Infiniti Q45. Manual - part 553

 

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Infiniti Q45. Manual - part 553

 

 

IGNITION COIL

EM-29

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IGNITION COIL

PFP:22448

Removal and Installation

NBS001ON

REMOVAL

1.

Remove engine cover (with power tool), air duct (inlet), air cleaner cover and battery cover. Refer to 

EM-

13, "Removal and Installation"

 .

2.

Remove air duct and air cleaner case assembly. Refer to 

EM-17, "AIR CLEANER AND AIR DUCT"

 .

3.

Move heater hose and its peripheral parts aside. (No. 7 cylinder)

4.

Disconnect harness connector from ignition coil.

5.

Remove ignition coil.

CAUTION:

Do not shock it.

INSTALLATION

Install in the reverse order of removal.

1.

Ignition coil

2.

Spark plug

PBIC1589E

EM-30

SPARK PLUG (PLATINUM-TIPPED TYPE)

SPARK PLUG (PLATINUM-TIPPED TYPE)

PFP:22401

Removal and Installation

NBS001OO

REMOVAL

1.

Remove ignition coil. Refer to 

EM-29, "IGNITION COIL"

 .

2.

Remove spark plug with the spark plug wrench (commercial ser-
vice tool).

CAUTION:

Do not drop or shock it.

INSPECTION AFTER REMOVAL

Use standard type spark plug for normal condition.

The hot type spark plug is suitable when fouling occurs with the standard type spark plug under conditions
such as:

Frequent engine starts

Low ambient temperatures

The cold type spark plug is suitable when spark knock occurs with the standard type spark plug under condi-
tions such as:

Extended highway driving

Frequent high engine revolution

Spark plug (Platinum-tipped type):

CAUTION:

Do not drop or shock spark plug.

Do not use a wire brush for cleaning.

If plug tip is covered with carbon, spark plug cleaner may
be used.

SEM294A

Make

NGK

Standard type

PLFR5A-11

Hot type

PLFR4A-11

Cold type

PLFR6A-11

Plug gap (Nominal)

: 1.1 mm (0.043 in)

Cleaner air pressure:

Less than 588 kPa (6 kg/cm

2

  , 85 psi)

Cleaning time:

Less than 20 seconds

SMA773C

SPARK PLUG (PLATINUM-TIPPED TYPE)

EM-31

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Checking and adjusting plug gap is not required between
change intervals.

INSTALLATION

Install in the reverse order of removal.

SMA806CA

Spark plug:

 : 24.6 N·m (2.5 kg-m, 18 ft-lb)

EM-32

FUEL INJECTOR AND FUEL TUBE

FUEL INJECTOR AND FUEL TUBE

PFP:16600

Removal and Installation

NBS001OP

CAUTION:

Do not remove or disassemble parts unless instructed as shown in the figure.

REMOVAL

WARNING:

Put a “CAUTION: INFLAMMABLE” sign in the workshop.

Be sure to work in a well ventilated area and furnish workshop with a CO

2

  fire extinguisher. 

Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.

1.

Remove engine cover with power tool. Refer to 

EM-13, "ENGINE ROOM COVER"

 .

2.

Release fuel pressure. Refer to 

EC-80, "FUEL PRESSURE RELEASE"

 .

1.

Fuel injector sub harness (right)

2.

Centralized under-floor piping

3.

Fuel feed hose

4.

Quick connector cap

5.

O-ring

6.

Fuel damper (right)

7.

Fuel tube (right)

8.

Spacer

9.

Fuel feed damper

10.

Fuel damper and fuel hose assembly 11.

Clip

12.

O-ring (Green) 

13.

Fuel injector

14.

O-ring (Black)

15.

Fuel tube (left)

16.

Fuel injector sub harness (left)

PBIC4065E

 

 

 

 

 

 

 

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