Chery S11 / Chery QQ. Manual — part 252

Chery QQ Maintenance Manual 465 Engine Mechanical System

nut fixture:3.5-4.5 N.m
3 Connect cooling fan power
4 Check to see whether or not fan motor
works normally.

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5 Replacement of thermostat
Steps of removal
1 Remove timing belt see illustration of
timing belt removal for reference.
2 Remove camshaft timing pulley ,see
illustration of camshaft timing belt removal
for reference.
3 Remove timing belt housing bolt and rear
cover of timing belt
4 Loosen and remove thermostat bolt.
5 Remove thermostat

Steps of installation
1 Install thermostat and new gasket, tighten
the bolt if necessary.
Notice: Place the gasket properly on the
entrance.
2 Tighten the bolt
3 Connect hose to the thermostat.
4 Connect intake hose to thermostat shell.
5 Install timing belt housing rear cover.
6 Install camshaft timing pulley,see the
installation illustration of camshaft timing
pulley for reference.
7 Install timing belt,see the installation
illustration of timing belt for reference.
HINT: Add drinking water and 3.3 liter
radiator protective liquor in the
system,drain the atmosphere of the engine
block away.

Chery QQ Maintenance Manual 465 Engine Mechanical System

6 Replacement of water pump
Steps of removal
1 Remove timing belt,see the removal
illustration for reference.
2 Remove camshaft timing pulley,see the
removal illustration of camshaft timing
pulley for reference.
3 Remove time pinion from crankshaft,see
relevent content for reference.
4 Loosen bolt of timing belt tension roller
and remove timing belt tension roller
5 Remove rear cover of the timing belt.
6 Disconnect lower hose of radiator and
collect coolant
7 Loosen water pump bolt and remove
water pump.

Steps of installation
1 Install new sealing washer,parts serial
number is 9158173,lubricate the parts with
sillicon oxide grease,parts serial number is
9309994.
2 Connect water pump to the engine
body,don’t bolt to the regulated torque.
3 Connect lower hose of radiator
4 Install rear cover of timing belt housing.
5 Install time pinion on the crankshaft.
6 Install camshaft timing pulley to the
camshaft,see the installation illustration of
camshaft timing pulley for reference.
7 Install timing belt,see the installation and
connection illustration for reference,during
this operational process,bolt the water pump
to the regulated torque and fasten it after
tune-up timing belt tension roller.
Water pump bolt: 7±3mm
Attention:Add drinking water and 3.3 liter
radiator protective liquor,parts serial
number is 9985451
Remove water lamp mounted on the top of
temperature regulation valve,drain the
atmosphere of engine body away,start the
engine to make it idle running at a speed of
900 rpm after system recovery.


7 Replacement of radiator
Steps of removal
1 Remove air filter and air passage
assembly,see the content of engine control
system for reference.
2 Loosen up and down water pipe
Removal:Drain certain proportion of
coolant (about 0.5 liter) away and collect
it,remove the condenser case (including
hose),then loosen the upper end of water
inlet pipe of the radiator,so as to pull the
baffler cover and fan motor out,see the
following illustration for reference:

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Chery QQ Maintenance Manual 465 Engine Mechanical System

Loosen 2 bolts:
Loosen wire harness and take out fan
assembly
Loosen 4 bolts and pull out the fan

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Steps of installation
1 Install radiator to lower bracket.
3 Connect radiator upper hose.
4 Connect radiator lower hose.
5 Connect coolant overflow hose.
Pay attention to the notices relating to

fastener.
6 Install radiator bracket and bolt
Bolt to 6.0—8.0 Nm
7 Install cooling fan.
8 Refill the cooling system.
9 Install air filter and pipe assembly.
10 Check leakage.

8 Explanation and operation
1 Cooling system operation
cooling system

Cooling system makes engine keep

appropriate temperature under all working
conditions of engine,when the coolant
temperature is low,the fan operates slowly
to help the engine warm up.
Cooling system is composed of a
radiator,coolant reclaiming system ,cooling
fan thermostat,water pump cover and
driving belt.
Cooling system needs all components
working normally,coolant is pumped from
the radiator by water pump,it will be
recycling in inlet manifold and cylinder
head of engine body through coolant
housing, then it comes back to the
radiator,there,cooling system will make

some of the coolant lead to the heater core
from hose for being heated and
unfroze.Reservoir tank is integrated with
radiator,reservoir tank retrieve the coolant
which expand outwards when the
temperature is high and keep suitable
coolant level,along with cooling and
contraction of coolant,coolant is absorbed in

Chery QQ Maintenance Manual 465 Engine Mechanical System

the radiator for sake of vacuum.

2 Cooling recycling system
Water pump is driven by belt,coolant flow
in water pump from left bottom side of
radiator,coolant is pumped into the
peripheral empty cavity of cylinder liner
through coolant tubes in the shell of the
cylinder.Coolant flow in cylinder head
coolant tubes through cylinder head gasket
hole,then flow in the sub- branch system of
thermostat.Tubes of inlet manifold lead
coolant to the thermostat,when the
thermostate is shut off,cold engine coolant
can’t return to the radiator to carry out
recycling,preheat the engine quickly.When
engine is preheated to the full,the
thermostat is open to let coolant flow into
water inlet housing mounted on the upper
right position of the radiator.The recycling
is performed when coolant becomes cold
gradually after flowing in the water outlet
housing mounted on the left side of radiator
through level core tubes.

3 Cooling fan relay
As to information and diagnotic condition
of cooling fan relay,you can see the cooling
fan illustration for referrence


4 Coolant temperature control system
switch
The switch control the voltage of cooling
fan relay,as to the position which relay
make the fan running at a high speed and
diagnosis,under the condition of coolant
temperature exceed 95 ℃ and 102 ℃,you

can see electric system of engine.
Notice: You can add anti-icing agent in
order to raise boiling point of the
coolant,but solidifying point will be
effected if you add excessive coolant,you

are not allowed to use anti-icing agent
solution exceedingt 70,because it will freeze
from this point,temperature will go up
rapidly,pure anti-icing agent will freeze
when the temperature is -22 (

℃

-8 ).You

℉

can comply with direction of draining and
refilling the cooling system,you are only
allowed to use certain coolant regulated by
Chery Company while adding or replacing
the coolant,50% and 50% mixture of
ethylene-glycol and drinking water will
provide the following protection:
● Provide -39 anti

℃

-icing protection

● Provide 131 boiling point protection

℃

● Prevent rust and corrosion
● Keep appropriate engine temperature
● Make the warning light and thermostat
work normally

5 Explanation of coolant recovery system
Reservoir tank
Reservoir tank is the transparent tank just
like common windscreen gasket cleaner
canister,reservoir tank is integrated with
radiator through hose,it collects the
overflow coolant when the coolant
temperature is high,otherwise these coolant
will flow out of the cooling system,level of
coolant should be on or much higher than
the position of overflow hose in the tank.

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