Infiniti FX35, FX50 (S51). Manual - part 928

EM-12

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PREPARATION

Commercial Service Tools

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KV10112100
(BT8653-A)
Angle wrench

Tightening bolts for connecting rod bearing 
cap, cylinder head, etc. in angle

KV10114400
(J-38365)
Heated oxygen sensor wrench

Loosening or tightening air fuel ratio sensor 1
a: 22 mm (0.87 in)

KV10118600
(J-48641)
Ring gear stopper

Removing and installing crankshaft pulley

Tool number
(Kent-Moore No.)
Tool name

Description

NT014

JPBIA0397ZZ

JPBIA0409ZZ

(Kent-Moore No.)
Tool name

Description

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Tube presser

Pressing the tube of liquid gasket

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Power tool

Loosening bolts and nuts

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Manual lift table caddy

Removing and installing engine 

NT052

PBIC0190E

ZZA1210D

PREPARATION

EM-13

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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-14

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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 an equivalent meeting MIL specifi-
cation 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-15

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PERIODIC MAINTENANCE

DRIVE BELT 

Exploded View

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Checking

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WARNING:

Be sure to perform 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

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Refer to 

EM-142, "Drive Belt"

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Removal and Installation

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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