Service manual

THE ROCKER ARMS AND CAMSHAFT
5. Measure:
• rocker arm shaft outside diameter a
Out of specification -» Replace.
Rocker arm shaft outside diameter
9.981 ~ 9.991 mm (0.3930 ~ 0.3933
in)
<Limit>:9.950mm (0.3917 in)
6. Calculate:
•rocker-arm-to-rocker-arm-shaft clearance
NOTE:
Calculate the clearance by subtracting the rocker
arm shaft outside diameter from the rocker arm
inside diameter.
Above 0.034 mm (0.0013 in) -» Replace the de-
fective part(s).
Rocker-arm-to-rocker-arm-shaft
clearance
0.009 ~ 0.034 mm (0.0004 ~ 0.0013
in)
5-17
EAS00207
CHECKING THE TIMING CHAIN, CAMSHAFT
SPROCKET, AND TIMING CHAIN GUIDES
1. Check:
• timing chain
Damage/stiffness -» Replace the timing
chain and camshaft sprocket as a set.
2. Check:
• camshaft sprocket
More than 1/4 tooth wear a -» Replace
the camshaft sprocket and the timing
chain as a set.
a 1/4 tooth
b Correct
(T) Timing chain roller
(2) Camshaft sprocket
3. Check:
• timing chain guide (exhaust side)
• timing chain guide (intake side)
Damage/wear -» Replace the defective
part(s).