Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti QX4 R50 1997-1998.2001 Approved QX4-R50-2001 pd
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PROPELLER SHAFT &
DIFFERENTIAL CARRIER GI
SECTION PD MA
EM
LC
EC
CONTENTS FE
PROPELLER SHAFT ......................................................3 DIFFERENTIAL CASE ..............................................21
AT
Noise, Vibration and Harshness (NVH) DIFFERENTIAL SIDE SHAFT ...................................22
Troubleshooting ...........................................................3 Inspection...................................................................23 TF
NVH TROUBLESHOOTING CHART ............................3 RING GEAR AND DRIVE PINION .............................23
Components.................................................................4 DIFFERENTIAL CASE ASSEMBLY ...........................23
FRONT PROPELLER SHAFT .....................................4 BEARING ................................................................23
REAR PROPELLER SHAFT .......................................5 Adjustment .................................................................24
On-vehicle Service.......................................................6 SIDE BEARING PRELOAD .......................................24
PROPELLER SHAFT VIBRATION ...............................6 PINION GEAR HEIGHT AND PINION BEARING AX
APPEARANCE CHECKING ........................................6 PRELOAD ...............................................................25
Removal and Installation .............................................6 TOOTH CONTACT ...................................................29
Inspection.....................................................................7 Assembly ...................................................................30 SU
DIFFERENTIAL SIDE SHAFT ...................................30
Disassembly.................................................................7
DIFFERENTIAL CASE ..............................................31
CENTER BEARING - 2WD - .......................................7
JOURNAL (71H AND 80B)..........................................8
FINAL DRIVE HOUSING ..........................................32 BR
Service Data and Specifications (SDS).....................36
Assembly .....................................................................9
R200A.....................................................................36
CENTER BEARING - 2WD - .......................................9 ST
JOURNAL (71H AND 80B)..........................................9
Service Data and Specifications (SDS).....................11 H233B
GENERAL SPECIFICATIONS ...................................11 RS
REAR FINAL DRIVE .....................................................38
SERVICE DATA .......................................................11
Preparation ................................................................38
SNAP RING (80B)....................................................11
SPECIAL SERVICE TOOLS ......................................38
SNAP RING (71H) ...................................................12
Noise, Vibration and Harshness (NVH)
BT
Troubleshooting .........................................................40
R200A
On-vehicle Service.....................................................40 HA
FRONT FINAL DRIVE ...................................................13 FRONT OIL SEAL REPLACEMENT...........................40
Preparation ................................................................13 Components...............................................................42
SPECIAL SERVICE TOOLS ......................................13 Removal and Installation ...........................................43 SC
Noise, Vibration and Harshness (NVH) REMOVAL ...............................................................43
Troubleshooting .........................................................15 INSTALLATION........................................................43
On-vehicle Service.....................................................15 Disassembly...............................................................43 EL
FRONT OIL SEAL REPLACEMENT...........................15 PRE-INSPECTION ...................................................43
REAR COVER GASKET REPLACEMENT..................16 DIFFERENTIAL CARRIER ........................................44
Components...............................................................17 DIFFERENTIAL CASE ..............................................46 IDX
Removal and Installation ...........................................18 Inspection...................................................................47
REMOVAL ...............................................................18 RING GEAR AND DRIVE PINION .............................47
INSTALLATION........................................................18 DIFFERENTIAL CASE ASSEMBLY ...........................47
BEARING ................................................................47
Disassembly...............................................................18
PRE-INSPECTION ...................................................18
Limited Slip Differential..............................................47
FINAL DRIVE HOUSING ..........................................19 PREPARATION FOR DISASSEMBLY ........................47
CONTENTS (Cont'd)
DISASSEMBLY ........................................................48 Assembly ...................................................................57
INSPECTION ...........................................................49 DIFFERENTIAL CASE ..............................................57
ADJUSTMENT .........................................................50 DIFFERENTIAL CARRIER ........................................58
ASSEMBLY .............................................................51 Service Data and Specifications (SDS).....................62
Adjustment .................................................................53 H233B.....................................................................62
PINION GEAR HEIGHT ............................................53
TOOTH CONTACT ...................................................56
PD-2
PROPELLER SHAFT
Noise, Vibration and Harshness (NVH) Troubleshooting
Noise, Vibration and Harshness (NVH)
Troubleshooting =NBPD0049
GI
NVH TROUBLESHOOTING CHART NBPD0049S01
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
MA
PD-23, 47
PD-29, 56
PD-23, 47
PD-18, 43
PD-6
PD-6
SU-3
SU-3
SU-3
BR-6
AX-3
AX-3
ST-6
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Reference page
EM
Center bearing mounting (insulator) cracks, damage or deterioration
LC
EC
FE
Excessive center bearing axial end play
AT
Possible cause and
Companion flange excessive runout
SUSPECTED PARTS
TF
Uneven rotation torque
Improper gear contact
PROPELLER SHAFT
Excessive joint angle
Tooth surfaces worn
Rotation imbalance
Incorrect backlash
Rough gear tooth
Excessive runout
Improper gear oil
DIFFERENTIAL
ROAD WHEEL
DRIVE SHAFT
SUSPENSION
AX
STEERING
BRAKES
TIRES
AXLE
SU
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