Chery A21 2005, Service Manual, Page: 409 / 475

CHERY A21 SERVICE MANUAL MECHANISM OF 2.0NALC ENGINE
20
2) Check camshaft
Measure the camshaft diameter with
micrometer caliper.
Standard Value
（
mm
）
Limit Value
(mm)
Diameter
￠
24
-0.053
-0.040
Replace with the new camshaft if the
measured value exceeds the limit value.
3) Examine camshaft
Measure the high of cam with micrometer
caliper.
Standard Value
（
mm
）
limit value
（
mm
）
Intake
Cam
37.15
Exhaust
Cam
37.05
Replace with the new camshaft if the
measured value exceeds the limit value.
4) Examine diameter of valve stem
a: Measure the diameter of valve stem with
micrometer caliper.
See the picture for measuring points: they are
26, 52, and 78 mm from measure positions to
bottom of valve.
Valve
Guide
External Diameter
Of Valve Stem
Internal Diameter
Of Valve Guide
Measuring Point
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