Chapter V GW4D20 / GW4D20B Turbocharged Diesel Engine
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
343
Fig. 5-18-3 Removing the transmission and
the clutch assembly
Fig. 5-18-4 Removing the clutch assembly
Fig. 5-18-5 Removing the flywheel gear ring
assembly
Removing the transmission assembly
①
(1) Remove the drive shaft at the flange yoke.
(2) Remove the transmission assembly.
——Remove the rotation speed sensor connector.
——Remove the bolts connecting the transmission and
clutch in proper order, and remove the transmission
assembly. See Fig.5-18-3.
Removing the clutch assembly
②
Attention:
Any fluid should not be allowed to
remain on the surface of the clutch. If there is some
fluid, remove it.
(1) Use guide centering device to prevent the clutch
from falling off the driven disc assembly freely, as
shown in Fig. 5-18-4.
Guide centering device: 5-5825-3001-0.
(2) Make a mark on the flanges of flywheel and
pressure plate to facilitate the alignment during the
installation.
(3) Loosen 9 bolts that fasten the clutch pressure plate
assembly in proper order, and remove the clutch
assembly.
Removing the flywheel gear ring assembly
③
(1) Install the flywheel retainer.
(2) Loosen 8 flywheel fixing bolts that fasten the
flywheel gear ring to the rear end of the crankshaft in
proper order, and remove the flywheel gear ring
assembly. See Fig.5-18-5.
Removing the rear oil seal of crankshaft
④
(1) While pushing the rear oil seal of crankshaft inside,
use a special tool to carry out the installation as shown
in Fig. 5-18-6 to facilitate the removal of the oil seal.
Detacher for the rear oil seal: 5-8840-2360-0.
(2) Remove the rear oil seal of crankshaft from the rear
end of cylinder body.
Attention:
When removing the rear oil seal of
crankshaft, do not damage the crankshaft and the
cylinder body.
Transmission
Clutch assembly
Crankshaft
Flywheel and
gear ring
