Chpter IV Mechanical System
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
169
Fig. 4-4-31 Installing the piston connecting
rod group
Attention:
The connecting rod and the connecting
rod cover should be reinstalled as the original matching.
Reinstalling the engine oil pump assembly
⑦
(1) Coat the rubber seal ring with a small amount of
lubricating oil, and insert it fully to the bottom of the
corresponding engine oil pump housing groove. After
installation, there should be no scratch, deflection or
improper mounting.
Fig. 4-4-32 Installing the oil pump assembly
Fig. 4-4-33 Installing the upper body
assembly of oil pan
(2) Coat the front oil seal of the crankshaft with an
appropriate amount of lubricating oil, and insert it to the
bottom of the corresponding engine oil pump housing
groove. After installation, there should be no scratch,
deflection or improper mounting.
(3) Apply an appropriate amount of lubricating oil to the
inner surface of engine pump external rotor, and install
the external rotor to the engine pump cavity of the upper
cylinder body with the marks of internal and external
rotors on the same side. See Fig. 4-4-32.
Mobil API CI-4 lubricating oil
（
4
）
Install the engine oil pump assembly to the cylinder
body together, and screw down the 10 hexagon bolts and
flat ring components (M8×40, M8×25 and M8×20) as per
the specified torques and in proper order.
Tightening torque for fastening bolt of oil pump
23N·
m±3N·
m
There should be no stagnation when the oil pump
pulley is rotating after installation.
Reinstalling the oil pan lower body assembly, oil
collector assembly and oil pan upper body assembly
⑥
(1) Check the dowel pin of the oil pan upper body for
improper installation, apply rubber flat sealant to the joint
surface between the upper body of oil pan and the
cylinder body, and then install the oil pan upper body to
the cylinder body.
LOCTITE587 plane sealant.
Attention:
Make sure the joint surface between the
Front
side
Outer rotor
Seal ring
Front oil seal
Cylinder body
Upper body of
oil pan
