Chapter V GW4D20 / GW4D20B Turbocharged Diesel Engine
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
319
Fig. 5-15-2 Removing the generator belt
Fig. 5-15-3 Removing and installing the
refrigeration compressor
Fig. 5-15-4 Removing the engine oil dipstick
and its guide
Removal
Preparation
(1) Disconnect the earthing cable of storage battery.
(2) Lift the vehicle.
(3) Drain out the engine oil in the lubrication system of
the engine.
Warning:
The hot oil (lubricating oil) may cause
burn. Handle the used oil properly to protect the
environment.
Tightening torque for the oil drain screw plug
15N·
m~20N·
m
Removing the generator belt
①
Turn the tension pulley with tools until the belt is loose
enough, and then remove the generator belt.
Removing the refrigeration compressor assembly
②
(1) Remove the 4 hexagon flange face bolts (M8×28)
fastening the refrigeration compressor to the cylinder
body and oil pan. See Fig. 5-15-3.
(2) Take off the refrigeration compressor from the
cylinder body.
Removing
the
engine
oil
dipstick
guide
subassembly and engine oil dipstick assembly
③
(1) Pull out the engine oil dipstick from the engine oil
dipstick guide.
(2) Remove the 1 hexagon flange face bolts (M8×25)
fastening the engine oil dipstick guide assembly to the
timing hood.
(3) Pull out the engine oil dipstick guide assembly from
the oil pan upper body hole, as shown in Fig. 5-15-4.
Removing the lower body assembly of oil pan
④
(1) Use a spanner to remove the 14 hexagon flange
face bolts (M6×12) connecting the lower body and
upper body of oil pan in order. See Fig. 5-15-5.
(2) Take off the oil pan lower body from the upper body.
Cylinder body
Refrigeration compressor
Engine oil
dipstick guide
Engine oil
dipstick
Upper
scale mark
Lower
scale mark
