ENGINE 3-21
INSPECTION
CYLINDER HEAD COVER DISTORTION
After removing sealant from the fitting surface of the cylinder head
cover, place the cylinder head cover on a surface plate and check
for distortion with a thickness gauge.
# Cylinder head cover distortion:
Service Limit: 0.05 mm
! 09900-20803: Thickness gauge
If the distortion exceeds the limit, replace the cylinder head cover.
ROCKER ARM SHAFT O.D.
Measure diameter of rocker arm shaft.
# Rocker arm shaft O.D.:
Standard: 11.973 – 11.984 mm
! 09900-20205: Micrometer (0 – 25 mm)
ROCKER ARM I.D.
When checking the valve rocker arm, the inside diameter of the
valve rocker arm and wear of the camshaft contacting surface
should be checked.
# Rocker arm I.D.: Standard: 12.000 – 12.018 mm
! 09900-20605: Dial calipers
REASSEMBLY
Reassemble the cylinder head cover in the reverse order of dis-
assembly. Pay attention to the following points:
• Apply engine oil to the rocker arm shafts.
NOTE:
Align the cutaway
A
of rocker arm shaft with the hole of cylinder
head cover bolt.
• After inserting the shafts, tighten the rocker arm shaft bolts.
$ Rocker arm shaft bolt: 28 N
.
m (2.8 kgf
.
m)
"
Use a new gasket B on the rocker arm shaft bolt to pre-
vent oil leakage.
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