Great Wall engine 4G64S4M. Manual - part 1

00-5

VEHICLE MODEL

ENGINE

MODEL

DISPLACEMENT

TYPE

HOVER CUV

4G64-D-Y7

2,351 ML

FOUR CYLINDERS, IN-LINE, SOHC

ENGINE MODEL

OVERVIEW

 ENGINE

00-6

OVERVIEW

 TIGHTENING TORQUE

Tightening Torque

The common tightening torque is shown in the list.

Tightening torque of special parts is shown at the beginning of each group.

Tightening torque of bolts and nuts

Thread Dimension

Torque (Kg. M)

Light alloy

Cast iron, steel

NPTF

1/16

0.5  

  0.8

0.8   

  1.2

PT

1/8

0.8  

  1.2

1.5   

  2.2

PT

1/4

2.0  

  3.0

3.5   

  4.5

NPTF

1/4

2.0  

  3.0

3.5   

  4.5

PT

3/8

4.0  

  5.5

5.5   

  7.5

PT

1/2

7.0  

  10.0

12.0  

  16.0

Tightening torque of taper thread

Torque (Kg. M)

Bolt (with spring washer)

Valve bolt

Head mark 4

Head mark 7

Head mark 10

Head mark 4

Head mark 7

M6

1.0

0.9

1.3

1.1

M8

1.25

1.1

1.8

3.0

1.4

2.4

M10

1.25

2.0

3.4

6.0

3.0

5.0

M12

1.25

3.6

6.2

10.8

5.5

9.0

Diameter

of bolt

Thread

pitch

00-7

Sealant (FIPG)

Sealant is used on many parts of the engine and gearbox. The using of sealant is for the purpose of adequately sealing,

therefore, much attention should be paid to the dosage, position and the surface of sealant. Insufficient dosage of sealant

may result in leakage, while superfluous dosage of sealant may result in the overflow of sealant and jam the passage of

water or oil, or narrow the passage. So, in order to avoid leaking on the mounting surface, it is absolutely necessary to

keep the correct dosage that may keep from disconnection.

FIPG used in the engine is of Room Temperature Vulcanizing (RTV) and is provided in the way of 100-gram tube (Piece

No. MD970389, for engine use). RTV may vulcanize after reaction with the water content in the air; therefore, it is usually

used on the metal end face.

Disassembly

Components assembled with sealant may be disassembled without using a special method. However, in some cases, it

is necessary to lightly hit the components with a mallet or similar tools so as to break sealant on the coupling face, or

use a smooth thin sealant knife to hit into the joint face gently without damaging the coupling face. When dismounting

the engine oil pan, use special tool for dismounting oil pan (MD998727).

Cleaning of Sealing Surfaces

Remove rubbish on the sealing surface with a sealant knife or a steel wire brush. Be sure the sealing surface is flat and

smooth, and there isn

t any oil stain of foreign object on it. Remember to remove the sealant inside the mounting hole

and the threaded holes.

Essentials for Smearing

Matters to be taken into consideration while assembling components with FIPG.

Smear sealant equally within the prescribed diameter to cover around the mounting hole. Sealant that is not yet vulcanized

can be removed. After the installation, the sealant should be sufficiently vulcanized (approximately 1 hour or so). Do

not apply oil on the smeared part or wet or startup the engine during this period.

OVERVIEW

 SEALANT(FIGP)

11-1

page

General ........................................................................ 11-2

Specifications ............................................................... 11-3

Maintaining Standard ................................................... 11-3

Tightening Torque ........................................................ 11-5

Sealant ......................................................................... 11-7

Special Tools................................................................ 11-8

AC Generator and Ignition System .............................. 11-11

Timing Toothed-belt ..................................................... 11-14

Fuel System ................................................................. 11-23

Intake Manifold ............................................................. 11-25

Exhaust Manifold and Water Pump .............................. 11-26

Rocker Arm and Camshaft ........................................... 11-28

Cylinder Head and Valve ............................................. 11-34

Front Cover and Oil Pump ........................................... 11-40

Piston and Connecting Rod ......................................... 11-49

Crankshaft, Cylinder Block and Flywheel ..................... 11-55

AC Generator ............................................................... 11-62

Starter .......................................................................... 11-66

Throttle Body ................................................................ 11-70

Engine

Contents

11