checking oil NISSAN NAVARA 2005 Repair Manual Online

RFD-24
[WITH LIMITED SLIP DIFFERENTIAL]
REAR FINAL DRIVE ASSEMBLY
ASSEMBLY
Drive Pinion Assembly
1. Install the breather and then tighten to the specified torque. Refer toRFD-15, "COMPONENTS".
2. Press a drive pinion rear bearing outer race into axle housing
using suitable tool and Tool.
CAUTION:
Do not reuse drive pinion rear bearing.
3. Press drive pinion front bearing outer race into axle housing
using suitable tool.
CAUTION:
Do not reuse drive pinion front bearing.
4. Temporarily install drive pinion height adjusting washer.
When hypoid gear set has been replaced
lSelect drive pinion height adjusting washer. Refer toRFD-23,
"Drive Pinion Height Adjusting Washer".
When hypoid gear set has been reused
lTemporarily install the removed drive pinion height adjusting
washer or same thickness washer to drive pinion.
5. Install selected drive pinion height adjusting washer to drive pin-
ion, and press-fit drive pinion rear bearing inner race in it, using
a press and suitable tool.
CAUTION:
Do not reuse drive pinion rear bearing.
6. Apply gear oil to drive pinion rear bearing and drive pinion front
bearing.
7. Install drive pinion front bearing inner race in axle housing.
CAUTION:
Do not reuse drive pinion front bearing.
8. Install front bearing thrust washer to axle housing.
9. Perform checking and adjusting the tooth contact and backlash of the hypoid gear following the procedure
below.
a. Assemble the drive pinion assembly to the axle housing.
CAUTION:
Do not assemble a collapsible spacer.Tool number : ST30022000
PDIA1051E
PDIA1052E
SDIA1666E
PDIA1053E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
RFD-39
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
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RFD
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEDS003AM
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
´: ApplicableReference page
RFD-90, "
INSPECTION AFTER DISASSEMBLY
"
RFD-83, "
Tooth Contact
"
RFD-90, "
INSPECTION AFTER DISASSEMBLY
"
RFD-84, "
Backlash
"
RFD-85, "
Companion Flange Runout
"
RFD-40, "
Checking Differential Gear Oil
"
PR-2, "
NVH Troubleshooting Chart
"
RAX-5, "
NVH Troubleshooting Chart
",RSU-3, "
NVH Troubleshooting Chart
"
WT-2, "
NVH Troubleshooting Chart
"
RAX-5, "
NVH Troubleshooting Chart
"
BR-5, "
NVH Troubleshooting Chart
"
PS-5, "
NVH Troubleshooting Chart
"
Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
AXLE SHAFT
BRAKES
STEERING
Symptom Noise´´´´´´´´´´´´´

RFD-40
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
DIFFERENTIAL GEAR OIL
DIFFERENTIAL GEAR OIL
PFP:KLD30
Changing Differential Gear OilEDS003AN
DRAINING
1. Stop engine.
2. Remove drain plug and drain gear oil.
3. Apply sealant to drain plug. Install drain plug to final drive
assembly and tighten to the specified torque. Refer toRFD-82,
"COMPONENTS".
FILLING
1. Remove filler plug. Fill with new gear oil until oil level reaches
the specified limit near filler plug hole.
2. After refilling oil, check oil level. Apply sealant to filler plug.
Install filler plug to final drive assembly and tighten to the speci-
fied torque. Refer toRFD-82, "
COMPONENTS".
Checking Differential Gear OilEDS003AO
OIL LEAKAGE AND OIL LEVEL
1. Make sure that gear oil is not leaking from final drive assembly or around it.
2. Check oil level from filler plug hole as shown.
CAUTION:
Do not start engine while checking oil level.
3. Apply sealant to filler plug. Install filler plug to final drive assem-
bly and tighten to the specified torque. Refer toRFD-82, "
COM-
PONENTS".
PDIA1038E
Oil grade and Viscosity:
Refer toMA-14, "
Fluids and Lubricants".
Oil capacity:
Approx. 2.01 (3-1/2pt)
PDIA1039E
PDIA1039E

FRONT OIL SEAL
RFD-79
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
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RFD
4. Rotate the drive pinion using Tool. Rotating torque should be
equal to the reading recorded in step 4 above during removal
plus an additional 0.56 N·m (5 in-lb).
5. If the rotating torque is low, continue to tighten the drive pinion
lock nut in 6.8 N·m (5 ft-lb) increments without overtightening.
Refer toRFD-82, "
COMPONENTS". Tighten until proper rotat-
ingtorqueisachieved.
CAUTION:
lDo not loosen the drive pinion lock nut to decrease drive
pinion rear bearing rotating torque.
lDo not exceed specified rotating preload torque. If preload torque or rotating torque is exceeded
a new collapsible spacer must be installed.
lDo not exceed maximum tightening torque. If maximum tightening torque is reached prior to
reaching the required rotating torque, the collapsible spacer may have been damaged. Replace
the collapsible spacer.
6. Check the gear oil level. Refer toRFD-40, "
Checking Differential Gear Oil".
7. Install the remaining components in the reverse order of removal.Tool number : ST3127S000
PDIA0309E

RFD-80
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
CARRIER COVER
CARRIER COVER
PFP:38351
Removal and InstallationEDS003BE
REMOVAL
1. Remove the drain plug and drain the gear oil. Refer toRFD-40, "DRAINING".
2. Disconnect the rear cable (LH) from the carrier cover. Refer toPB-3, "
Components".
3. Remove bracket from the axle housing.
4. Remove the carrier cover bolts. Then separate carrier cover
from the axle housing using Tool.
CAUTION:
lBe careful not to damage the mating surface.
lDo not insert flat-bladed screwdriver, this will damage the
mating surface.
INSTALLATION
1. Apply sealant to mating surface of carrier cover. Refer toRFD-
82, "COMPONENTS".
CAUTION:
Remove old sealant adhering to mounting surfaces. Also
remove any moisture, oil, or foreign material adhering to
application and mounting surfaces.
2. Install carrier cover and bracket on axle housing. Then tighten
carrier cover bolts to the specified torque. Refer toRFD-82,
"COMPONENTS".
3. Connect the rear cable (LH) to the carrier cover and tighten to
the specified torque. Refer toPB-3, "
Components".
4. Fill with new gear oil until oil level reaches the specified limit
near filler plug hole. Refer toRFD-40, "
Checking Differential
Gear Oil".
PDIA1066E
Tool number : KV10111100
PDIA1063E
PDIA1042E
PDIA1066E

REAR FINAL DRIVE ASSEMBLY
RFD-81
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
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RFD
REAR FINAL DRIVE ASSEMBLYPFP:38300
Removal and InstallationEDS003BF
REMOVAL
1. Remove the rear propeller shaft. Refer toPR-8, "Removal and Installation".
lPlug rear end of transmission or transfer.
2. Remove the axle shafts and back plate and torque members. Refer toRAX-7, "
Removal and Installation".
3. Disconnect the following components from the rear final drive.
lABS sensor wire harness
lRear cable (LH) and rear cable (RH)
lBrake hoses and brake tube
lDifferential lock position switch harness connector
lDifferential lock solenoid harness connector
CAUTION:
Position the wire harness, cable and hoses away from the final drive assembly. Failure to do so
may result in components being damaged during rear axle assembly removal.
4. Support the rear final drive using a suitable jack.
5. Remove rear shock absorber lower bolts. Refer toRSU-6, "
Removal and Installation".
6. Remove leaf spring U-bolt nuts. Refer toRSU-7, "
Removal and Installation".
WARNING:
Support the rear final drive assembly using suitable jack before removing leaf spring U-bolt nuts.
7. Remove rear final drive assembly using suitable jack.
INSTALLATION
Installation is the reverse order of removal.
lWhen oil leaks while removing rear final drive assembly, check oil level after the installation. Refer to
RFD-40, "
Checking Differential Gear Oil".
lRefill brake fluid and bleed the air from the brake system. Refer toBR-11, "Bleeding Brake System".
lAfter the installation, check DIFF LOCK indicator lamp. Refer toRFD-33, "Precautions for Differential
Case Assembly and Differential Lock Control Unit Replacement".

REAR FINAL DRIVE ASSEMBLY
RFD-83
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
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RFD
ASSEMBLY INSPECTION AND ADJUSTMENT
lBefore inspection and adjustment, drain gear oil.
Total Preload Torque
1. Rotate drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
2. Rotate drive pinion at least 20 times to check for smooth operation of the bearing.
3. Turn drive pinion in both directions several times to set bearing
rollers.
4. Measure total preload with preload gauge.
NOTE:
Total preload torque = Pinion bearing preload torque + Side bearing preload torque
lIf measured value is out of the specification, disassemble it to check and adjust each part. Adjust pinion
bearing preload and side bearing preload.
Adjust pinion bearing preload first, then adjust side bearing preload.
Tooth Contact
Checking gear tooth contact pattern is necessary to verify correct relationship between drive gear and drive
pinion. Gears which are not positioned in proper arrangement may be noisy and/or have a short life. Check
gear tooth contact pattern to obtain the best contact for low noise and long life.
1. Remove carrier cover. Refer toRFD-86, "
Differential Assembly".
2. Thoroughly clean drive gear and drive pinion teeth.
3. Apply red lead to drive gear.
CAUTION:
Applyredleadtoboththefacesof3to4gearsat4loca-
tions evenly spaced on drive gear.Tool number : ST3127S000
To ta l p r e l o a d
Gear ratio 3.538 Type:
2.34 - 4.34 N·m (0.24 - 0.44 kg-m, 21- 38 in-lb)
Gear ratio 3.692 Type:
2.32 - 4.34 N·m (0.24 - 0.44 kg-m, 21 - 38 in-lb)
When the preload torque is greater than specification
On pinion bearings: Replace collapsible spacer.
On side bearings: Loosen side bearing adjuster.
When the preload torque is less than specification
On pinion bearings: Tighten drive pinion lock nut.
On side bearings: Tighten side bearing adjuster.
PDIA0309E
SDIA2623E

RFD-92
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
REAR FINAL DRIVE ASSEMBLY
4. Temporarily install drive pinion height adjusting washer.
When hypoid gear set has been replaced
lSelect drive pinion height adjusting washer. Refer toRFD-90,
"Drive Pinion Height Adjusting Washer".
When hypoid gear set has been reused
lTemporarily install the removed drive pinion height adjusting
washer or same thickness washer to drive pinion.
5. Install selected drive pinion height adjusting washer to drive pin-
ion, and press-fit drive pinion rear bearing inner race in it, using
a press and suitable tool.
CAUTION:
Do not reuse drive pinion rear bearing.
6. Apply gear oil to drive pinion rear bearing and drive pinion front
bearing.
7. Install drive pinion front bearing inner race in axle housing.
CAUTION:
Do not reuse drive pinion front bearing.
8. Install front bearing thrust washer to axle housing.
9. Perform checking and adjusting the tooth contact and backlash of the hypoid gear following the procedure
below.
a. Assemble the drive pinion assembly to the axle housing.
CAUTION:
Do not assemble a collapsible spacer.
b. Insert companion flange onto drive pinion. Tap the companion
flange with a soft hammer until fully seated.
CAUTION:
Do not assemble a front oil seal.
c. Temporarily tighten removed drive pinion lock nut and washer to
drive pinion.
NOTE:
Use removed drive pinion lock nut and washer only for the pre-
load measurement.
d. Rotate drive pinion at least 20 times to check for smooth opera-
tion of the bearing.
SDIA1666E
PDIA1053E
PDIA0328E
Tool number : KV40104000
PDIA0313E