SQR7080
维修手册
372
发动机机械部分
Frontward mark
7-4-5Assmbling of the crankshaft connecting rod
mechanism
1. Assembly of the piston and connecting rod
（
1
）
Use special tools to assemble the piston,
connecting rod and piston pin in the following
specified procedures.
①
Smear lubricating oil to the connecting rod pin
hole, and make the assembly according to the marks
for the same unit and in the indicated direction.
SST
SST
②
Use SST to make the installation shown as the right
figure.
③
Make adjustments and installation of the piston and
the connecting rod shown as the right figure.
④
After smearing lubricating oil to the piston pin, use
pressurizing device to assemble the piston and the
connecting rod.
[Attention]
· Pay attention to the assembling direction when
pressing in the piston pin;
The small bit of connecting rod should be heated to
300
℃
while pressing the piston pin in the piston.
Exert pressure in the process of pressing by
assuring the alignment of the pin.
（
2
）
Side face with marks should be upright,install
steel belt assembly oil ring (gasket ring,down scrapter
and upper scrapter),then install the secondary ring,then
install the primary ring
Open degree of every ring is shown as the illustration:
From up to
down
：
No.1 ring
No.2 ring
Oil ring
下刮片
Ring open angle
：
Down scrapeing
No.1 ring
No.2 ring
Gasket
Up
Up scrapeing
44
Chery Automobile Co., Ltd
