Chpter IV Mechanical System
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
171
Fig. 4-4-37 Installing the flywheel gear ring
assembly
Fig. 4-4-38 Tightening order of fastening
bolts of flywheel
Fig. 4-4-39 Inspection for cylinder head bolt
Reinstalling the flywheel gear ring assembly
⑤
(1) Insert the cylindrical pin into the pin hole at the rear
end of the crankshaft.
(2) Align the flywheel gear ring assembly to the pin hole
and fit it to the rear end of the crankshaft. Then screw
down the 8 fastening bolts of flywheel as per the
specified torque and in proper order. See Fig. 4-4-37 and
4-4-38.
(3) Install pressure plate dowel pin into flywheel gear ring
assembly.
Tightening torque for fastening bolt of flywheel gear
ring assembly.
75 N·
m±5 N·
m
Attention:
The thread fixing agent should be applied
to the thread of the flywheel bolt before being fixed.
LOCTITE 243 thread fixative.
(4) Check whether the end face runout of the flywheel is
within the range of specified values after installation.
End face runout value
Not exceed 0.12 mm
Reinstalling the cylinder head assembly
④
(1) Check the outer diameter of the cylinder head bolt. If
the cylinder head bolt is deformed, stretched or less than
the standard value in outer diameter, replace it. See Fig.
4-4-39.
(2) Check for foreign materials on the joint surface of the
cylinder head and the cylinder body, and clean it with silk.
Insert the cylinder head dowel pin sleeve into the
corresponding pin holes on the cylinder body with a
special tool and make sure they are properly assembled,
fit the fixing hole sleeve for cylinder head gasket to the
dowel pin of the cylinder body, and evenly place the
gasket to the cylinder body plane.
Make sure that the cylinder head gasket is placed
correctly in all directions after installation.
Gear ring
Flywheel
Crankshaft
Damping
pulley
