1997 SUBARU LEGACY remove

B: DISASSEMBLY
B2M0121A
1) Remove rocker cover.
2) Remove valve rocker assembly.

3) Remove camshaft and support.

4) Place cylinder head on ST.
ST 498267200 CYLINDER HEAD TABLE
B2M0386A
5) Set ST on valve spring. Compress valve spring and
remove the valve spring retainer key. Remove each valve
and valve spring.
ST 499718000 VALVE SPRING REMOVER
CAUTION:
Mark each valve to prevent confusion.
Use extreme care not to damage the lips of the
intake valve oil seals and exhaust valve oil seals.
6) Removal of plug (cylinder head LH)
CAUTION:
Do not remove plug unless necessary.
40
2-3SERVICE PROCEDURE
6. Cylinder Head

B2M0387A
B2M0076A
3. VALVE GUIDE
1) Check the clearance between valve guide and stem.
The clearance can be checked by measuring the outside
diameter of valve stem and the inside diameter of valve
guide with outside and inside micrometers respectively.
Clearance between the valve guide and valve stem:
Standard
Intake
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)
Valve guide inner diameter:
6.000—6.012 mm (0.2362—0.2367 in)
Valve stem outer diameters:
Intake
5.950—5.965 mm (0.2343—0.2348 in)
Exhaust
5.945—5.960 mm (0.2341—0.2346 in)
G2M0150
2) If the clearance between valve guide and stem exceeds
the specification, replace guide as follows:
(1) Place cylinder head on ST1 with the combustion
chamber upward so that valve guides enter the holes
in ST1.
(2) Insert ST2 into valve guide and press it down to
remove valve guide.
ST1 498267200 CYLINDER HEAD TABLE
ST2 499767200 VALVE GUIDE REMOVER
G2M0151
(3) Turn cylinder head upside down and place ST as
shown in the Figure.
ST 499767000 VALVE GUIDE ADJUSTER
B2M0388A
(4) Before installing new oversize valve guide, make
sure that neither scratches nor damages exist on the
inside surface of the valve guide holes in 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 sur-
face of ST2.
ST1 499767200 VALVE GUIDE REMOVER
ST2 499767000 VALVE GUIDE ADJUSTER
42
2-3SERVICE PROCEDURE
6. Cylinder Head

B2M0077A
(6) Check the valve guide protrusion.
Valve guide protrusion: L
17.5—18.0 mm (0.689—0.709 in)
B2M0078
(7) Ream the inside of valve guide with ST. Gently
rotate the reamer clockwise while pressing it lightly into
valve guide, and return it also rotating clockwise. After
reaming, clean valve guide to remove chips.
ST 499767400 VALVE GUIDE REAMER
CAUTION:
Apply engine oil to the reamer when reaming.
If the inner surface of the valve guide is torn, the
edge of the reamer should be slightly ground with an
oil stone.
If the inner surface of the valve guide becomes lus-
trous and the reamer does not chips, use a new reamer
or remedy the reamer.
(8) Recheck the contact condition between valve and
valve seat after replacing valve guide.
43
2-3SERVICE PROCEDURE
6. Cylinder Head

B2M0386A
(3) Install valve spring and retainer.
CAUTION:
Be sure to install the valve springs with their painted
facing towards the valve spring retainer.
(4) Set ST on valve spring.
ST 499718000 VALVE SPRING REMOVER
(5) Compress valve spring and fit valve spring retainer
key.
B2M1210A
(6) After installing, tap valve spring retainers lightly
with wooden hammer for better seating.
3) Install camshaft and support.

4) Install valve rocker assembly.

5) Install rocker cover.
47
2-3SERVICE PROCEDURE
6. Cylinder Head

(7) Further tighten all bolts by 80 to 90°in numerical
sequence.
CAUTION:
Ensure that the total“re-tightening angle”[steps (6)
and (7) above] do not exceed 180°.
3) Install oil level gauge guide attaching bolt (left side
only).
4) Install timing belt, camshaft sprocket and related parts.

2. INTAKE MANIFOLD
CAUTION:
Use dry compressed air to remove foreign particles
before installing each solenoid valve and sensor.
1) Install engine coolant pipe.
2) Install intake manifold.
3) Remove ENGINE STAND (ST).
49
2-3SERVICE PROCEDURE
6. Cylinder Head

7. Cylinder Block
A: REMOVAL
1. RELATED PARTS
1) Remove timing belt, camshaft sprocket and related
parts.

2) Remove intake manifold and cylinder head.

2. OIL PUMP AND ENGINE COOLANT PUMP
B2M0124A
50
2-3SERVICE PROCEDURE
7. Cylinder Block

1) Remove housing cover.
G2M0161
2) Remove flywheel or drive plate.
To lock crankshaft use ST.
ST 498497100 CRANKSHAFT STOPPER
3) Remove oil separator cover.
4) Remove engine coolant pipe.
5) Remove engine coolant pump.
G2M0162
6) Remove oil pump from cylinder block.
Use a flat-bladed screwdriver as shown in Figure when
removing oil pump.
CAUTION:
Be careful not to scratch the mating surface of cylin-
der block and oil pump.
51
2-3SERVICE PROCEDURE
7. Cylinder Block

G2M0163
7) Removal of oil pan
(1) Turn cylinder block with #2 and #4 piston sides
facing upward.
(2) Remove bolts which secure oil pan to cylinder
block.
(3) Insert a oil pan cutter blade between cylinder block-
to-oil pan clearance and remove oil pan.
CAUTION:
Do not use a screwdriver or similar tool in place of oil-
pan cutter.
8) Remove oil strainer stay.
9) Remove oil strainer.
10) Remove baffle plate.
11) Remove oil filter.
B: DISASSEMBLY
1. PISTON PIN AND CYLINDER BLOCK
CONNECTING BOLT
G2M0164
52
2-3SERVICE PROCEDURE
7. Cylinder Block