MAINTENANCE MANUAL OF GW4D20/GW4D20B TURBOCHARGED DIESEL ENGINES
348
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
Fig. 5-19-5 Removing the engine accessories
Removing the engine accessories
③
.
(1) Remove the tension pulley. See Fig. 5-19-5.
(2) Remove the flat idle wheel assembly and wedge idle
wheel assembly.
(3) Remove the steering pump support component. See
Fig. 5-19-5.
(4) Remove the generator and the generator bracket.
Fig. 5-19-6 Removing the damping pulley
assembly
Fig. 5-19-7 Removing the timing system
Removing the damping pulley assemblies
④
.
(1) Remove 4 hexagon flange bolts (M8×20) for
fastening damping pulley at the front end of crankshaft.
See Fig. 5-19-6.
(2) Remove the damping pulley assembly from the front
end of crankshaft.
Removing the timing system
⑤
.
(1) Remove the timing hood components I and II and
the timing hood from the front end of the engine, and
the timing rear hood from the front end of the cylinder
head.
(2) Remove the timing tension pulley assembly: loosen
the combined fastening bolt of timing tension pulley and
remove the timing tension pulley. See Fig. 5-19-7.
(3) Remove the timing belt. See Fig. 5-19-7.
(4) Remove the timing idle wheel assembly: unscrew
the fastening bolts of timing idle wheel, and remove the
timing idle wheel. See Fig. 5-19-7.
(5) Remove the camshaft timing pulley: loosen the bolt
gasket component of camshaft timing pulley and
remove the camshaft timing pulley.
(6) Remove the crankshaft timing pulley: loosen the
fastening bolt of crankshaft timing pulley and remove
the crankshaft timing pulley.
