Great Wall GW491QE, Руководство по обслуживанию

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GI-5
Engine฀service฀/maintenance฀data-฀specification/adjustment฀parameters฀/maintenance฀technical
data฀for฀key฀components
Name Test items Standard value Use limit
R ocker and axis
for valve
Inner diameter of rocker hole
Diameter of rocker shaft
Gap between rocker and rocker shaft 18.5
18.5
0.018~0.046 0.08
Intake manifold
pipe
Planeness 0.05 0.4
Timing gear / chain
gear
When the sagging of chain is 98N,
Diameter of rear chain wheel (with chain)
Crankshaft
Camshaft
L ength of chain warp after use
T hickness of chain tensioner
T hickness of shock absorber
13.5
58.2
113.23
291.4
12.5
5
Camshaft and
bearing
Max. circumferential radial beat
eccentricity
Height of cam Min. convex value
A ir intake
A ir exhaust
A xial diameter of camshaft No.1
No.2
No.3
No.4
No.5
Clearance of axial diameter
A xial clearance
0.05
38.6791
38.6869
46.5
46.25
46
45.75
45.5
0.025~0.081
0.07~0.22 0.10
0.30
Cylinder block
Planeness
Diameter of bore hole
increased size 0.50
increased size 0.75
increased size 1.00
91
0.05
91.24
91.74
91.99
92.24
Piston and piston
ring
Piston diameter
increased size0.50
increased size0.75
increased size1.00
Clearance of piston
Side play of annular groove
Opening gap of piston ring
First gas ring
Second gas ring
Oil ring
90.938~90.968
91.425~91.455
91.675~91.705
91.925~91.955
0.042~0.062
0.03~0.075
0.20~0.40
0.35~0.55
0.20~0.80
0.065~0.085
1.11
1.07
1.10
Piston pin and
connection rod
A xial clearance of main body for
connection rod on big head end
A xial clearance of connection-rod
cover
B end of connection rod every 100mm
Distort of connection rod every
100mm
Inner diameter of connection rod on
small head
E xterior diameter of piston pin
Gap of inner hole on small head side
of piston pin and connection rod 0.16~0.31
0.021~0.051
0.03
0.03
22.010~22.016
22.003~22.006
0.004~0.013
0.18~0.32
0.05
0.15
+0.013
0
-0.018
-0.033
0
-0.2
0
-0.23
-0.025
-0.041
-0.025
-0.041
-0.025
-0.041
-0.025
-0.041
-0.025
-0.041
+0.030
0
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