Chery QQ Service Manual 465 Engine Mechanical System
- 29 –
Chery Automobile Co., Ltd
Chapter 14 Replacement of
Engine Body
I procedures of disassemble
1 Remove engine from vehicle accordingly.
2 Fix the engine assembly on the bracket.
3 Take off the piston and connecting rod
assembly of engine accordingly.
4 Take off crankshaft.
5 Clean the engine body thoroughly.
6 Check to see whether or not there are
some cracks or wear in the engine block.
II Repair cylinder
If cylinder block of engine can be still used
while there are something wrong with the
cylinder after inspection, so you can repair
the cylinder by means of polishing the
inside .After performance of polishing the
cylinder, the cylinder shall be able to have a
capacity of larger piston.
Polishing of cylinder
Notice
: Some of above-mentioned
procedures can be omitted , judgment of
necessity depends on result of inspection
before repair.
You must use fine hone stones to polish the
stones, it is not good to make the polishing
too smooth, it only needs slight smoothness
for helpful lubrication. cylinder after
grinding, you use rough particles stones first,
then use fine particles Put the hone stone in
the cylinder and make the hone stone close
to the cylinder wall as possible as you can,
you rotate the hone stone around, connect a
19mm electric drill to the stone, make the
stone rotating inside the cylinder, make the
stone turning up and down slowly to the full
until it can rotate freely.
Put appropriate amount of kerosene in the
cylinder in order to keep the hone stone and
cylinder wall clean and lubricated, continue
to polish it and repeat the procedures until
you get requested diameter.
Notice: Stop polishing frequently to put the
piston in the cylinder to check whether or
not the distance is appropriate, clean the
cylinder thoroughly before putting the
piston in. The engine block should be
cleaned thoroughly after repair.
III
Procedures of installation
1 Install the crankshaft accordingly.
2 Install transmission rod of piston
assembly accordingly.
3 Install engine assembly to the vehicle
accordingly.
