Nissan Pathfinder (2012 year). Instruction — part 236
PREPARATION
DLN-453
< PREPARATION >
[REAR FINAL DRIVE: R230]
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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
—
(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
S-NT046
NT072
ZZA0700D
ZZA0837D
S-NT125
NT127
NT014
August 2012
2012 Pathfinder
DLN-454
< PREPARATION >
[REAR FINAL DRIVE: R230]
PREPARATION
Commercial Service Tool
INFOID:0000000007357658
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, screws and bolts
ZZA1133D
PIIB1407E
August 2012
2012 Pathfinder
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
DLN-455
< SYSTEM DESCRIPTION >
[REAR FINAL DRIVE: R230]
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SYSTEM DESCRIPTION
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000007357659
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
o
ot
h rou
g
h
Ge
ar co
nt
act
im
pro
p
er
To
o
th su
rfac
es
wo
rn
Ba
ck
la
sh
in
co
rrec
t
Com
pa
ni
on
fl
an
ge ex
ce
ss
iv
e run
ou
t
Ge
ar oi
l im
pro
p
er
PROPELLER S
H
AFT
REAR A
XLE
REAR S
U
S
PENSION
TI
RE
S
ROAD WHEEL
DRIVE SHAFT
BRAKE
S
STE
E
RING
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
August 2012
2012 Pathfinder
DLN-456
< SYSTEM DESCRIPTION >
[REAR FINAL DRIVE: R230]
DESCRIPTION
DESCRIPTION
Cross-Sectional View
INFOID:0000000007357660
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
August 2012
2012 Pathfinder
DIFFERENTIAL GEAR OIL
DLN-457
< PERIODIC MAINTENANCE >
[REAR FINAL DRIVE: R230]
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PERIODIC MAINTENANCE
DIFFERENTIAL GEAR OIL
Changing Differential Gear Oil
INFOID:0000000007357661
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:0000000007357662
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
: Refer to
AND CANADA : Fluids and
Lubricants"
LLIA0068E
LLIA0068E
August 2012
2012 Pathfinder
DLN-458
< REMOVAL AND INSTALLATION >
[REAR FINAL DRIVE: R230]
FRONT OIL SEAL
REMOVAL AND INSTALLATION
FRONT OIL SEAL
Removal and Installation
INFOID:0000000007357663
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Remove the drive shafts from the rear final drive assembly and support them using suitable wire. Refer to
RAX-8, "Removal and Installation"
2. Remove the side flanges and side oil seals. Refer to
DLN-460, "Removal and Installation"
3. Remove the rear propeller shaft. Refer to
DLN-340, "Removal and Installation"
4. Measure the total preload torque. Refer to
DLN-483, "Inspection and Adjustment"
.
NOTE:
Record the total preload torque measurement.
5. Remove the drive pinion lock nut using suitable tool.
6. 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.
7. Remove the companion flange using suitable tool.
8. Remove the front oil seal using Tool.
INSTALLATION
SDIA1142E
SDIA1054E
Tool number
: ST33290001 (J-34286)
SDIA0485E
August 2012
2012 Pathfinder
FRONT OIL SEAL
DLN-459
< REMOVAL AND INSTALLATION >
[REAR FINAL DRIVE: R230]
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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 of the new front oil
seal.
2. Install the companion flange to the drive pinion while aligning the matching marks.
3. Apply anti-corrosive oil to the threads of the drive pinion and the
seating surface of the new drive pinion lock nut. Then adjust the
drive pinion lock nut tightening torque using suitable tool (A),
and check the total preload 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.
• 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
.
• 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-467, "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.
4. Installation of the remaining components is in the reverse order of removal.
CAUTION:
Check the differential gear oil level after installation. Refer to
DLN-457, "Checking Differential Gear
.
Tool number
: ST15310000 ( — )
PDIA0565E
Tool number
(B): ST3127S000 (J-25765-A)
Total preload torque: Refer to
.
WDIA0380E
August 2012
2012 Pathfinder
DLN-460
< REMOVAL AND INSTALLATION >
[REAR FINAL DRIVE: R230]
SIDE OIL SEAL
SIDE OIL SEAL
Removal and Installation
INFOID:0000000007357664
REMOVAL
1. Remove the drive shaft from the rear final drive assembly. Refer to
RAX-8, "Removal and Installation"
.
2. Remove the side flange using Tools.
3. Remove the side oil seal using suitable tool.
CAUTION:
Do not to damage gear carrier.
INSTALLATION
1. Apply multi-purpose grease to the lips of the new side oil seal.
Then drive the new side oil seal in evenly until it becomes flush
with the gear carrier using Tool.
CAUTION:
• Do not reuse side oil seal.
• Do not incline the new side oil seal when installing.
• Apply multi-purpose grease to the lips of the new side oil
seal.
2. Install the side flange using Tool.
a. Install the Tool to the side oil seal as shown.
b. Insert the side flange until the serrated part of the side flange
has engaged the serrated part of the side gear and remove the
Tool.
c.
Drive in the side flange using suitable tool.
NOTE:
Installation is completed when the driving sound of the side
flange turns into a sound which seems to affect the whole rear
final drive assembly.
3. Installation of the remaining components is in the reverse order of removal.
CAUTION:
Tool numbers
(A): KV40104100 ( — )
(B): ST36230000 (J-25840-A)
WDIA0115E
LDIA0109E
Tool number
: ST35271000 (J-26091)
LDIA0111E
Tool number
: KV38107900 (J-39352)
SDIA0822E
August 2012
2012 Pathfinder
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