Chery S11 / Chery QQ. Manual — part 240
Chery QQ Maintenance Manual 465 Engine Mechanical System
CHAPTER 1 Technical Parameters of Engine
1 Specification
1.1 Technical specification
Model DA465Q-1A2/D
Mode
Four cylinders.Four stroke. Water-cooling. Rectitrain.
.Breadthways. Overhead camshaft. EFI
Bore 65.5mm
Stroke 78mm
Pressure ratio
9. 0: 1
Displacement
1051m1
Nominal power
38.5kW(5200 r/min)[gross power]
MAX torque
83N5m(3000~3500r/min) [gross power]
MIX fuel consumption
275g/kw5h[gross power]
Nominal RPM
5200r/min
Idle speed
850±50r/min
Idle speed
CO≤0.5% HC≤100PPm DB11/044-1999
High idle speed
CO≤0.3% HC≤100PPm DB11/044-1999
Tail gas
Mode
CO≤2.2 g/km HC+NO
X
≤0.5g/km EC 96
Strays
GB 14023-2000
Steering
Widdershing
Spark advance angle
6°~7° [idle model]
Spark order
1-3-4-2
Oil pressure
0.294~0.539MPa(3.0~5.5kgf/cm
2
)
3000r/min
Inclusive mission
776×609×656.7mm
Outline
long×width×height× Not inclusive mission
396×609×656.7mm
Weight
Not inclusive mission
98kg
Fuel
90# GB19730-99
unleaded gasoline
Oil
Environmental temperature >-20 SF15W/40
℃
<-20
℃
SF5W/30
Coolant quantity
3.5L
Oil quantity
3.0L
Mission oil quantity 1.5L
Suction filter
Turf
Spark F6RTC
Generator
Silicon rectify generator
Start-mode Electricity
start-up
Cooling method
Pump circulation water-cooling
Lubricating method Pressure and splash compound
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Chery QQ Maintenance Manual 465 Engine Mechanical System
1.2 Oil pump
3000rpm
294 - 539kpa
1.3 Specification of fastener
Application Specification
Engine Metric(N.m)
Pulley bolt
95 + (30°- 45°)
Stretching pulley accessories bolt
26±4
Camshaft bracket cover bolt
8±2
Camshafttiming pulley bolt
45±5
Connect rod bearing cap bolt
28~32
Coolant temperature sensor
Max 20
Cankshaft main bearing cap bolt
43-48
Cylinder head bolt
55-60
Engine flywheel bolt
40-45
Exhaust manifold nut
18-23
Engine mounting bracket set bolt
25±2.5
Knock sensor bolt
15-25
Intake manifold nut
18-23
Oil filter
12-16
Oil pan bolt
4-5
Oil pan drain plug
20-25
Oil pressure sensor
12-15
Oxygen sensor
40-60
Oil pump bolt
8-10
Spark plug
20-30
Left overhang of connecting front frame
side member
50±5
Engine left overhang gasket of
connecting transmission
40±5
Engine rear overhang and vehicle body
100±5
Engine rear overhang and bracket
100±5
Engine right overhang and vehicle body
50±2.5
Engine right overhang and bracket
100±5
2 Engine lubricant
Viscosity of oil is decided by outer temperature of gasoline or diesel engine,it is acceptable
for engine temperature to be much higher or lower than given temperature in a short time.It
is necessary for the user not to make the engine working at high speed for a long time and it
is necessary for the user not to make the engine overloaded, if the temperature exceeding the
limit or the user uses low-viscosity oil such as SAE 5W-30.
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Chery QQ Maintenance Manual 465 Engine Mechanical System
Regulations
C = Conventional engine oil
NT=New Technological oil
Classification of viscosity — ACEA/API grade
Scope of Temperature
Grade of Quality
Engine oil
SAE
From To
ACEA
Standard
API Standard
5W—30
-20 +20
A1/B1
A2/B2
SH SJ/CE CF
10W—30
-20 +20
A1/B1
A2/B2
SH SJ/CD CE
10W—40
-20 >+40
A2/B2
A3/B3
SH SJ/CD CE
10W—50
-20 >+40
A2/B2
A3/B3
SH SJ/CE CF
10W—60
-20 >+40
A2/B2
A3/B3
SH SJ/CE CF
15W—40
-15 >+40
A2/B2
A3/B3
SH SJ/CE CF
15W—50
-15 >+40
A2/B2 SG/CD
20W—40
-10 >+40
A2/B2
SF
SG/CD
Conventional
Engine oil
20W—50
-10 >+40
A2/B2
SF
SG/CD
10W—30
-20 >+40
A3/B3 SJ/CF
10W—40
-20 >+40
A3/B3 SJ/CF
5W—30
<-30 >+40 A3/B3 SJ/CF
5W—40
<-30 >+40 A3/B3 SJ/CF
5W—50
<-30 >+40 A3/B3 SJ/CF
0W—30
<-30 >+40 A3/B3 SJ/CF
NT- New
technique
0W—40
<-30 >+40 A3/B3 SJ/CF
Notice:
It is applicable only under the circumstance of ACEA and API standard being listed
ACEA standard can not replace API standard,on the contrary ,API standard can take the
place of ACEA standard.
Viscosity is not equal to quality.
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Chery QQ Maintenance Manual 465 Engine Mechanical System
CHAPTER 2 Diagosis of the Engine
1 Engine pressure test.
It can make sure the condition of piston ring valve and cylinder head gasket to carry out
compression pressure test for the engine cylinder.
1 The storage battery must be up to the standard of normal voltage or close to the normal
voltage if you want the operational temperature of engine to be normal.
2 Turn off the engine.
3 Stop ignition.
4 Stop fuel system.
5 Remove all spark plugs.
6 Remove anti-vacuum pipe in throttle valve body.
7 Lock the throttle valve to be open with dog.
8 Check the engine pressure according to the following steps:
You shall fix the pressure gauge in spark-plug hole,while the engine working along with the
starter, you should make the testing cylinders finish 4 compression strokes at least.You shall
examine and record the readings of every stroke pressure gauge,then throw out the pressure
gauge,as to the other cylinders,repeat above-mentioned steps to carry out the pressure test.
9 Record all pressure readings of all cylinders
Standard pressure of cylinder:1.32Mpa ( Rotational speed of engine shall be no less than
300r/min), pressure of every cylinder shall be no less than 1.10Mpa,pressure difference
between any two cylinders shall be no more than 0.098Mpa.
10 Example of possible testing results are introduced as follows:
a Pressure of all cylinders shall be steadily improved to approach the stipulated pressure
promptly, when the pressure is tested to be normal
b It is probably due to piston ring if pressure of the first stroke is too low,but it is showing
a tendency to go up in the afterwards strokes but not reaching the normal standard yet ,or
the pressure goes up obviously after three times being infected with oil.
c It is probably due to valve if pressure of the first stroke is too low and it remains low in
afterwards strokes or the pressure keep the former state after being injected with oil.
d It is probably due to cylinder head gasket if pressure of two neighboring cylinders is too
low or there is some coolant in the crankcase.
11 Remove dog from throttle valve plate
12 Install anti-vacuum pipe to throttle valve body
13
Install spark plug
2 General introduction to digonosis of engine noise
Notice: Comparing with sound of other engines,you should make sure that you are not
giving a lot of trouble to maintain the normal one,because some engines have normal special
noise out of consideration of design.
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