MAINTENANCE MANUAL OF GW4D20/GW4D20B TURBOCHARGED DIESEL ENGINES
242
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
Fig. 5-5-5 Removing the turbocharger heat
shield and turbocharger
turbocharger assembly and the turbocharger gasket.
Check the turbocharger gasket and replace it if
there is any damage or deformation.
Fig. 5-5-6 Removing the air intake pipe of
EGR condenser
Fig. 5-5-7 Removing the heat shield of
exhaust manifold pipe
Removing the air intake pipe of EGR condenser
⑤
(1) Remove the 2 hexagon flange bolts (M8×1.25) on
air intake pipe of EGR condenser and exhaust manifold
pipe. See Fig. 5-5-6.
(2) Remove the 2 hexagon flange bolts (M8×20)
connecting the air intake pipe of EGR condenser and
EGR condenser components. See Fig. 5-5-6.
(3) Remove the air intake pipe, air intake pipe gasket
and air intake port gasket of EGR condenser.
Check the sealing gasket and replace it if there is
any damage or deformation.
Removing the heat shield of exhaust manifold pipe
and exhaust manifold pipe
⑥
(1) Remove the 4 hexagon flange bolts (M6×12)
fastening the heat shield of exhaust manifold pipe, and
take off the heat shield of exhaust manifold pipe. See
Fig. 5-5-7.
Turbocharger
Heat shield
Fuel return
hose
Air intake pipe of
condenser
condenser
Exhaust
manifold pipe
gasket
Exhaust
manifold pipe
Heat shield
