Infiniti EX35. Manual - part 703

PREPARATION

EM-11

< PREPARATION >

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(J24239-01)
Cylinder head bolt wrench

Loosening and tightening cylinder head bolt, 
and used with the angle wrench [SST: 
KV10112100 (BT8653-A)]
a: 13 mm (0.51 in) dia.
b: 12 mm (0.47 in)
c: 10 mm (0.39 in)

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1.Compression gauge
2.Adapter

Checking compression pressure

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Spark plug wrench

Removing and installing spark plug
a: 14 mm (0.55 in)

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Valve seat cutter set

Finishing valve seat dimensions

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Piston ring expander

Removing and installing piston ring

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Valve guide drift

Removing and installing valve guide
Intake and 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 inner hole
B: Reaming hole for oversize valve guide
Intake and Exhaust:
c: 6.0 mm (0.236 in) dia.
d: 10.2 mm (0.402 in) dia.

(Kent-Moore No.)
Tool name

Description

JPBIA0398ZZ

ZZA0008D

JPBIA0399ZZ

NT048

NT030

JPBIA0400ZZ

JPBIA0401ZZ

EM-12

< PREPARATION >

PREPARATION

(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

(Kent-Moore No.)
Tool name

Description

JPBIA0238ZZ

AEM489

DRIVE BELT

EM-13

< ON-VEHICLE MAINTENANCE >

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ON-VEHICLE MAINTENANCE

DRIVE BELT 

Exploded View

INFOID:0000000003139083

Checking

INFOID:0000000003139084

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

Tension Adjustment

INFOID:0000000003139085

Refer to 

EM-139, "Drive Belt"

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Removal and Installation

INFOID:0000000003139086

REMOVAL

1.

Remove engine undercover with power tool.

JPBIA0002ZZ

1.

Power steering oil pump

2.

Alternator

3.

Drive belt auto-tensioner

4.

Crankshaft pulley

5.

A/C compressor

6.

Idler pulley

7.

Drive belt

8.

Idler pulley

A.

Possible use range

B.

Range when new drive belt is installed

C.

Indicator

D.

View D

EM-14

< ON-VEHICLE MAINTENANCE >

DRIVE BELT

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:0000000003139087

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-13,

"Exploded View"

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: Loosening direction of drive belt

JPBIA0003ZZ