Great Wall engine 4G64S4M. Manual - part 4

11-10

AC GENERATOR AND

IGNITION SYSTEM

DISASSEMBLY AND MOUNTING

1.

driving belt

2.

water pump pulley

3.

power steering pump pulley

4.

AC generator support

5.

AC generator

6.

crankshaft pulley

7.

spark plug cable

8.

spark plug

9.

ignition coll

10. front top cover of timing toothed-belt

11. ignition coil bracket

A

D

E

ENGINE

 AC GENERATOR AND IGNITIONSYSTEM

7

8

25N.m

23N.m

4

5

10

11N.m

9

25N.m

6

11

3

9

11N.m

23N.m

Disassembly Procedure

11-11

NOTES FOR DISASSEMBLY

DISASSEMBLY OF CRANKSHAFT BOLT

(1)

Fasten flywheel with special tools

(2)

Disassemble crankshaft bolt.

NOTES FOR MOUNTING

MOUNTING OF CRANKSHAFT BOLT

(1)

Fasten flywheel with special tools.

(2)

Mount crankshaft bolt.

ADJUST DRIVING BELT TENSION TO STANDARD

VALUE WITH DEFLECTION INDICATOR OR

TENSION GAUGE

STANDARD VALUE

NEW BELT ....................................................... 5.5

7.5mm

OLD BELT ........................................................ 7.5

8.5mm

STANDARD VALUE

NEW BELT ....................................................... 50

 70KG

OLD BELT ........................................................ 35

 45KG

D

E

MD998781

9EN0268

MD998781

9EN0268

100N

water pumo pulley

crankshaf

AC generator pulley

6EN0595

6EN0596

ENGINE

 TIMING TOOTHED-BELT

A

11-12

1.

front lower cover of timing thoothed-belt

2.

timing toothed-belt

3.

temsioning pulley

4.

tensioning arm

5.

automatic tensioner

6.

centrual pulley

7.

tensioning pulley bracket

8.

rear cover of timing toothed-belt

9.

timing toothed-belt indicator

10. oil pump toothed-bet wheel

TIMING TOOTHED-BELT

DISASSEMBLY AND MOUNTING

11. crakshaft bolt**

12. crankshaft toothed-belt wheel

13. flange

14. tensioner B

15. timing toothed-belt B

16. balancing shaft toothed-belt wheel

17. spacer

18. crankshaft toothed-belt wheel B

19. camshaft toothed-belt bolt

20. camshaft toothed-belt wheel

E

D

F

B

D

C

A

G

E

H

F

C

B

G

H

A

11N.m

17

16

15

45N

19N

14

13

18

8

88N

19

20

2

9

8.8N.m

10

54N.

7

6

35N.

4

22N.

12

162N.m

11

48N.

3

48N.

24N.

1

11N.m

6EN1769

ENGINE

 TIMING TOOTHED-BELT

Disassembly Procudure

11-13

NOTES FOR DISASSEMBLY

DISASSEMBLY OF TIMING TOOTHED-BELT

(1)

Record the rotation direction of toothed-belt for correct re-

mounting.

Notes:

 Adhering of water or grease to the toothed-belt will sharply

shorten its service life. So, after disassembly, try your best to

avoid the toothed-belt, toothed-belt wheel and tensioner from

being contaminated and adhered by water or grease. No need to

clean these parts. Replace it if it is seriously contaminated.

 In case water or grease is found on these parts, check the front cover

oil-seal, camshaft oil-seal and water pump if there exist leakage.

DISASSEMBLY OF OIL PUMP TOOTHED-BELT

WHEEL

(1)

Assemble the cock on the cylinder block.

(2)

Insert a cross point screwdriver of 8mm diameter to  fasten

the balancing shaft on the left side.

(3)

Disassemble oil pump toothed-belt wheel nut.

(4)

Disassemble oil pump toothed-belt wheel.

DISASSEMBLY OF CRANKSHAFT BOLT

(1)

Fasten the flywheel with special tools.

(2)

NOTES FOR DISASSEMBLY

DISASSEMBLY OF TIMING TOOTHED-BELT

DISASSEMBLY OF CRANKSHAFT TOOTHED-BELT

WHEEL

(1)

In case difficult to disassemble due to adhesion, use special

tools.

DISASSEMBLY OF TIMING TOOTHED-BELT

WHEEL B

(1)

Record the rotation direction of toothed-belt for correct re-

mounting.

Notes:

 Adhering of water or grease to the toothed-belt will sharply

shorten its service life. So, after disassembly, try your best to

avoid the toothed-belt, toothed-belt wheel and tensioner from

being contaminated and adhered by water or grease. No need to

clean these parts. Replace it if it is seriously contaminated.

D

C

A

B

6EN0662

6EN0663

6EN0634

MD998781

MD998778

6EN0642

DEN0601

ENGINE

 TIMING TOOTHED-BELT WHEEL

E