Infiniti Q45 (FY33). Manual - part 538

Special Service Tools

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

KV48103404
(

—

)

Torque adapter

NT236

Measuring pinion rotating torque

ST27180001
(J25726-A)
Steering wheel puller

NT544

Removing steering wheel

ST29020001
(J24319-01)
Pitman arm puller

NT694

Removing ball joint

a: 34 mm (1.34 in)
b: 6.5 mm (0.256 in)
c: 61.5 mm (2.421 in) radius

KV48103500
(J26357 and J26357-10)
Pressure gauge

NT547

Measuring oil pressure

KV48102500
(J33914)
Pressure gauge adapter

NT542

Measuring oil pressure

ST3127S000
(See J25765-A)

q

1

GG91030000

(J25765-A)
Torque wrench

q

2

HT62940000

(

—

)

Socket adapter

q

3

HT62900000

(

—

)

Socket adapter

NT541

Measuring turning torque

KV48104400
(

—

)

Rack seal ring reformer

NT550

Reforming teflon ring

a: 50 mm (1.97 in) dia.
b: 36 mm (1.42 in) dia.
c: 100 mm (3.94 in)

GI

MA

EM

LC

EC

FE

AT

PD

FA

RA

BR

RS

BT

HA

EL

IDX

PRECAUTIONS AND PREPARATION

ST-3

Tool number
(Kent-Moore No.)
Tool name

Description

(J-44372)
Spring gauge

LST024

Measuring steering wheel turning force

(J-44183-A)
Spring gauge

LST025

Measuring rack sliding force

Commercial Service Tools

Tool name

Description

Rear oil seal drift

NT063

Installing rear oil seal

a: 28 mm (1.10 in) dia.

Pinion oil seal drift

NT063

Installing pinion oil seal

a: 35 mm (1.38 in) dia.

Oil pump attachment

NT179

Disassembling and assembling oil pump

Unit: mm (in)

PRECAUTIONS AND PREPARATION

Special Service Tools (Cont’d)

ST-4

NVH Troubleshooting Chart

Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

Reference page

ST

-7

ST

-8

ST

-19

ST

-19

ST

-19

ST

-8

ST

-6

ST

-9

Refer

to

MA

section.

—

ST

-1

1

ST

-7

ST

-1

1

ST

-1

1

ST

-15

Refer

to

PD

section.

Refer

to

PD

section.

Refer

to

F

A

and

RA

sections.

Refer

to

F

A

section.

Refer

to

F

A

section.

Refer

to

RA

section.

Refer

to

BR

section.

Possible cause and
SUSPECTED PARTS

Fluid

level

Air

in

hydraulic

system

T

ie-rod

ball

joint

swinging

force

T

ie-rod

ball

joint

rotating

torque

T

ie-rod

ball

joint

end

play

Steering

gear

fluid

leakage

Steering

wheel

play

Steering

gear

rack

sliding

force

Drive

belt

looseness

Improper

steering

wheel

or

damage

Improper

installation

or

looseness

of

tilt

lock

lever

Mounting

rubber

deterioration

Steering

column

deformation

Improper

installation

or

looseness

of

steering

column

Steering

linkage

looseness

PROPELLER

SHAFT

DIFFERENTIAL

AXLE

AND

SUSPENSION

TIRES

ROAD

WHEEL

DRIVE

SHAFT

BRAKES

Symptom

STEERING

Noise

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Shake

X

X

X

X

X

X

X

X

X

Vibration

X

X

X

X

X

X

X

X

X

Shimmy

X

X

X

X

X

X

X

X

Judder

X

X

X

X

X

X

X: Applicable

GI

MA

EM

LC

EC

FE

AT

PD

FA

RA

BR

RS

BT

HA

EL

IDX

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

ST-5

SST489B

Checking Steering Wheel Play

I

With wheels in a straight-ahead position, check steering wheel
play.

Steering wheel play:

35 mm (1.38 in) or less

I

If it is not within specification, check the following for loose or
worn components.

Steering gear assembly
Steering column
Front suspension and axle

SST490BA

Checking Neutral Position on Steering Wheel

Pre-checking

I

Make sure that wheel alignment is correct.

Wheel alignment:

Refer to FA section, SDS.

I

Verify that the steering gear is centered before removing the
steering wheel.

Checking

1.

Check that the steering wheel is in the neutral position when
driving straight ahead.

2.

If it is not in the neutral position, remove the steering wheel and
reinstall it correctly.

3.

If the neutral position is between two teeth, loosen tie-rods lock
nuts. Turn the tie-rods by the same amount in opposite direc-
tions on both left and right sides.

SMA127

Front Wheel Turning Angle

1.

Rotate steering wheel all the way right and left; measure turn-
ing angle.

Turning angle of full turns:

Refer to FA section, SDS.

SST307BA

2.

If it is not within specification, check rack stroke.

Rack stroke “S”:

Refer to SDS (ST-38).

ON-VEHICLE SERVICE

ST-6