Chery A21 2005 Service Manual page 37

2.2.3 Check
1) Check the valve spring.
Use caliper rule to check the free length of
valve spring and the length specified in
special pressure.
Free length
Length of
620N
Replace with the new valve spring if the
measured value exceeds the limit value.
2) Check camshaft
Use micrometer caliper to measure the
diameter of camshaft.
Diameter
Replace with the new camshaft if the
measured value exceeds the limit value.
3) Check the camshaft
Use micrometer caliper to measure the length
of camshaft.
Intake
camshaft
Exhaust
camshaft
Replace with the new camshaft if the
measured value exceeds the limit value.
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Standard Limit
Value(mm) value(mm)
47.7
32
Standard Limit value
value(mm) (mm)
0.15 0.20
Standard Limit value
（mm）
value (mm)
0.15 0.20
0.15 0.20
28
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