Valve Rocker Assembly - Subaru Legacy 2002 Service Manual

Mechanical

18. Valve Rocker Assembly

A: REMOVAL
S173094A18
1) Remove V-belt. <Ref. to ME-45, REMOVAL,
V-belt.>
2) Remove crankshaft pulley. <Ref. to ME-47,
REMOVAL, Crankshaft Pulley.>
3) Remove belt cover.
REMOVAL, Belt Cover.>
4) Remove timing belt assembly. <Ref. to ME-50,
REMOVAL, Timing Belt Assembly.>
5) Remove camshaft sprocket. <Ref. to ME-55,
REMOVAL, Camshaft Sprocket.>
6) Disconnect PCV hose and remove rocker
cover.
7) Removal of valve rocker assembly
(1) Remove bolts (a) through (h) in alphabetical
sequence.
CAUTION:
Leave two or three threads of bolts (g and h)
engaged to retain valve rocker assembly.
(2) Remove valve rocker assembly.
B: INSTALLATION
1) Installation of valve rocker assembly
(1) Temporarily tighten bolts (a) through (d)
equally as shown in figure.
CAUTION:
Do not allow valve rocker assembly to gouge
knock pins.
VALVE ROCKER ASSEMBLY
S173094
<Ref. to ME)-49,
B2M2605F
B2M2606
S173094A11
ME-58
(2) Tighten bolts (e) through (h) to specified
torque.
(3) Tighten bolts (a) through (d) to specified
torque.
Tightening torque:
25 N·m (2.5 kgf-m, 18.1 ft-lb)
2) Adjust the valve clearances. <Ref. to ME-32,
ADJUSTMENT, Valve Clearance.>
3) Install rocker cover and connect PCV hose.
4) Install camshaft sprocket. <Ref. to ME-55,
INSTALLATION, Camshaft Sprocket.>
5) Install timing belt assembly. <Ref. to ME-51,
INSTALLATION, Timing Belt Assembly.>
6) Install belt cover.
INSTALLATION, Belt Cover.>
7) Install crankshaft pulley. <Ref. to ME-47,
INSTALLATION, Crankshaft Pulley.>
8) Install V-belt. <Ref. to ME-45, INSTALLATION,
V-belt.>
C: DISASSEMBLY
1) Remove bolts which secure rocker shaft.
2) Extract rocker shaft. Remove valve rocker
arms, springs, plates and shaft supports from
rocker shaft.
CAUTION:
Arrange all removed parts in order so that they
can be installed in their original positions.
3) Remove nut and adjuster screw from valve
rocker.
D: ASSEMBLY
S173094A02
1) Install adjuster screw and nut to valve rocker.
2) Arrange valve rocker arms, springs and shaft
supports in assembly order and insert valve rocker
shaft.
Tightening torque (Shaft supports installing
bolts):
5 N·m (0.5 kgf-m, 3.6 ft-lb)
CAUTION:
Valve rocker arms, rocker shaft and shaft sup-
ports have identification marks. Ensure parts
with same markings are properly assembled.
B2M2605A
<Ref. to ME-49,
S173094A06