MAINTENANCE MANUAL OF GW4D20/GW4D20B TURBOCHARGED DIESEL ENGINES
410
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
Fig. 6-2-25 Installing the fuel pump pulley and
timing belt
Fig. 6-2-26 Installing the engine accessory
at both ends of the fuel pipe simultaneously and
uniformly.
Installing the fuel inlet and outlet hoses of
high-pressure fuel pump
④
Insert the fuel inlet and return hoses of high-pressure
fuel pump separately to their connectors.
Installing the fuel pump pulley
③
Install the fuel pump pulley to the fuel pump, and tighten
the pulley by a all-metal hexagon flange locknut
(M14×1.5). See Fig. 6-2-25.
Tightening torque for the locknuts of the fuel pump
pulley:
65 N•m ± 3 N•m
Installing the timing belt
②
(1) Install the timing belt. See Fig. 6-2-25.
(2) Install the timing tension pulley.
Installing the engine accessory
①
.
(1) Install the flat and wedge idle wheels assemblies of
accessory.
(2) Install the accessory tension pulley. See Fig. 6-2-26.
(3) Install the generator belt: turn the tension pulley by a
tool to make the belt loose enough and then perform the
installation. After the installation, make sure that the belt
wedge teeth and the pulley wedge tooth grooves match
well.
Timing belt
