CYLINDER HEAD, CYLINDER, PISTON
CYLINDER HEAD, CYLINDER, PISTON
3-5-17
Camshaft sprocket inspection
◆
Check whether the camshaft sprocket teeth are worn
or damaged. If wear or damage is found, replace the
timing chain and sprocket with a new one.
Camshaft / camshaft lobe inspection
◆
Visually check whether the camshaft lobe is worn or
damaged.
◆
Use a micrometer to measure the height of the
camshaft lobe
【
D
】
.
Camshaft lobe height:
Standard Limit
exhaust
40.08 ± 0.04 mm
(1.5780" ± 0.0015")
39.99 mm (1.5744")
intake
40.36 ± 0.04 mm
(1.5890" ± 0.0015")
40.27 mm (1.5854")
◆
Visually inspect each camshaft journal for scratches,
wear or damage.
◆
Measure the journal value of the camshaft with a
micrometer and compare with the specifi cation.
Standard Limit
22.954 ~ 22.975 mm(0.9036" ~ 0.9045") 22.944 mm (0.9033")
TIPS
If the camshaft is damaged or the amount of wear on
any part exceeds the limit, the camshaft should be
replaced
◆
Assemble the camshaft cover separately to measure
the bore of the camshaft bearing. Tighten the bolts in
the specifi ed order.
Camshaft cover bolt
10 N
•
m (1.0 kgf
•
m, 89 in
•
lb)
Standard Limit
23.000 ~ 23.021 mm(0.9055" ~ 0.9063")
23.044 mm (0.9072")
TIPS
If the camshaft bearing bore is damaged or the amount
of wear exceeds the limit, please replace the cylinder
head assembly
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