Chery A21 - Check Camshaft; Examine Diameter of Valve Stem

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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