Chery S11 / Chery QQ. Manual - part 108

Chery QQ Service Manual

Mechanical Part of SQR 472Engine

CONTENTS

Chapter 1 Reading Instruction ...................................................................................................................................... 2

1) Reading method of Maintenance Instruction............................................................................................................ 2

2) Meaning of Marks and Abbreviations ...................................................................................................................... 3

3) Special Maintenance Tool......................................................................................................................................... 4

Chapter 2 Disassembly, Assembly and Maintenance.................................................................................................... 6

1) Timing Belt............................................................................................................................................................... 6

1. Structure Diagram............................................................................................................................................. 6

2. Disassembly ...................................................................................................................................................... 7

3. Installation ...................................................................................................................................................... 10

2) Camshaft................................................................................................................................................................. 13

1. Structure Diagram........................................................................................................................................... 13

2. Disassembly .................................................................................................................................................... 14

3. Installation ...................................................................................................................................................... 16

4. Routine Inspection of Valve ............................................................................................................................ 19

3) Cylinder Head......................................................................................................................................................... 22

1. Structure Diagram........................................................................................................................................... 22

2. Disassembly .................................................................................................................................................... 23

3. Routine Inspection .......................................................................................................................................... 23

4) Water Pump ............................................................................................................................................................ 29

1. Structure Diagram........................................................................................................................................... 29

2. Disassembly .................................................................................................................................................... 29

3. Cleanup ........................................................................................................................................................... 29

4. Routine Inspection .......................................................................................................................................... 29

5. Assembly......................................................................................................................................................... 29

5) Oil Pump................................................................................................................................................................. 29

1. Structure Diagram........................................................................................................................................... 30

2. Disassembly .................................................................................................................................................... 30

3. Cleanup ........................................................................................................................................................... 30

4. Disassembly and Assembly of Engine Oil Pump............................................................................................ 43

4.1 Structure Diagram................................................................................................................................. 42

4.2 Disassembly .......................................................................................................................................... 42

4.3 Routine Inspection ................................................................................................................................ 42

4.4 Installation............................................................................................................................................. 44

5. Disassembly of Oil Seal.................................................................................................................................. 45

5.1 Structure Diagram................................................................................................................................. 45

5.2 Disassembly .......................................................................................................................................... 46

5.3 Inspection.............................................................................................................................................. 46

5.4 Assembly of Oil Seal ............................................................................................................................ 46

6 Assembly.......................................................................................................................................................... 46

6) Crank Connecting Rod Mechanism........................................................................................................................ 46

1. Structure Diagram........................................................................................................................................... 48

2. Disassembly of Crank Connecting Rod mechanism ....................................................................................... 48

3. Cleanup ........................................................................................................................................................... 49

4. Routine Inspection .......................................................................................................................................... 52

5. Assembly of Crank Connecting Rod Mechanism ........................................................................................... 53

Chery QQ Service Manual

Mechanical Part of SQR 472Engine

Chapter 3 Table of Main Fit Clearance for SQR472 Engine ...................................................................................... 55

Chapter 4 Table of Measurement Parameters of SQR472 Engine .............................................................................. 59

Chapter 5 Table of Main Fitting Torque for SQR472 Engine ..................................................................................... 61

Chapter 6 Positions on SQR472 Engine to be Lubricated .......................................................................................... 62

Chapter 7 Positions on SQR472 Engine to be Spread with Sealant............................................................................ 65

Chery QQ Service Manual

Mechanical Part of SQR 472Engine

Chapter 1. Reading Instruction

1) Reading Method of Maintenance Instruction

１.1 Auxiliary Materials

If it is required in the operation instruction to prepare the auxiliary materials such as special tools, tools, measuring

instruments and grease in advance, you should list all auxiliary materials required in a table before carrying out each

operation.

Since the ordinary tools, lifter and spare parts are conventional materials used in the maintenance, they are omitted

here.
１.2 Operating Sequence and Structure Diagram

(1) The diagram of structure and components, name of components and installation status are set forth at the

beginning of each chapter or section.

(2) The number in the figure refers to the disassembly sequence of each component. The components which may not

be reused and the tightening torque are indicated in the figure.

①  Seal Ring
②  Engine Oil Pump Cover Sheet
③  Engine Oil Pump Outer Rotor
④  Engine Oil Pump Inner Rotor
⑤  Cotter Pin
⑥  Oil Drain Valve Spring Seat
⑦  Oil Drain Valve Spring
⑧  Slide Block
⑨  Crankshaft Front Oil Seal

⑩ Engine Oil Pump Housing

1 .3 Content Omitted in this Manual

The following operating procedures have been omitted in this Manual, and they should be carried out in the actual

operation:

(1) Operation relating to the lifter and the small-sized elevator;

(2) Cleaning and wipping of common components;

(3) Relevant visual inspection.

※: Components which may

not be reused

Unit: N·m(kg·cm)

Chery QQ Service Manual

Mechanical Part of SQR 472Engine

1 .4 Definitions

Refers to allowed value during inspection, maintenance and adjustment.

Refers to the maximum or minimum value that should not be exceeded during

inspection, maintenance and adjustment

Set the standard value for simple measurement to prevent from its measuring

difficulty and inconsistency to facts.

Refers to the difference between maximum value and minimum value.

It carries the cases of damaging the vehicle and parts so you should pay attention

to the operation description.

It records the operation descriptions of cases about person accident.

2) Meaning of Marks and Abbreviations

Mark

Original Words

Intepretation

Right Hand

Left Hand

Front

Rear

Intake

Exhaust

SAE

Society of Automotive Engineers

API

American Petroleum Institute

SPECIAL

TOOL

Special Tool

Torque

Assembly

S/A

Sub Assembly

With

M/T

Manual Transmission

A/T

Automatic Transmission

T/C

Turbo Charger

Standard value

Limit

Reference

Difference

Notice

Warning

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