Chery QQ Service Manual 465 Engine Mechanical System
- 30 –
Chery Automobile Co., Ltd
Chapter 10 Replacement of
I Procedures of disassemble
See content of relevant chapters for
reference
1. Take off cylinder head accordingly.
2 Wipe residue and dust of cylinder head
away with rag.
3 Take off the oil drain plug of to let oil
drop out.
4 Take off oil pan
5 Take off oil pan gasket.
6 Disconnect the connecting rod bearing
cover and bearing.
Notice: Ensure bearing and bearing cover of
every connecting rod being in
correspondence with each other.
7 Take the piston connecting rod assembly
off the cylinder.
8 Take off piston pin from assembly with
remover.
9 Remove connecting rod from piston.
10 Measure the clearance between piston
and cylinder
standard:0.040-0.050 mm
Notice: It is necessary to prepare enlarged
standard sized piston of 0.25 mm and 0.50
mm.
II Procedures of installation
1 Install connecting rod to piston
2 Install piston and piston pin according to
the following steps:
Heat the connecting rod in piston pin hole at
the temperature between 280
℃
and
320
℃
,it is best for you to put the rod in the
oil to carry out this procedure, cool the
piston pin in dry ice, tighten the heated
connecting rod with vice.
3 Install one side of piston pin by means of
Piston
making the piston lean against the
connecting rod, then stuff the piston pin
properly, you must make sure the
installation of piston pin ring is correct.
4 Connect connecting rod assembly to
cylinder body, arrow head of piston
should face the front side of engine.
