Chapter V GW4D20 / GW4D20B Turbocharged Diesel Engine
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
311
Fig. 5-14-2 Removing the earthing cable of
storage battery
Fig. 5-14-3 Removing the engine accessories
Fig. 5-14-4 Removing the damping pulley
assembly
Removal
Preparation
(1) Disconnect the earthing cable of storage battery.
See Fig. 5-14-2.
(2) Lift the vehicle.
(3) Drain out the engine oil in the lubrication system of
the engine.
Warning:
hot oil (lubricating oil) may cause burn,
handle the used oil properly and protect the
environment.
Tightening torque of oil drain screw plug
45N·
m±5N·
m
Removing the engine accessories
①
(1) Remove the generator belt: rotate the tension pulley
with a tool to disassemble the generator belt after it is
loosened enough.
(2) Remove the tension pulley.
(3) Remove the flat idle wheel assembly and wedge idle
wheel assembly.
(4) Remove the power steering pump assembly and the
steering pump bracket: loosen the 3 or 4 hexagon
flange bolts (M8×30) fastening the power steering pump
to the steering pump bracket, and take off the power
steering pump; loosen the 3 hexagon flange bolts
(M8×25 and M8×30) fastening the steering pump
bracket to the cylinder body and take off the steering
pump bracket.
(5) Remove the generator and the generator bracket:
loosen the 3 hexagon flange bolts (M8×30,M10×45)
fastening the generator to the generator bracket, and
take off the generator; loosen the 4 hexagon flange
bolts (M8×30,M8×35) fastening the generator bracket to
the cylinder body, and take off the generator bracket.
See Fig. 5-14-3.
Removing the damping pulley assembly
②
.
(1) Remove the 4 hexagon flange bolts (M8×20)
fastening the damping pulley to the front end of
crankshaft. See Fig. 5-14-4.
(2) Remove the damping pulley assembly from the front
end of crankshaft.
