Infiniti G37 Coupe. Manual - part 609

 

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Infiniti G37 Coupe. Manual - part 609

 

 

PREPARATION

EM-11

< PREPARATION >

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Valve guide drift

Removing and installing valve guide (EXH)
Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.

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Valve guide reamer

A: Reaming valve guide (EXH) inner hole
B: Reaming hole for oversize valve guide 
(EXH)
Exhaust:
c: 6.0 mm (0.236 in) dia.
d: 10.2 mm (0.402 in) dia.

(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner

Reconditioning the exhaust system threads 
before installing a new air fuel ratio sensor and 
heated oxygen sensor (Use with anti-seize lu-
bricant shown below.)
A: J-43897-18 [18 mm (0.71 in) dia.] for zir-
conia heated oxygen sensor and air fuel 
ratio sensor
B: J-43897-12 [12 mm (0.47 in) dia.] for tita-
nia heated 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 oxygen sensor thread cleaning 
tool when reconditioning exhaust system 
threads

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Feeler gauge

Inspection valve clearance (Use a curved-tip 
gauge)

(Kent-Moore No.)
Tool name

Description

JPBIA0400ZZ

JPBIA0401ZZ

JPBIA0238ZZ

AEM489

JPBIA1362ZZ

EM-12

< ON-VEHICLE MAINTENANCE >

DRIVE BELTS

ON-VEHICLE MAINTENANCE

DRIVE BELTS

Exploded View

INFOID:0000000001547609

Checking

INFOID:0000000001547610

WARNING:

Be sure to perform the this step when engine is stopped.
• Check that the indicator (C) (notch on fixed side) of drive belt auto-tensioner is within the possible use range

(A).
NOTE:
• Check the drive belt auto-tensioner indication when the engine is cold.
• When new drive belt is installed, the indicator (notch on fixed side) should be within the range (B) in the fig-

ure.

• Visually check the entire drive belt for wear, damage or crack.
• If the indicator (notch on fixed side) is out of the possible use range or belt is damaged, replace drive belt.

Tension Adjustment

INFOID:0000000001547611

Refer to 

EM-138, "Drive Belt"

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Removal and Installation

INFOID:0000000001547612

REMOVAL

1.

Remove engine undercover with power tool.

JPBIA1060ZZ

1.

Power steering oil pump

2.

Alternator

3.

Drive belt auto-tensioner

4.

Idler pulley

5.

Crankshaft pulley

6.

A/C compressor

7.

Idler pulley

8.

Drive belt

9.

Idler pulley

A.

Possible use range

B.

Range when new drive belt is installed

C.

Indicator

D.

View D

DRIVE BELTS

EM-13

< ON-VEHICLE MAINTENANCE >

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2.

While securely holding the square hole (A) in pulley center of
auto tensioner (1) with a spinner handle, move spinner handle in
the direction of arrow (loosening direction of drive belt). 

CAUTION:

Never place hand in a location where pinching may occur if
the holding tool accidentally comes off.

3.

Under the above condition, insert a metallic bar of approximately
6 mm (0.24 in) in diameter [hexagonal wrench (C) shown as
example in the figure] through the holding boss (B) to lock auto-
tensioner pulley arm.

4.

Remove drive belt.

INSTALLATION

Note the following, and install in the reverse order of removal.

CAUTION:

• Check drive belt is securely installed around all pulleys.
• Check drive belt is correctly engaged with the pulley groove.
• Check for engine oil and engine coolant are not adhered drive belt and pulley groove.

Inspection

INFOID:0000000001547613

INSPECTION AFTER INSTALLATION

• Turn crankshaft pulley clockwise several times to equalize tension between each pulley, and then confirm

tension of drive belt at indicator (notch on fixed side) is within the possible use range. Refer to 

EM-12,

"Exploded View"

.

: Loosening direction of drive belt

JPBIA0003ZZ

EM-14

< ON-VEHICLE MAINTENANCE >

AIR CLEANER FILTER

AIR CLEANER FILTER

Removal and Installation

INFOID:0000000001547614

REMOVAL

1.

Unhook clips (1).

2.

Remove air cleaner filter (1) from air cleaner case (2).

INSTALLATION

Note the following, and install in the reverse order of removal.
• Install the air cleaner filter by aligning the seal with the notch of air cleaner case.

2

: Air cleaner case

3

:  Holder

JPBIA1345ZZ

3

:  Holder

4

:  Clip

JPBIA1346ZZ

 

 

 

 

 

 

 

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