Infiniti G37 Coupe. Manual - part 644

EX-2

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Removal and Installation

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CAUTION:

• Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat

resistance, corrosion resistance, and shape.

• Perform the operation with the exhaust system fully cooled down because the system will be hot

just after engine stops. 

• Be careful not to cut your hand on the heat insulator edge.

PREPARATION

EX-3

< PREPARATION >

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PREPARATION

PREPARATION

Special Service Tool

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The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commercial Service Tool

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Tool number
(Kent-Moore No.)
Tool name

Description

KV10114400
(J-38365)
Heated oxygen sensor wrench

Loosening or tightening heated oxygen sen-
sor 2 
For 22 mm (0.87 in) (a) width hexagon nut

S-NT636

(Kent-Moore No.)
Tool name

Description

A: (J-43897-18)
B: (J-43897-12)
Heated oxygen sensor thread cleaner

Reconditioning the exhaust system threads 
before installing a new heated oxygen sensor 
(Use with anti-seize lubricant shown below.)
A: J-43897-18 (18 mm dia.) for zirconia 
heated oxygen sensor
B: J-43897-12 (12 mm dia.) for titania heat-
ed oxygen sensor
C: Mating surface shave cylinder
D: Flutes

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Anti-seize lubricant (Permatex 133AR 
or equivalent meeting MIL specifica-
tion MIL-A-907)

Lubricating heated oxygen sensor thread 
cleaner when reconditioning exhaust system 
threads

Power tool

Loosening bolts and nuts

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AEM489

PBIC0190E

EX-4

< ON-VEHICLE MAINTENANCE >

EXHAUST SYSTEM

ON-VEHICLE MAINTENANCE

EXHAUST SYSTEM

Inspection

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Check exhaust pipes, muffler and mounting for improper attachment,
leaks, cracks, damage or deterioration.
• If anything is found, repair or replace damaged parts.

SMA211A

EXHAUST SYSTEM

EX-5

< ON-VEHICLE REPAIR >

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ON-VEHICLE REPAIR

EXHAUST SYSTEM

Exploded View

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1.

Mounting bracket

2.

Mounting rubber

3.

Main muffler

4.

Gasket

5.

Mounting rubber

6.

Mounting rubber

7.

Mounting bracket

8.

Center muffler

9.

Gasket

10. Three way catalyst (bank 1)

11. Heated oxygen sensor 2 (bank 1)

12. Collar

13. Grommet

14. Exhaust mounting bracket

15. Grommet

16. Heated oxygen sensor 2 (bank 2)

17. Three way catalyst (bank 2)

18. Gasket

19. Dynamic damper

20. Exhaust front tube

21. Gasket

22. Dynamic damper

Refer to 

GI-4, "Components"

 for symbols in the figure.

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