Chery T21 2014 Service Manual page 481

c. Check cylinder head height.
Using a precision ruler, measure cylinder head height.
Measurement Item
Cylinder Head Height
If cylinder head height is not within the specified
range, replace cylinder head.
CAUTION
 During replacement, cylinder head should be fully equipped with valves, oil seals, springs, spring seats,
cotters, hydraulic lifters and camshafts.
2. Check valve spring.
Using a vernier caliper, measure free length of valve
spring and length of valve spring with the pre-pressure
between 249 N and 271 N.
Measurement Item
Valve Spring Free Length
Valve Spring Length under
Pre-pressure
If valve spring length is not within the specified range,
replace valve spring.
3. Check valve.
a. Clean valve.
 Using a scraper, remove the carbon deposited on
valve head
 Using a wire brush, clean the valve thoroughly.
b. Check valve height.
Using a micrometer, measure valve height.
Measurement Item
Intake Valve Height
Exhaust Valve Height
If height is less than specified value, replace the
valve.
Chery Automobile Co., Ltd.
Specification
(mm)
a
97
Specification
(mm)
47.70
41
Specification
(mm)
107.998
106.318
07 - SQR484F ENGINE MECHANICAL
RT21070581
RT21070582
RT21070583
Total Height
RT21070584
07
59
07–