Infiniti M45 (Y34). Manual — part 701
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PR-3
C
E
F
G
H
I
J
K
L
M
A
B
PR
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PFP:00003
NVH Troubleshooting Chart
ADS0001V
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
—
Re
fe
r to
f
o
r det
ai
ls
.
—
—
—
Re
fe
r to
f
o
r det
ai
ls
.
—
Re
fe
r
to
NVH
in
RFD s
e
c
tio
n
f
o
r d
e
ta
ils
.
Re
fe
r to
NVH in
F
AX,
RAX,
FSU, a
n
d
RSU s
e
c
ti
o
n
fo
r d
e
ta
ils
.
N
V
H
in
t
o
W
T
s
e
c
tio
n
f
o
r d
e
ta
ils
.
NVH i
n
W
T
s
e
c
tio
n
f
o
r d
e
ta
ils
.
Possible cause and SUSPECTED PARTS
U
n
e
v
en r
o
ta
ti
on t
o
rq
u
e
C
e
n
ter
b
ear
in
g i
m
pr
oper
i
n
s
ta
lla
ti
o
n
Exc
e
ss
iv
e
c
ent
er
be
ar
ing ax
ia
l end
pl
ay
C
e
n
ter
b
ear
in
g m
o
unt
in
g (
insul
at
or
)
cr
a
cks
,
dam
ag
e o
r
det
er
io
ra
ti
on
Ex
c
e
s
s
iv
e
jo
in
t a
n
g
le
R
o
ta
ti
o
n
i
m
bal
an
ce
Exc
e
ss
iv
e
r
uno
ut
DIFFERENTIAL
AXLE
AND
SUSPENSION
TIRES
ROAD W
H
EEL
DRIVE SHAF
T
BRAKES
STEERING
Symptom
PROPELLER
SHAFT
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
Vibration
×
×
×
×
×
×
×
×
×
×
×
PR-4
REAR PROPELLER SHAFT
REAR PROPELLER SHAFT
PFP:37000
On-Vehicle Service
ADS0001W
PROPELLER SHAFT VIBRATION
CAUTION:
If vibration is present at high speed, check mounting between propeller shaft and companion flange.
If vibration is present at high speed, inspect propeller shaft runout first.
1.
Measure propeller shaft runout at several points by rotating final
drive companion flange with hands.
Propeller shaft runout measuring points:
Unit: mm (in)
2.
If runout still exceeds specifications, disconnect propeller shaft at final drive companion flange: then rotate
companion flange 60, 120, 180, 240, 300 degrees and reconnect propeller shaft.
3.
Check runout again. If runout still exceeds specifications, replace propeller shaft assembly.
4.
Perform driving test to check.
5.
If the runout exceeds the service limit, do the following:
●
Remove the propeller shaft from the final drive companion flange.
●
Turn the propeller shaft 60, 120, 180, 240, 300 degrees and reinstall the propeller shaft to the compan-
ion flange, then measure the runout again.
●
If the runout still exceeds the service limit, replace the propeller shaft assembly.
●
Check the vibration by driving the vehicle.
APPEARANCE AND NOISE INSPECTION
●
Inspect propeller shaft tube surface for dents or cracks. If damaged, replace propeller shaft assembly.
●
If center bearing is noisy or damaged, replace propeller shaft assembly.
Runout limit
:0.6 mm (0.024 in) or less
SDIA1958E
Distance
A
B
C
A/T
162 (6.38)
160 (6.30)
185 (7.28)
SDIA1367E
REAR PROPELLER SHAFT
PR-5
C
E
F
G
H
I
J
K
L
M
A
B
PR
Removal and Installation
ADS0001X
REMOVAL
1.
Move A/T select lever to N range position and release the parking brake.
2.
Remove exhaust front tube and center muffler. Refer to
3.
Remove floor reinforcement.
4.
Loosen center bearing bracket fixing nuts with power tool.
CAUTION:
Do not remove center bearing bracket fixing nuts.
1.
Floor reinforcement
2.
1st propeller shaft
3.
Center bearing mounting bracket
(Lower)
4.
2nd propeller shaft
5.
Clip
6.
Center bearing mounting bracket
(Upper)
PDIA0881E
SDIA1000E
SDIA1001E
PR-6
REAR PROPELLER SHAFT
5.
Put matching marks on flange and rear propeller shaft. (A/T side
and final drive side)
6.
Remove propeller shaft fixing bolts. (A/T side and final drive
side)
7.
Remove center bearing bracket fixing nuts.
8.
Remove propeller shaft from vehicle.
INSPECTION
●
Inspect propeller shaft runout. If runout exceeds specifications,
replace propeller shaft assembly.
Propeller shaft runout measuring points:
Unit: mm (in)
INSTALLATION
1.
Paying attention to following items, install in the reverse order of removal.
a.
Install the propeller shaft onto the rear final drive companion
flange while aligning the matching marks that are marked during
removal.
SDIA1522E
Runout limit
: 0.6 mm (0.024 in) or less
SDIA2071E
Distance
A
B
C
A/T
162 (6.38)
160 (6.30)
185 (7.28)
SDIA1367E
SDIA1522E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст