALVE SPRING REMOVER
B2M2630A
48
2-3a[W5D0]SERVICE PROCEDURE
5. Cylinder Head