Great Wall GW491QE, Service Manual

Page: 9 / 222

GI-6 Engine฀service฀/maintenance฀data-maintenance฀technical฀data
Unit mm
Name Test items Standard value Use limit
Crankshaft and
bearing
A xial clearance
T hickness of thrust washer
Increased by 0.125
Increased by 0.250
Main journal diameter
Clearance of main journal diameter
journal diameter of connection rod
journal clearance of connection rod
Circumferential play of main axial
diameter
R oundness /diameter of column,
for main axial diameter and
connection rod diameter
0.02~0.22
2.450~2.490
2.575~2.615
2.700~2.740
58
0.021~0.053
48
0.021~0.053
0.03
0.01
0.30
0.10
0.10
0.06
0.02
2. Cooling system
Name Test items Standard value Use limit
Capacity of
cooling fluid in
engine 7.9L
R adiator
Pressure when the pressure relief
valve of cover is opened.
(73.6~103)kpa
Min. value
not less than
58.9kpa
T hermostat
Temperature when valve is opened.
L ift distance of valve 95 (80 84)
8mm
<76
<8mm
Transmission belt
B ending deflection of transmission
belt when a 98N force is applied.
New belt
Used belt (5~7) mm
(7~8) mm
3. Lubrication system
Name Test items Standard value Use limit
Capacity of oil
Total capacity of oil dry injection
R e-injection after the removal
Without oil filter
With oil filter 4.2L
3.0L
3.5L
Oil pump
Clearance between rotor and pump
Clearance between mastery rotor
and slavery rotor
E nd clearance of rotor (0.10~0.15)mm
(0.07~0.12)mm
(0.03~0.07)mm
>0.20mm
0.20mm
0.15mm
Pressure of oil
(750 50)r/min at idle-speed
(2000 50)r/min
(3000 50)r/min
Max. temperature of oil 49kpa
170kpa
(245.2~490.3) kpa
110 <245.2kpa
0
-0.015
0
-0.015
ProCarManuals.com