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CYLINDER HEADNALVES
8·14
INSPECTION
CYLINDER HEAD
Check
the
sparl<
plug hote
and valve
areas
for cracks.
Check
the
cylinder
head
for warpage with a straight
edge and a
feeler
gauge.
SERVICE
LIMIT
:
0.05
mm
(0.002
in)
ROCKER ARM/SHAFT
Disassemble the cylinder head (page 8-12).
Check the rocker
arm
shafts and rocker arms
for
wear
or
damage.
Turn the rocker
affil rollers [1] wi
th
your
finger.
The
rollers should
tum
smoothly and quielly.
Measure
the
1.0.
of
each
rocker arm.
SERVICE
LIMIT:
INfEX
:
10.10 mm (0.398
in)
Measure
the
0.0.
of
each
rocker arm
shaft.
SERVICE
LIMIT: INfEX:
9.91
mm
(0.390 in)
Calculate
Ihe rocker arm-to-shaft
clearance.
SERVICE
LIMIT:
IN/EX:
0.044
mm
(0.0017 in)
VALVE SPRING
Disassemble the cylinder
head
(page
8-12).
Measure the
free
length of
the
valve springs.
SERVICE
LIMIT:
IN:
29.82
mm (1.174
In)
EX: INNER: 30.35
mm
(1 .195In)
OUTER: 31.08
mm
(1.224
in)
Replace the springs if
they are
shorter
than the
service
limit.
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41
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