Nissan GT-R. Manual - part 90

EM-8

< PERIODIC MAINTENANCE >

SPARK PLUG

SPARK PLUG

Exploded View

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Removal and Installation

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REMOVAL

1.

Remove engine cover with power tool. Refer to 

EM-10, "Exploded View"

.

2.

Remove intake manifold collector. Refer to 

EM-17, "Exploded View"

.

CAUTION:

Mark the parts with paint in advance of the reinstallation to prevent misalignment between the
intake manifold collector and intake manifold.

3.

Remove ignition coil.

1.

Ignition coil

2.

Spark plug

3.

Oil filler cap

4.

Oil filler tube

5.

O-ring

6.

Fresh air hose

7.

Rocker cover (bank 1)

8.

Rocker cover gasket (bank 1)

9.

Rocker cover gasket (bank 2)

10.

Fresh air hose

11.

Rocker cover (bank 2)

A.

To fresh air tube (bank 1)

B.

To fresh air tube (bank 2)

C.

This work is recommended to be per-
formed by GT-R certified NISSAN 
dealer.

Refer to 

GI-4, "Components"

 for symbols in the figure.

NNBIA0067ZZ

SPARK PLUG

EM-9

< PERIODIC MAINTENANCE >

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4.

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

CAUTION:

Never drop or shock spark plug.

INSTALLATION

Installation is the reverse order of removal.

Inspection

INFOID:0000000009162822

INSPECTION AFTER REMOVAL

Use the standard type spark plug for normal condition.

CAUTION:

• Never drop or shock spark plug.
• Never use a wire brush for cleaning.
• If plug tip is covered with carbon, spark plug cleaner may be

used.

• Measure spark plug gap. When it exceeds the limit, replace spark plug even if it is within the speci-

fied replacement mileage. Refer to 

EM-28, "Spark Plug"

.

• Spark plug gap adjustment is not required between replace-

ment intervals.

a

: 14 mm (0.55 in)

JPBIA0030ZZ

Spark plug (Standard type)

: Refer to 

EM-28, "Spark Plug"

.

Cleaner air pressure:

Less than 588 kPa (6 kg/cm

2

, 85 psi)

Cleaning time:

Less than 20 seconds

SMA773C

JPBIA0031ZZ

EM-10

< REMOVAL AND INSTALLATION >

ENGINE COVER

REMOVAL AND INSTALLATION

ENGINE COVER

Exploded View

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Removal and Installation

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Removal

Remove engine cover with the following cares.

CAUTION:

•  Perform this step when the engine is cold.
•  Never damage engine cover.
•  Wipe out oil with wasted as soon as possible whenever necessary.
•  Never exert pressure by hand on the surface of engine cover.

Installation

Install engine cover with the following cares.

CAUTION:

•  Never damage engine cover.
•  Never get harnesses and hoses caught between engine cover and intake manifold collector.
•  Wipe out oil with wasted as soon as possible whenever necessary.
•  Never exert pressure by hand on the surface of engine cover.

1.

Engine room cover

Refer to 

GI-4, "Components"

 for symbols in the figure.

NNBIA0011GB

DRIVE BELT AUTO TENSIONER AND IDLER PULLEY

EM-11

< REMOVAL AND INSTALLATION >

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DRIVE BELT AUTO TENSIONER AND IDLER PULLEY

Exploded View

INFOID:0000000009162827

1.

Front timing chain case

2.

Drive belt auto-tensioner

3.

Idler pulley

4.

Idler pulley

Refer to 

GI-4, "Components"

 for symbols in the figure.

NNBIA0010GB