Infiniti Q45. Manual — part 576
EX-1
EXHAUST SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTION
EX
A
EX
EXHAUST SYSTEM
PREPARATION . . . . . . . . . . . . . . ... 2
Special Service Tools . . . . . . . . . . . ... 2
Commercial Service Tools . . . . . . . . . . 2
EXHAUST SYSTEM . . . . . . . . . . . . ... 3
Checking Exhaust System . . . . . . . . . ... 3
Removal and Installation . . . . . . . . . . .. 3
DUAL MODE MUFFLER . . . . . . . . . . . 7
Component Parts Location . . . . . . . . . ... 7
Wiring Diagram -VEXH- . . . . . . . . . . ... 8
EXHAUST CONTROL VALVE . . . . . . . ... 9
DUAL MODE MUFFLER ACTUATOR . . . . ... 9
EX-2
PREPARATION
PREPARATION
PFP:00002
Special Service Tools
NBS0028M
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tools
NBS0028N
Tool number
(Kent-Moore No.)
Tool name
Description
KV10114400
(J-38365)
Heated oxygen sensor wrench
Loosening or tightening heated oxygen
sensor
For 22 mm (0.87 in) width hexagon nut
S-NT636
(Kent-Moore No.)
Tool name
Description
a: (J-43897-18)
b: (J-43897-12)
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 (0.71 in) dia.] for
zirconia heated oxygen sensor and air fuel
ratio sensor
b: J-43897-12 [12 mm (0.47 in) dia.] for
titania heated oxygen sensor
(
—
)
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL
specification MIL-A-907)
Lubricating heated oxygen sensor thread
cleaner when reconditioning exhaust system
threads
Power tool
Loosening bolts and nuts
AEM488
AEM489
PBIC0190E
EXHAUST SYSTEM
EX-3
C
D
E
F
G
H
I
J
K
L
M
A
EX
EXHAUST SYSTEM
PFP:20100
Checking Exhaust System
NBS0028O
Check exhaust pipes, muffler and mounting for improper attachment,
leaks, cracks, damage or deterioration.
●
If anything is found, repair or replace damaged parts.
Removal and Installation
NBS0028P
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 insulator edge.
SMA211A
EX-4
EXHAUST SYSTEM
REMOVAL
1.
Remove cable from exhaust control valve. Refer to Dual mode muffler,
EX-10, "Removal and Installation"
.
2.
Disconnect harness connector of each heated oxygen sensor 2.
NOTE:
Information for parts installation/disassembly is as follows although the information is not needed in view
of installation/disassembly procedure.
●
Put marks to identify installation positions of each heated oxygen sensor 2.
●
The harness connector shape of heated oxygen sensor 2 is varying in right and left.
1.
Main muffler
2.
Actuator
3.
Gasket
4.
Ground cable
5.
Cable
6.
Mounting rubber
7.
Exhaust front tube
8.
Bracket
9.
Heated oxygen sensor 2 (bank2)
10.
Heated oxygen sensor 2 (bank1)
11.
Ring gasket
12. Bracket
13.
Bracket
14.
Gasket
15. Center muffler
16.
Center muffler
17.
Gasket
18. U-clamp
19.
Serration bolt
20.
Main muffler
A.
Vehicle with rear active steer
PBIC4210E
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