Infiniti F50. Manual — part 559
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
FAX-3
C
E
F
G
H
I
J
K
L
M
A
B
FAX
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PFP:00003
NVH Troubleshooting Chart
EDS000WE
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
—
N
V
H
in
W
T
s
e
c
tio
n
.
N
V
H
in
W
T
s
e
c
tio
n
.
N
V
H in
PS s
e
c
tio
n
.
Possible cause and SUSPECTED PARTS
Im
pr
ope
r i
n
st
al
la
ti
on,
l
o
o
s
ene
ss
Par
ts
i
n
te
rf
er
enc
e
Wh
eel
b
ear
in
g d
a
m
a
ge
TIRES
ROAD W
H
EEL
STEERING
Symptom
FRONT AXLE
Noise
×
×
×
×
×
Shake
×
×
×
×
×
Vibration
×
×
×
×
Shimmy
×
×
×
×
×
Judder
×
×
×
×
Poor quality ride or handling
×
×
×
×
×
FAX-4
FRONT WHEEL HUB AND KNUCKLE
FRONT WHEEL HUB AND KNUCKLE
PFP:40202
On-Vehicle Inspection and Service
EDS000WF
Check that the mounting conditions (looseness, back lash) of each component and component status (wear,
damage) are normal.
WHEEL BEARING INSPECTION
●
Move wheel hub in the axial direction by hand. Check that there is no looseness of wheel bearing.
●
Rotate wheel hub and check that there is no unusual noise or other irregular conditions. If there are any
irregular conditions, replace wheel hub and bearing assembly.
Removal and Installation
EDS000WG
REMOVAL
1.
Remove tire with power tool.
2.
Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to
CAUTION:
Avoid depressing brake pedal while brake caliper is removed.
3.
Use a hub cap pliers to remove hub cap from wheel hub and bearing assembly.
4.
Pull up caulked area of lock nut with flat-bladed screwdriver.
5.
Remove disc rotor.
NOTE:
If it is difficult to remove disc rotor, remove it by tapping with rubber hammer.
6.
Remove lock nut, then remove wheel hub and bearing assembly from strut assembly.
Standard value
Axial end play limit
: 0.05 mm (0.002 in) or less
1.
Strut assembly
2.
Splash guard
3.
Sensor rotor
4.
Wheel hub and bearing assembly
5.
Lock nut
6.
Hub cap
SDIA1836E
FRONT WHEEL HUB AND KNUCKLE
FAX-5
C
E
F
G
H
I
J
K
L
M
A
B
FAX
●
When it is hard to remove wheel hub and bearing assembly
from strut assembly due to burnout, use a sliding hammer
(special service tool) for removal.
7.
Remove fixing screws of splash guard, then remove splash guard from strut assembly.
INSPECTION AFTER REMOVAL
Wheel hub
●
Check wheel hub for damage, seizure, and corrosion. Also check wheel hubs for cracks (using a die test
or other method). Replace if any irregular conditions are found.
Knuckle Spindle
●
Check knuckle spindle for damage and corrosion. If any irregular conditions are found, replace strut
assembly.
INSTALLATION
●
Refer to
FAX-4, "Removal and Installation"
for tightening torque. Tighten in the reverse order of removal.
CAUTION:
Refer to component parts location and do not reuse non-reusable parts.
●
Install hub cap using a suitable tool.
CAUTION:
Discard old hub cap; replace with new one.
●
After installation of lock nut, be sure to perform caulking. Refer
to figure for caulking procedure.
Tool number
: ST3623 0000 (J25840-A)
SDIA0279E
SDIA0280E
SDIA0964E
FAX-6
FRONT WHEEL HUB AND KNUCKLE
Disassembly and Assembly
EDS000WH
DISASSEMBLY
●
As shown in the figure, use a puller (suitable tool), drift (suitable
tool), and bearing replacer (suitable tool) to remove wheel hub
and bearing assembly from ABS sensor rotor.
ASSEMBLY
1.
Press-fit ABS sensor rotor into wheel hub and bearing assembly
using a drift (suitable tool).
CAUTION:
●
Discard old ABS sensor rotor; replace with new one.
●
ABS sensor rotor must be installed with its grooved side
facing inboard.
2.
Turn wheel hub several times in both directions to seat wheel
bearing correctly.
3.
Attach spring balance to wheel hub bolt as shown at figure and
pull it at a speed of 10
±
2 rpm to measure rotation torque.
SDIA1133E
SDIA1134E
Standard value
Rotation torque:
Less than 1.49 N·m (0.15 kg-m, 13 in-lb)
Spring balance indication:
Less than 26.1 N (2.66 kg, 5.87 lb)
SDIA0286E
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