Infiniti M45 (Y34). Manual - part 554

PREPARATION

FSU-3

C

D

F

G

H

I

J

K

L

M

A

B

FSU

PREPARATION

PFP:00002

Special Service Tools

AES0008D

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

KV991040S0
(        —        )
CCK gauge attachment
1. Plate
2. Guide bolt
3. Nuts
4. Springs
5. Center plate
6. KV99104020 Adapter A
 a: 72 mm (2.83 in) dia.
7. KV99104030 Adapter B
 b: 65 mm (2.56 in) dia.
8. KV99104040 Adapter C
 c: 57 mm (2.24 in) dia.
9. KV99104050 Adapter D
 d: 53.4 mm (2.102 in) dia.

Measuring wheel alignment

HT72520000
(J 25730-A)
Ball joint remover
a: 33 mm (1.30 in)
b: 50 mm (1.97 in)
r: 11.5 mm (0.453 in)

Removing steering outer socket

ST35652000
(        —       )
Strut attachment

Disassembling and assembling 
strut assembly

ST3127 S000
(See J25742-1)
Preload gauge
1. GC91030000
              Torque wrench (J25765-A)
2. HT62940000 (  —  )
               Socket adapter (1/2

″

)

3. HT62900000 (  —  )
               Socket adapter (3/8

″

)

Measuring sliding torque of ball 
joint

S-NT498

NT546

ZZA0807D

NT124

FSU-4

PREPARATION

Commercial Service Tools

AES0008E

Tool name

Description

Spring compressor

Removing coil spring

Power tool

●

Removing wheel nuts

●

Removing brake caliper assembly

●

Removing stabilizer assembly

●

Removing tower bar

●

Removing undercover

S-NT717

PBIC0190E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

FSU-5

C

D

F

G

H

I

J

K

L

M

A

B

FSU

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

NVH Troubleshooting Chart

AES0008F

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

×

: Applicable

Reference page

FSU-

8

FSU-

10

—

—

—

FSU-

8

FSU-

6

FSU-

14

 

NVH 

in

 PR s

e

c

tio

n

NVH 

in

 RFD s

e

c

tio

n

.

N

V

H

 i

n

 R

AX and R

S

U

 sect

ion.

NVH in

 W

T

 s

e

c

ti

o

n

.

NVH in

 W

T

 s

e

c

ti

o

n

.

NVH 

in

 RAX s

e

c

tio

n

.

NVH 

in

 BR s

e

c

tio

n

.

NVH 

in

 PS s

e

c

tio

n

.

Possible cause and SUSPECTED PARTS

Im

pr

o

per

 i

n

st

al

la

ti

on

, 

lo

osen

ess

S

tr

u

t def

or

m

a

ti

on,

 dam

age

 or

 def

le

ct

io

n

Bus

h

ing or

 m

oun

ti

ng det

er

io

ra

ti

on

P

a

rt

s

 in

te

rf

e

re

n

c

e

Spr

ing f

a

ti

gue

Sus

pens

io

n l

o

o

s

ene

ss

In

co

rr

ect

 w

h

e

e

l a

lignm

en

t

S

ta

b

ili

z

er

 bar

 f

a

ti

g

u

e

PROPELL

E

R SHAF

T

DIFFERENTIAL

REAR AXLE AND R

E

AR 

SUSPENSION

TIRES

ROAD W

H

EEL

D

R

IV

E

 SH

AF

T

BRAKES

STEERING

Symptom

FRONT SUSPENSION

Noise

× ×

×

×

×

×

×

× ×

×

×

× ×

×

Shake

× ×

×

×

×

×

×

×

×

× ×

×

Vibration

× ×

×

×

×

×

×

×

×

×

Shimmy

× ×

×

×

×

×

×

×

×

×

Judder

× ×

×

×

×

×

×

×

Poor quality ride or han-
dling

× ×

×

×

×

× ×

×

×

×

FSU-6

FRONT SUSPENSION ASSEMBLY

FRONT SUSPENSION ASSEMBLY

PFP:54010

On-Vehicle Inspection and Service

AES0008H

Check that the mounting conditions (looseness, back lash) of each component and component statues (wear,
damage) are normal.

INSPECTION OF SUSPENSION ARM BALL JOINT END PLAY

1.

Set front wheels in a straight-ahead position. Do not depress brake pedal.

2.

Measure axial end play by installing and moving up/down with an iron pry bar or something similar
between suspension arm and steering knuckle.

CAUTION:

Be careful not to damage ball joint boot.

STRUT INSPECTION

●

Check strut for oil leakage, damage and replace if necessary.

Wheel Alignment Inspection

AES0008I

DESCRIPTION

●

Measure wheel alignment under unladen conditions. “Unladen conditions” means that fuel, coolant, and
lubricant are full. Spare tire, jack, hand tools and mats in designated positions.

PRELIMINARY INSPECTION

1.

Check tires for improper air pressure and wear.

2.

Check road wheels for runout.

3.

Check wheel bearing axial end play. 

4.

Check suspension arm ball joint axial end play.

5.

Check strut operation.

6.

Check each mounting point of axle and suspension for looseness and deformation.

7.

Check each link, rod and member for cracks, deformation and other damage.

8.

Check vehicle posture.

INSPECTION OF CAMBER, CASTER AND KINGPIN INCLINATION ANGLES.

●

Camber, caster, kingpin inclination angles cannot be adjusted.

●

Before inspection, mount front wheels onto turning radius gauge. Mount rear wheels onto a stand that has
same height so vehicle will remain horizontal.

Using a CCK Gauge

1.

Remove wheel nuts (3), and install a guide bolt (special service
tool) to hub bolt.

2.

Screw adapter (special service tool) into plate body (special ser-
vice tool) until it contacts body tightly.

3.

Screw center plate (special service tool) into plate body (special
service tool).

4.

Insert plate (special service tool) on guide bolt (special service
tool). Put spring in, and then evenly screw in guide bolt nut (spe-
cial service tool). When fastening guide bolt nut, do not com-
pletely compress spring.

Standard value

Axial end play

: 0 mm (0 in)

SEIA0240E