Infiniti FX35 / FX45. Manual — part 862
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PR-3
< SERVICE INFORMATION >
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000001327465
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
Front
—
—
—
—
NVH in FFD an
d RF
D
se
ct
ion
NVH in F
AX, RAX
, FS
U,
an
d RS
U
se
ct
ion
NVH in WT
se
ct
io
n
NVH in WT
se
ct
io
n
NVH in RAX
section
NVH in BR section
NVH in PS
section
Rear
—
—
Possible cause and SUSPECTED PARTS
Un
ev
en
rot
a
ti
ng
to
rqu
e
Cen
ter bea
rin
g
i
m
p
rop
er ins
ta
lla
tio
n
Exc
e
s
s
iv
e
c
e
n
ter
be
arin
g
ax
ia
l e
n
d
pl
ay
Ce
nt
e
r
b
e
a
ri
ng
mou
n
ti
n
g
(in
su
lat
or) c
rack
s,
da
ma
ge
or de
te
ri
ora
tio
n
Ex
ce
ssi
ve
jo
in
t an
gl
e
Ro
tat
ion
i
m
ba
la
nc
e
Ex
ce
ssi
ve
run
o
u
t
DIFFERE
N
T
IAL
AXLE
AND SUSPE
N
S
ION
TIRE
ROA
D
WHEEL
DR
IVE SHAF
T
BRAKE
STEERI
N
G
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
Vibration
×
×
×
×
×
×
×
×
×
×
×
PR-4
< SERVICE INFORMATION >
FRONT PROPELLER SHAFT
FRONT PROPELLER SHAFT
On-Vehicle Inspection
INFOID:0000000001327466
APPEARANCE AND NOISE INSPECTION
Check the propeller shaft tube surface for dents or cracks. If damaged, replace propeller shaft assembly.
PROPELLER SHAFT VIBRATION
If vibration is present at high speed, inspect propeller shaft runout first.
1.
Measure propeller shaft runout at runout measuring point by
rotating final drive companion flange with hands. For measuring
point, refer to "Propeller Shaft Runout Measuring Point".
2.
If runout still exceeds specifications, separate propeller shaft at
final drive companion flange; then rotate companion flange 90,
180, 270 degrees and install propeller shaft.
3.
Check runout again. If runout still exceeds specifications,
replace propeller shaft assembly.
4.
Check the vibration by driving vehicle.
Propeller Shaft Runout Measuring Point
Propeller shaft runout measuring point (Point “ ”)
Component
INFOID:0000000001327467
Removal and Installation
INFOID:0000000001327468
REMOVAL
1.
Remove the front and rear engine undercover with a power tool.
2.
Remove the front cross bar with a power tool. Refer to
3.
Remove the exhaust front tube bracket with a power tool. Refer to
4.
Disconnect the heated oxygen sensor harness connector.
Propeller shaft runout limit
: 0.8 mm (0.031 in)
SDIA1759E
Dimension
A: 381.5 mm (15.01 in)
PDIA0768J
1.
Propeller shaft assembly
2.
O-ring
Refer to
, for the symbols in the figure.
PDIA1215E
FRONT PROPELLER SHAFT
PR-5
< SERVICE INFORMATION >
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5.
Remove the exhaust front tube mounting nuts with a power tool. Refer to
.
6.
Remove the right bank three way catalyst with a power tool. Refer to
EM-26, "Removal and Installation"
(VQ35DE),
EM-179, "Removal and Installation"
7.
Remove the power steering piping mounting bolts. Refer to
.
8.
Remove the power steering gear box fixing bolts to secure work-
ing area for removal of propeller shaft. Refer to
.
CAUTION:
Be careful not to damage the steering gear box piping dur-
ing removal.
9.
Put matching marks onto propeller shaft flange yoke and final
drive companion flange.
CAUTION:
For matching mark, use paint. Never damage propeller shaft
flange and companion flange.
10. Remove the propeller shaft fixing bolts.
11. Set the transmission jack at the transfer, remove rear engine
mounting bolts, and then lower transmission jack about 40 - 50
mm (0.16 - 0.21 in).
12. Remove propeller shaft from the front final drive and transfer.
INSPECTION
• Inspect propeller shaft runout at measuring point. If runout
exceeds specifications, replace propeller shaft assembly. For mea-
suring point, refer to
.
SDIA1516E
SDIA1517E
SDIA1518E
Propeller shaft runout limit
: 0.8 mm (0.031 in)
SPD106
PR-6
< SERVICE INFORMATION >
FRONT PROPELLER SHAFT
• As shown in the figure, while fixing yoke on one side, check axial
play of joint. If outside the standard, replace propeller shaft assem-
bly.
• Check propeller shaft for bend and damage. If damage is detected,
replace propeller shaft assembly.
CAUTION:
Never disassemble joints.
INSTALLATION
Note the following, install in the reverse order of removal.
• Align matching marks to install propeller shaft to final drive com-
panion flange, and then tighten to specified torque. Refer to
.
CAUTION:
Never reuse the bolts.
• After assembly, perform a driving test to check propeller shaft
vibration. If vibration occurred, separate propeller shaft from final
drive or transfer. Reinstall companion flange after rotating it by 90,
180, 270 degrees. Then perform driving test and check propeller
shaft vibration again at each point.
Journal axial play
: 0 mm (0 in)
PDA0005D
SDIA1517E
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