MAINTENANCE MANUAL OF GW4D20/GW4D20B TURBOCHARGED DIESEL ENGINES
380
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
Fig. 5-20-44 Installing the timing system
Fig. 5-20-45 Installing the camshaft timing
pulley
(9) Install the fuel inlet pipe of the fuel injector.
Remove the shields on the two ends of the fuel injector
fuel intake pipe as shown in Fig. 5-20-43, install the fuel
intake pipe and evenly tighten the pipe connectors at
the two ends with the required torque.
Make sure the oil pipe is sealed without oil leakage
after installation.
Tightening torque for fuel inlet pipe connector of
fuel injector
32N·
m±3N·
m
Attention:
Make sure to evenly tighten the two
ends of the fuel injector fuel inlet pipe at the same time
in installation so as to avoid the oil pipe deformation.
Installing the timing system
⑤
(1) Install the camshaft timing pulleys and the
crankshaft timing pulleys.
——Fit the woodruff key and the camshaft timing pulley
to the exhaust camshaft, and tighten the fastening bolt
and gasket subassembly according to specified
torques.See Fig. 5-20-45.
The camshaft timing pulley should be properly fitted
without any inclination.
Tightening torques for the fastening bolt and gasket
subassembly of the camshaft timing pulley
110N·
m±5N·
m
– Fit the woodruff key and the crankshaft timing pulley
to the crankshaft, and tighten the fastening bolts
according to specified torques; the crankshaft timing
pulley should be properly fitted without any inclination.
Tightening torque for fastening bolt of crankshaft
timing pulley
185N·
m~195N·
m
Timing rear hood
Timing mark
Bone-line
Camshaft
timing pulley
