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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

≤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

）

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

SG/CD

Conventional

Engine oil

20W—50

-10 >+40

A2/B2

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

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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