Chery automobile Service Manual page 35

Valve stem size and fit clearance
Class
Diameter of
valve stem
+
8.043
Standard
−
Oversized
+
8.443
−
0.4
Measure the free length and elasticity of the
valve spring
Compression Spring load
length (mm)
L =37.084
1
L =27.7
2
L =27.0
3
Intake mm
Inner
Diameter of
valve guide
0
8.063—8.094
. 0 018
0
8.463—8.494
. 0 018
Free Length
of Spring
(N)
(mm)
422
892.7
L =47.2
0
945
Diameter
Clearance of valve
stem
+
8.017
−
0.02—
0.069
+
8.417
−
B-14
Exhaust mm
Inner Diameter
of valve guide
0
8.063—8.094
. 0 018
0
8.463—8.494
. 0 018
Clearance
0.046—
0.095