Nissan Frontier D40. Instruction — part 307
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
DLN-249
< SYMPTOM DIAGNOSIS >
[REAR FINAL DRIVE: M226 ]
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SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
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Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
—
—
,
Possible cause and SUSPECTED PARTS
Ge
ar t
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ot
h ro
ug
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Gea
r co
nt
ac
t im
pro
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T
o
ot
h s
u
rf
ac
es
worn
Bac
k
las
h inc
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rr
ec
t
Com
p
a
n
ion
fla
n
g
e
e
x
c
e
ss
iv
e ru
no
ut
Gea
r oi
l im
p
rop
er
PROPELLER SHAF
T
AXLE AND SUSPE
NSION
TIRES
ROA
D
WHEEL
AXLE SHAFT
BRAKES
STEERI
N
G
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
DLN-250
< ON-VEHICLE MAINTENANCE >
[REAR FINAL DRIVE: M226 ]
DIFFERENTIAL GEAR OIL
ON-VEHICLE MAINTENANCE
DIFFERENTIAL GEAR OIL
Changing Differential Gear Oil
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DRAINING
1.
Stop engine.
2.
Remove the drain plug from the rear final drive assembly to
drain the differential gear oil.
3.
Install the drain plug with sealant applied on the threads to the
rear final drive assembly. Tighten to the specified torque. Refer
to
DLN-255, "Disassembly and Assembly"
.
• Use High Performance Thread Sealant or equivalent. Refer to
GI-22, "Recommended Chemical Products and Sealants"
.
FILLING
1.
Remove the filler plug from the rear final drive assembly.
2.
Fill the rear final drive assembly with new differential gear oil
until the level reaches the specified level near the filler plug hole.
3.
Install the filler plug with sealant applied on the threads to the
rear final drive assembly. Tighten to the specified torque. Refer
to
DLN-255, "Disassembly and Assembly"
.
• Use High Performance Thread Sealant or equivalent. Refer to
GI-22, "Recommended Chemical Products and Sealants"
.
Checking Differential Gear Oil
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DIFFERENTIAL GEAR OIL LEAKAGE AND LEVEL
1.
Make sure that differential gear oil is not leaking from the rear final drive assembly or around it.
2.
Check the differential gear oil level from the filler plug hole as
shown.
CAUTION:
Do not start engine while checking differential gear oil level.
3.
Install the filler plug with sealant applied on the threads to the
rear final drive assembly. Tighten to the specified torque. Refer
to
DLN-255, "Disassembly and Assembly"
.
• Use High Performance Thread Sealant or equivalent. Refer to
GI-22, "Recommended Chemical Products and Sealants"
.
LDIA0183E
Differential gear oil
grade and capacity
: Refer to
America: Fluids and Lubri-
cants"
or
.
LDIA0127E
LDIA0127E
FRONT OIL SEAL
DLN-251
< ON-VEHICLE REPAIR >
[REAR FINAL DRIVE: M226 ]
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ON-VEHICLE REPAIR
FRONT OIL SEAL
Removal and Installation
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REMOVAL
1.
Remove rear propeller shaft. Refer to
DLN-144, "Removal and Installation"
DLN-173, "Removal and Installation"
2.
Remove brake calipers and rotors. Refer to
BR-46, "Removal and Installation of Brake Caliper and Disc
3.
Measure the total preload torque. Refer to
DLN-264, "Inspection and Adjustment"
.
NOTE:
Record the total preload torque measurement.
4.
Remove the drive pinion lock nut using suitable tool.
5.
Put matching marks on the companion flange and drive pinion using paint.
CAUTION:
Use paint to make the matching marks. Do not damage the companion flange or drive pinion.
6.
Remove the companion flange using suitable tool.
7.
Remove oil seal/dust shield and discard.
CAUTION:
Do not reuse oil seal/dust shield
8.
Remove the front oil seal using Tool.
INSTALLATION
LDIA0122E
WDIA0249E
Tool number
: ST33290001 (J-34286)
LDIA0124E
DLN-252
< ON-VEHICLE REPAIR >
[REAR FINAL DRIVE: M226 ]
FRONT OIL SEAL
1.
Apply multi-purpose grease to the lips of the new front oil seal.
Then drive the new front oil seal in evenly until it becomes flush
with the gear carrier using Tool.
CAUTION:
• Do not reuse front oil seal.
• Do not incline the new front oil seal when installing.
• Apply multi-purpose grease to the lips and differential
gear oil to the circumference of the new front oil seal.
2.
Install oil seal/dust shield.
3.
Install the companion flange to the drive pinion while aligning the matching marks.
4.
Apply anti-corrosive oil to the threads of the drive pinion and the
seating surface of the new drive pinion lock nut and new drive
pinion lock nut washer. Then adjust the drive pinion lock nut
tightening torque using suitable tool A, and check the total pre-
load torque using Tool B.
• The total preload torque should be within the total preload
torque specification. When not replacing the collapsible
spacer, it should also be equal to the measurement taken dur-
ing removal plus an additional 0.56 N·m (0.06 Kg-m, 5 in-lb).
• If the total preload torque is low, tighten the drive pinion lock
nut in 6.8 N·m (0.69 Kg-m, 5ft-lb) increments until the total pre-
load torque is met.
CAUTION:
• Do not reuse drive pinion lock nut or drive pinion lock nut
washer.
• Apply anti-corrosive oil to the threads of the drive pinion
and the seating surface of the new drive pinion lock nut.
• Adjust the drive pinion lock nut tightening torque to the
lower limit first. Do not exceed the drive pinion lock nut specified torque. Refer to
• Do not loosen drive pinion lock nut to adjust the total preload torque. If the total preload torque
exceeds the specifications, replace the collapsible spacer and tighten it again to adjust. Refer to
DLN-255, "Disassembly and Assembly"
• After adjustment, rotate drive pinion back and forth 2 to 3 times to check for unusual noise, rota-
tion malfunction, and other malfunctions.
5.
Installation of the remaining components is in the reverse order of removal.
CAUTION:
Check the differential gear oil level after installation. Refer to
DLN-250, "Checking Differential Gear
.
Tool number
: ST15310000 (
—
)
LDIA0125E
Tool number
B: ST3127S000 (J-25765-A)
Total preload torque:
Refer to
.
WDIA0380E
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