Infiniti G37 Coupe. Manual - part 618

 

  Index      Infiniti     Infiniti G37 Coupe - service repair manual 2008 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  616  617  618  619   ..

 

 

Infiniti G37 Coupe. Manual - part 618

 

 

IGNITION COIL, SPARK PLUG AND ROCKER COVER

EM-47

< ON-VEHICLE REPAIR >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

4.

Tighten bolts in two steps separately in numerical order as
shown in the figure.

5.

Install in the reverse order of removal after this step. 

A

:  Bank  1

B

:  Bank  2

: Engine front

 1st step: 2.0 N·m (0.2 kg-m, 18 in-lb)

 2nd step: 8.3 N·m (0.85 kg-m, 73 in-lb)

JPBIA1175ZZ

EM-48

< ON-VEHICLE REPAIR >

TIMING CHAIN

TIMING CHAIN

Exploded View

INFOID:0000000001547600

1.

Timing chain (secondary)

2.

Camshaft sprocket (EXH)

3.

O-ring

4.

Timing chain (secondary)

5.

Camshaft sprocket (EXH)

6.

Internal chain guide

7.

Timing chain (primary)

8.

Camshaft sprocket (INT)

9.

Timing chain tensioner (primary)

JPBIA1101GB

TIMING CHAIN

EM-49

< ON-VEHICLE REPAIR >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

Removal and Installation

INFOID:0000000001547601

REMOVAL

1.

Release the fuel pressure. Refer to 

EC-601, "Inspection"

.

2.

Disconnect the battery cable from the negative terminal.

3.

Remove engine cover with power tool. Refer to 

EM-24, "Exploded View"

.

4.

Remove radiator reservoir tank. Refer to 

CO-14, "Exploded View"

.

5.

Remove air duct and air cleaner case assembly (RH and LH). Refer to 

EM-26, "Exploded View"

.

6.

Remove engine undercover with power tool.

7.

Drain engine coolant from radiator. Refer to 

CO-8, "Draining"

.

CAUTION:

• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.

8.

Remove radiator hose (upper and lower). Refer to 

CO-14, "Exploded View"

.

9.

Drain engine oil. Refer to 

LU-7, "Draining"

.

CAUTION:

Perform this step when the engine is cold.

10. Remove radiator cooling fan assembly. Refer to 

CO-14, "Exploded View"

.

11. Remove drive belt. Refer to 

EM-12, "Removal and Installation"

.

12. Separate engine harnesses by removing their brackets from front timing chain case.

13. Remove oil cooler tube. Refer to 

LU-10, "Exploded View"

.

14. Remove intake manifold collector. Refer to 

EM-28, "Exploded View"

.

15. Remove fuel sub tube mounting bolt. Refer to 

EM-36, "Exploded View"

.

16. Remove oil level gauge and oil level gauge guide.
17. Remove A/C compressor from bracket with piping connected, and temporarily secure it aside. Refer to

HA-38, "Exploded View"

.

18. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.

Refer to 

ST-34, "EXCEPT FOR SPORT MODELS : Exploded View"

 or 

ST-39, "SPORT MODELS :

Exploded View"

.

19. Remove power steering oil pump bracket.
20. Remove idler pulley, drive belt auto-tensioner and bracket. Refer to 

EM-25, "Exploded View"

.

21. Remove alternator and alternator bracket. Refer to 

CHG-25, "Exploded View"

.

22. Remove water pipe. Refer to 

CO-24, "Exploded View"

.

10.

Slack guide

11. Crankshaft sprocket

12.

Camshaft sprocket (INT)

13.

Tension guide

14.

Intake valve timing control cover 
gasket (bank 1)

15.

Seal ring

16.

Intake valve timing control cover 
(bank 1)

17. O-ring

18.

Camshaft position sensor (PHASE) 
(bank 1)

19.

Oil level gauge

20. Oil level gauge guide

21.

O-ring

22.

Intake valve timing control solenoid 
valve (bank 2)

23.

Intake valve timing control cover 
(bank 2)

24.

Camshaft position sensor (PHASE) 
(bank 2)

25.

Intake valve timing control cover 
gasket (bank 2)

26. Front oil seal

27.

Crankshaft pulley

28.

Crankshaft pulley bolt

29.

Intake valve timing control solenoid 
valve (bank 1)

30.

Power steering oil pump bracket

31.

Idler pulley bracket

32. Alternator bracket

33.

Water outlet (front)

34.

Front timing chain case

35. Rear timing chain case

36.

O-ring

37.

O-ring

38. O-ring

A.

Refer to 

EM-49

B.

Refer to 

EM-79

C.

Oil filter 

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

EM-50

< ON-VEHICLE REPAIR >

TIMING CHAIN

23. Remove camshaft position sensor (PHASE).

CAUTION:

• Handle carefully to avoid dropping and shocks.
• Never disassemble.
• Never allow metal powder to adhere to magnetic part at

sensor tip.

• Never place sensors in a location where they are exposed

to magnetism.

24. Remove intake valve timing control covers and gasket as follows:
a.

Disconnect intake valve timing control solenoid valve harness connector.

b.

Loosen mounting bolts in reverse order as shown in the figure.

CAUTION:

Shaft is internally jointed with camshaft sprocket (INT) cen-
ter hole. When removing, keep it horizontal until it is com-
pletely disconnected.

c.

Shaft is engaged with camshaft sprocket (INT) center hole on inside. Pull straight out so that it does not tilt
until the joint is disengaged.

25. Remove intake valve timing control solenoid valve, if necessary.

CAUTION:

Intake valve timing control solenoid valve is nonreusable. Never remove it unless required.

26. Remove rocker covers (bank 1 and bank 2). Refer to 

EM-45, "Exploded View"

.

27. Obtain No.1 cylinder at TDC of its compression stroke as follows:
a.

Rotate crankshaft pulley clockwise to align timing mark (grooved
line without color) with timing indicator.

b.

Check that exhaust cam noses on No.1 cylinder (engine front
side of bank 1) is located as shown in the figure.

• If not, turn crankshaft one revolution (360 degrees) and align

as shown in the figure.

28. Remove crankshaft pulley as follows:

A

: Keep free from magnetic materials

JPBIA0454ZZ

A

:  Bank  1

B

:  Bank  2

C

: Dowel pin hole

JPBIA1333ZZ

: Timing mark (grooved line without color)

JPBIA0043ZZ

1

: Camshaft (EXH) (bank 1)

: Engine front

JPBIA1127ZZ

 

 

 

 

 

 

 

Content   ..  616  617  618  619   ..