Chpter IV Mechanical System
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
145
Fig. 4-2-23 Installing the camshaft timing
pulley
Fig. 4-2-24 Installing the timing system
Fig. 4-2-25 Installing the timing system
Reinstalling the fuel return hose component
④
(1) Use DELPHI fuel injector. Insert respectively the fuel
return rubber hoses into 4 injector heads and position
them in place. See Fig. 4-2-22.
(2) Use BOSCH or XINFENG fuel injector. Remove the
dust cap from the upper end of the fuel injector. Install 4
short connectors of the fuel return hose into the 4 holes
at the upper end of the fuel injector, and fix them tight
with the spring clips. Install the other long connector to
the fuel return tee on the high pressure pump, and fix it
tight with a clip.
(3) Install the fuel return hose support and clamp.
Make sure the fuel return hose is sealed properly
without leakage after installation.
Reinstalling the fuel inlet pipe component of fuel
injector
③
As shown in Fig. 4-2-22, install the fuel inlet pipe of the
fuel injector and tighten evenly the pipe connectors at
both ends of the 4 fuel inlet pipes of the fuel injector
according to the specified torque.
Make sure the fuel inlet pipe of fuel injector is
sealed properly without leakage after installation.
Tightening torque for fuel inlet pipe connector of
fuel injector
32 N·
m±3 N·
m
Attention:
When tightening the fuel inlet pipe of the
fuel injector, tighten the pipe connectors at both ends of
the pipe simultaneously and evenly to prevent the fuel
inlet pipe from deforming.
Reinstalling the timing system
②
(1) Install the woodruff key to the exhaust camshaft,
install the timing pulley to the exhaust camshaft and
tighten the fastening bolt washer component to the
required torque. The camshaft timing pulley should be
pressed and installed to the right position without
deflection.
(2) Adjust the scale mark on camshaft timing pulley to
align it with the joint (at exhaust side) between cylinder
head and camshaft bearing cap. See Fig. 4-2-23.
Tightening torque for bolt washer component of
camshaft timing pulley
110 N·
m±5 N·
m
Timing mark
Bone-line
Camshaft timing
pulley
Timing mark of damping
pulley
Timing mark of timing
hood component II
Damping pulley
Horizontal
bar
Timing mark
Fuel pump pulley
