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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