Chapter V GW4D20 / GW4D20B Turbocharged Diesel Engine
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
371
with required torque. Ensure that it is sealed without
leakage of water after installation. See Fig. 5-20-19.
Fig. 5-20-19 Installing the water drain bolt
Fig. 5-20-20 Installing the cooling nozzle
assembly
Fig. 5-20-21 Installing the crankshaft position
sensor signal panel
Water Drain bolt tightening torque
50N·
m±3N·
m
LOCTITE 243 thread fixative.
(7) Install the thermostat shield, the thermostat and the
thermostat cover to the intake side of the cylinder body.
Installing the cooling nozzle assembly
○
16
Install the cooling nozzle and fasten the hexagon socket
mushroom head screw (M6×12) to the upper cylinder
body. See Fig. 5-20-20.
Tightening torque for fastening screw of the cooling
nozzle
9N·
m±3N·
m
Installing the crankshaft and the crankshaft position
signal panel
○
15
Choose the main shaft bearing shell as shown in Fig.
4-4-1, 4-4-2.Install the upper main shaft bearing shell
with oil groove and oil hole to the upper cylinder body
and the lower main shaft bearing shell without oil groove
and oil hole to the lower cylinder body.A wrong
installation is not allowed. And apply a proper amount of
lubricating oil after the completion of the upper and the
lower main shaft bearing shell installation.
Mobil API CI-4 lubricating oil
Install the crankshaft position sensor signal panel to the
eighth crank arm of the crankshaft and tighten 3
hexagon lobular socket countersunk head screws
(M6×12) with required torque.Any deviation or
displacement is not allowed. See Fig. 5-20-21.
Tightening torque for hexagon lobular socket
countersunk head screw
9N·
m±3N·
m
(3) Apply an appropriate amount of lubricating oil to the
crankshaft main bearing journal and the oil holes, and
then install the crankshaft to the upper cylinder body.
Mobil API CI-4 lubricating oil
Crankshaft axial clearance
0.10~0.28mm
Water drain bolt
Crankshaft
Crankshaft
position signal
panel
Cylinder body
Cooling nozzle
