Chery QQ6 (S21) / S12LHD. Manual — part 86

Multiple steps tightening (torque +

angle)

No.

Connection part

Part name

Bolt

(thread specification)

Number

of bolts/

gaskets

(piece)

Tightening

torque

Nm (primary

tightening)

First step

tightening

torque (Nm)

Second step

angle (°)

Third step

angle (°)

64

Exhaust manifold-cylinder head

Stud bolt

M8×1×46

9

12+3

——

——

——

65

Exhaust manifold-cylinder head

Hexagon nut

M8

9

20+5

——

——

——

66

Exhaust pipe thermal

shield-exhaust pipe

Hexagon bolt

M8×12

3

20+5

——

——

——

67

Oil return pipe bracket-cylinder

block

Hexagon bolt

M8×20

1

20+5

——

——

——

68

Oil return pipe hollow screw

M14×1.5

1

15+3

——

——

——

69

Bracket-oil-gas separator

Inner hexagonal bolt

M5×14

2

6+2

——

——

——

70

Bracket-oil-gas separator

Inner hexagonal bolt

M6×14

2

8+3

——

——

——

M4

2.5±0.5

——

——

——

M5

5±1.5

——

——

——

M6

8±3

——

——

——

M7

15±3

——

——

——

M8

20±5

——

——

——

85

Other

M10

40±5

——

——

——

V. The Parts where Lubrication are Required during Assembly of

Engine

No.

Lubrication parts

Type of lubricant

1

Piston pin and pin hole

SJ10W-40

2

Piston ring groove

SJ10W-40

3

Connecting rod bearing shell and connecting

rod journal

SJ10W-40

4

Cylinder sleeve hole

SJ10W-40

5

Main bearing lining and crankshaft main

journal

SJ10W-40

6

Crankshaft thrust sheet (at oil groove side)

and thrust surface

SJ10W-40

7

Head and thread of connecting rod bolt

SJ10W-40

8

Head and root of main bearing cap bolt

SJ10W-40

9

Rear oil seal edge and crankshaft oil seal

journal

SJ10W-40

10

Head and root of cylinder head bolt

SJ10W-40

11

Valve guide orifice

SJ10W-40

12

Valve stem

SJ10W-40

13

Valve oil seal lip

SJ10W-40

14

Valve seat insert

SJ10W-40

15

Valve keeper ring groove

SJ10W-40

16

Cam and journal of camshaft

SJ10W-40

17

Camshaft bearing hole

SJ10W-40

18

External surface and base plane of hydraulic

jib

SJ10W-40

19

Hydraulic jib hole and valve rocker arm head

SJ10W-40

20

Outer ring of oil pump

SJ10W-40

21

Edge or journal of camshaft oil seal

SJ10W-40

22

Intake and exhaust phaser control valve

gaskets

SJ10W-40

23

Journal of intake and exhaust phaser

SJ10W-40

VI. The Parts where Rubber Coating are Required during Assembly

of Engine

No.

Parts where rubber coating are required

Type of sealant

1

Cylinder block bowl plug

Loctite 648

2

Cylinder block main oil passage plug

Loctite 243

3

Junction plane of framework and cylinder

block

Loctite 515

4

Outer ring of crankshaft rear oil seal

Loctite 243

5

Framework and oil pan

Loctite 5910

6

Cylinder head bowl plug

Loctite 648

7

Main oil passage screw plug

Loctite 243

8

Base plane of first bearing cap

Loctite 574

9

Water temperature sensor

Loctite 243

10

Oil pressure switch

Loctite 243

11

Flywheel bolt

Loctite 243

12

Oil pan main oil passage plug

Loctite 243

13

Engine oil collector separator bolt

Loctite 243

Chapter Three Special Tools

I. Connotation of Special Tool Number

In order to know or find the tool clearly according to parts number and improve maintenance

efficiency, special tools numbering is stipulated as follows:

□□□□□ ○ ○ ○ ○ □

□ indicates a letter ○ indicates an Arabic numeral

Nomenclature of the tool: for a standard part, please use the brand and model recommended by

Chery company as reference. For example, CH indicates a non standard part, which means it is a

special tool for repair of this part verified by After Sales Service Department of Chery Automobile

Sales Co., Ltd. HAZET indicates a standard tool produced by this company.

Connotation of system code corresponding to the tool:

Number

Position

1

Chassis

2

Engine

3

Transmission

4

Accessory

5

Body

Corresponding series number of tools: from 001 to 999.

Times of modifications of the tool:

Number

Modification

A

First modification

B

Second modification

C

Third modification

D

Fourth modification

Note: In alphabetical order. Bigger SN means more modification times.

For example: CH-1002A means it is the 2# special tool for repair of chassis system that has been

verified by After Sales Service Department of Chery Automobile Sales Co., Ltd., who commits

Please use the special tools that we designated to perform maintenance, otherwise it

will cause accident or damage the machine.

Maintemance times coresponding to tools

SN coresponding to tools

System code coresponding to tools

Tools name