Infiniti G37 Coupe. Manual — part 1063
RSU-2
< SYMPTOM DIAGNOSIS >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
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Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
—
—
—
NVH in DLN section.
NVH in DLN section.
NVH
in
RAX and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in RAX section.
NVH in BR section.
NV
H
in
S
T
s
e
cti
on
.
Possible cause and SUSPECTED PARTS
Imp
rop
er i
ns
ta
lla
ti
o
n,
lo
os
en
es
s
Sh
oc
k ab
so
rbe
r
de
form
a
tio
n, dam
a
ge or
d
e
flec
ti
on
Bu
sh
in
g o
r m
o
u
n
ti
ng
de
teri
ora
tio
n
Part
s interf
erence
S
p
rin
g
f
a
ti
gu
e
Su
sp
en
si
on
lo
os
en
es
s
In
co
rrec
t wh
ee
l a
lig
nm
en
t
S
tab
ili
ze
r ba
r fa
tig
u
e
PROPELLER S
H
AFT
DIFF
ERENTIAL
REAR A
X
LE
AND REAR SUSPE
NSION
TI
RE
ROAD WHEE
L
DRIVE SHAFT
BRAKE
STE
E
RING
Symptom
REAR SUSPENSION
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
×
×
×
×
Vibration
×
×
×
×
×
×
×
×
×
×
Shimmy
×
×
×
×
×
×
×
×
×
×
Judder
×
×
×
×
×
×
×
×
Poor quality ride or
handling
×
×
×
×
×
×
×
×
×
×
PRECAUTIONS
RSU-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precautions for Suspension
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CAUTION:
• When installing rubber bushings, the final tightening must be carried out under unladen conditions
with tires on ground. Oil might shorten the life of rubber bushings. Be sure to wipe off any spilled oil.
- Unladen conditions mean that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools
and mats are in designated positions.
• After servicing suspension parts, be sure to check wheel alignment.
• Self-lock nuts are not reusable. Always use new ones when installing. Since new self-lock nuts are
pre-oiled, tighten as they are.
RSU-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tool
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The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tool
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Tool number
(Kent-Moore No.)
Tool name
Description
ST3127S000
(J-25765-A)
Preload gauge
Measuring rotating torque of ball joint
ZZA0806D
Tool name
Description
Power tool
Loosening bolts and nuts
PBIC0190E
REAR SUSPENSION ASSEMBLY
RSU-5
< ON-VEHICLE MAINTENANCE >
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ON-VEHICLE MAINTENANCE
REAR SUSPENSION ASSEMBLY
Inspection and Adjustment
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MOUNTING INSPECTION
Make sure the mounting conditions (looseness, backlash) of each component and component conditions
(wear, damage) are normal.
BALL JOINT AXIAL END PLAY
Measure axial end play by placing and moving up/down with an iron bar or equivalent between suspension
arm and axle assembly.
CAUTION:
Be careful not to damage ball joint boot.
SHOCK ABSORBER
Check for oil leakage, damage and replace if malfunction is detected.
Standard
End play
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