Nissan Pathfinder (2009 year). Manual — part 244
DLN-434
< PRECAUTION >
[REAR FINAL DRIVE: R230 (4WD)]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Servicing Rear Final Drive
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• Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic
operations.
• Check for the correct installation status prior to removal or disassembly. When matching marks are required,
be certain they do not interfere with the function of the parts they are applied to.
• Overhaul should be done in a clean work area, a dust proof area is recommended.
• Before disassembly, completely remove sand and mud from the exterior of the unit, preventing them from
entering into the unit during disassembly or assembly.
• Always use shop paper for cleaning the inside of components.
• Avoid using cotton gloves or a shop cloth to prevent the entering of lint.
• Check appearance of the disassembled parts for damage, deformation, and abnormal wear. Replace them
with new ones if necessary.
• Gaskets, seals and O-rings should be replaced any time the unit is disassembled.
• Clean and flush the parts sufficiently and blow them dry.
• Be careful not to damage sliding surfaces and mating surfaces.
• When applying sealant, remove the old sealant from the mating surface; then remove any moisture, oil, and
foreign materials from the application and mating surfaces.
• In principle, tighten nuts or bolts gradually in several steps working diagonally from inside to outside. If a
tightening sequence is specified, observe it.
• During assembly, observe the specified tightening torque.
• Add new differential gear oil, petroleum jelly, or multi-purpose grease, as specified.
2009 Pathfinder
PREPARATION
DLN-435
< PREPARATION >
[REAR FINAL DRIVE: R230 (4WD)]
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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.
Tool number
(Kent-Moore No.)
Tool name
Description
KV40104000
(
—
)
Flange wrench
Removing and installing drive pinion lock nut
a: 85 mm (3.35 in) dia.
b: 65 mm (2.56 in) dia.
KV381054S0
(J-34286)
Puller
Removing front oil seal
ST15310000
(J-25640-B)
Drift
Installing oil seal
a: 84 mm (3.31 in) dia.
b: 96 mm (3.78 in) dia.
c: 8 mm (0.31 in) dia.
d: 20 mm (0.79 in)
ST36230000
(J-25840-A)
Sliding hammer
Removing side flange
KV40104100
(
—
)
Attachment
Removing side flange
KV38100200
(J-26233)
Drift
Installing side oil seal
a: 65 mm (2.56 in) dia.
b: 49 mm (1.93 in) dia.
NT659
ZZA0601D
NT607
ZZA0803D
ZZA0804D
ZZA1143D
2009 Pathfinder
DLN-436
< PREPARATION >
[REAR FINAL DRIVE: R230 (4WD)]
PREPARATION
KV38107900
(J-39352)
Protector
Installing side flange
ST35325000
(
—
)
Drift bar
Installing drive pinion outer race
ST30621000
(J-25742-5)
Drift
Installing drive pinion outer race
a: 79 mm (3.11 in) dia.
b: 59 mm (2.32 in) dia.
SR33081000
(
—
)
Adapter
Installing side bearing race
a: 43 mm (1.69 in) dia.
b: 33.5 mm (1.319 in) dia.
ST30022000
(
—
)
Inserter
Installing drive pinion inner race
a: 110 mm (4.33 in) dia.
b: 46 mm (1.81 in) dia.
KV38100800
(J-25604-01)
Attachment
Securing unit assembly
a: 541 mm (21.30 in)
b: 200 mm (7.87 in)
Tool number
(Kent-Moore No.)
Tool name
Description
S-NT129
ZZA1140D
NT073
NT431
ZZA0920D
SDIA0267E
2009 Pathfinder
PREPARATION
DLN-437
< PREPARATION >
[REAR FINAL DRIVE: R230 (4WD)]
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ST3127S000
(J-25765-A)
Preload gauge
1: GG91030000
(J-25765)
Torque wrench
2: HT62940000
(
—
)
Socket adapter (1/2
″
)
3: HT62900000
(
—
)
Socket adapter (3/8
″
)
Measuring drive pinion bearing preload torque
and total preload torque
KV10111100
(J-37228)
Seal cutter
Removing carrier cover
ST3306S001
(
—
)
Differential side bearing puller set
1: ST33051001
(J-22888-20)
Puller
2: ST33061000
(J-8107-2)
Base
Removing and installing side bearing inner
race
a: 28.5 mm (1.122 in) dia.
b: 38 mm (1.50 in) dia.
ST30031000
(J-22912-01)
Puller
Removing drive pinion rear bearing inner race
ST35271000
(
—
)
Drift
Installing oil seal
a: 72 mm (2.83 in) dia.
b: 63 mm (2.48 in) dia.
HT72400000
(
—
)
Slide hammer
Removing differential case assembly
Tool number
(Kent-Moore No.)
Tool name
Description
NT124
S-NT046
NT072
ZZA0700D
ZZA0837D
S-NT125
2009 Pathfinder
DLN-438
< PREPARATION >
[REAR FINAL DRIVE: R230 (4WD)]
PREPARATION
Commercial Service Tool
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—
(J-8129)
Spring gauge
Measuring turning torque
KV10112100
(BT-8653-A)
Angle wrench
Tightening bolts for drive gear
Tool number
(Kent-Moore No.)
Tool name
Description
NT127
NT014
Tool name
Description
Spacer
Installing drive pinion front bearing inner race
a: 60 mm (2.36 in) dia.
b: 36 mm (1.42 in) dia.
c: 30 mm (1.18 in)
Power tool
Loosening nuts and bolts
ZZA1133D
PBIC0190E
2009 Pathfinder
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
DLN-439
< FUNCTION DIAGNOSIS >
[REAR FINAL DRIVE: R230 (4WD)]
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FUNCTION 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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o
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rou
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Gea
r co
nt
ac
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m
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er
T
o
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u
rf
ac
es
w
o
rn
Ba
ck
la
sh
in
co
rrec
t
Co
mp
an
io
n f
lan
ge
e
x
c
e
s
s
iv
e
run
o
u
t
Gea
r oi
l i
m
p
rop
er
PR
OP
EL
LE
R
S
H
A
F
T
REA
R
AXLE
REA
R
SUSPENSI
ON
TI
RE
S
ROAD W
H
EEL
DRIV
E
SHAFT
BR
AK
E
S
S
T
EERING
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
2009 Pathfinder
DLN-440
< FUNCTION DIAGNOSIS >
[REAR FINAL DRIVE: R230 (4WD)]
DESCRIPTION
DESCRIPTION
Cross-Sectional View
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1.
Side flange
2.
Pinion mate gear
3.
Drive gear
4.
Pinion mate shaft
5.
Differential case
6.
Side bearing
7.
Drive pinion
8.
Drive pinion front bearing
9.
Companion flange
10. Collapsible spacer
11.
Drive pinion rear bearing
12. Side gear
WDIA0119E
2009 Pathfinder
DIFFERENTIAL GEAR OIL
DLN-441
< ON-VEHICLE MAINTENANCE >
[REAR FINAL DRIVE: R230 (4WD)]
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ON-VEHICLE MAINTENANCE
DIFFERENTIAL GEAR OIL
Changing Differential Gear Oil
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DRAINING
1.
Stop the engine.
2.
Remove the drain plug and gasket from the rear final drive
assembly to drain the differential gear oil.
3.
Install the drain plug with a new gasket to the rear final drive
assembly. Tighten to the specified torque. Refer to
.
CAUTION:
Do not reuse gasket.
FILLING
1.
Remove the filler plug and gasket 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 a new gasket on it to the rear final drive
assembly. Tighten to the specified torque. Refer to
.
CAUTION:
Do not reuse gasket.
Checking Differential Gear Oil
INFOID:0000000003937471
OIL LEAKAGE AND OIL 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 a new gasket on it to the rear final drive
assembly. Tighten to the specified torque. Refer to
.
CAUTION:
Do not reuse gasket.
LLIA0068E
Differential gear oil
grade and capacity
LLIA0068E
LLIA0068E
2009 Pathfinder
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