Chapter V GW4D20 / GW4D20B Turbocharged Diesel Engine
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
289
Fig. 5-10-8 Removing the fuel injector
assembly
Fig. 5-10-9 Removing the camshaft bearing
cap
Fig. 5-10-10 Removing the intake/exhaust
camshaft
Removing the fuel injector assembly
⑧
(1) Remove the fuel injector harness plug: pull out the
harness plug self-locking device, and then remove the
fuel injector harness plug.
(2) Remove the fastening bolts of fuel injector ballast.
See Fig. 5-10-8.
(3) Remove the fuel injector ballast
(4) Take out the fuel injector assembly from the
mounting hole of fuel injector on the cylinder head.
(5) Remove the support bolt for ballast of the fuel
injector.
Prompt:
Place the removed fuel injectors carefully
according to the cylinder sequence numbers 1, 2, 3 and
4, and make the corresponding marks to these fuel
injectors. Protect them from greasy dirt or being
bumped.
Removing the camshaft bearing cap
⑨
(1) Remove the 22 hexagon flange face bolts (M6×35
and M6×20) fastening the camshaft bearing cap and
cylinder head symmetrically from the both sides of
camshaft bearing cap to the center. See Fig. 5-10-9.
(2) Remove a hexagon flange face bolt (M6×20)
connecting the vacuum pump and camshaft bearing
cap.
(3) Remove the camshaft bearing cap from cylinder
head.
Removing the intake/exhaust camshaft assembly
⑩
(1) Take the intake/exhaust camshaft assembly out of
the cylinder head. See Fig. 5-10-11.
(2) Remove the blank cover and the camshaft front oil
seal from the cylinder head.
Check the front oil seal of camshaft and replace it if
it is damaged.
Fuel injector
assembly
Cylinder head
Camshaft
bearing cap
Cylinder head
Camshaft
