Chery S11 / Chery QQ. Manual — part 108
Chery QQ Service Manual
Mechanical Part of SQR 472Engine
1
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
2
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
3
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
4
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
RH
Right Hand
Right Hand
LH
Left Hand
Left Hand
FR
Front
Front
RR
Rear
Rear
IN
Intake
Intake
EX
Exhaust
Exhaust
SAE
Society of Automotive Engineers
Society of Automotive Engineers
API
American Petroleum Institute
American Petroleum Institute
SPECIAL
TOOL
Special Tool
Special Tool
T
Torque
Torque
Ay
Assembly
Assembly
S/A
Sub Assembly
Sub Assembly
W/
With
With
M/T
Manual Transmission
Manual Transmission
A/T
Automatic Transmission
Automatic Transmission
T/C
Turbo Charger
Turbo Charger
Standard value
Limit
Reference
Difference
Notice
Warning
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