IDX INFINITI QX4 2001 Factory Service Manual

Engine Maintenance
DRIVE BELT DEFLECTIONNBMA0038Unit: mm (in)
Used belt deflection
Deflection of new belt
Limit Deflection after adjustment
Alternator
Power steering oil pump
Fan7 (0.28)4 - 5 (0.16 - 0.20) 3.5 - 4.5 (0.138 - 0.177)
Air conditioner compressor 12 (0.47) 9 - 10 (0.35 - 0.39)8 - 9 (0.31 - 0.35)
Applied pushing force 98 N (10 kg, 22 lb)
DRIVE BELT TENSIONNBMA0042Unit: N (kg, lb)
Used belt
New belt
Limit After adjustment
Generator
Power steering oil pump
Fan294 (30, 66) 730 - 818 (74.4 - 83.5, 164 - 184) 838 - 926 (85.4 - 94.5, 188 - 208)
Air conditioner compressor 196 (20, 44) 348 - 436 (35.5 - 44.5, 78 - 98) 470 - 559 (47.9 - 57.0, 106 - 126)
SPARK PLUG TYPENBMA0039
Symbol Make
Standard type PLFR5A-11 NGK
Cold type PLFR6A-11 NGK
Hot type PLFR4A-11 NGK
Plug gap (Nominal) 1.1 mm (0.043 in)
Chassis and Body Maintenance
WHEEL BALANCENBMA0040
Maximum allowable unbalanceDynamic (At rim flange) g (oz) 10 (0.35) (one side)
Static g (oz) 20 (0.71)
GI
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Engine Maintenance
MA-29

PROPELLER SHAFT &
DIFFERENTIAL CARRIER
SECTION
PD
CONTENTS
PROPELLER SHAFT......................................................3
Noise, Vibration and Harshness (NVH)
Troubleshooting ...........................................................3
NVH TROUBLESHOOTING CHART............................3
Components.................................................................4
FRONT PROPELLER SHAFT.....................................4
REAR PROPELLER SHAFT.......................................5
On-vehicle Service.......................................................6
PROPELLER SHAFT VIBRATION...............................6
APPEARANCE CHECKING........................................6
Removal and Installation .............................................6
Inspection.....................................................................7
Disassembly.................................................................7
CENTER BEARING - 2WD -.......................................7
JOURNAL (71H AND 80B)..........................................8
Assembly .....................................................................9
CENTER BEARING - 2WD -.......................................9
JOURNAL (71H AND 80B)..........................................9
Service Data and Specifications (SDS)..................... 11
GENERAL SPECIFICATIONS................................... 11
SERVICE DATA....................................................... 11
SNAP RING (80B).................................................... 11
SNAP RING (71H)...................................................12
R200A
FRONT FINAL DRIVE...................................................13
Preparation ................................................................13
SPECIAL SERVICE TOOLS......................................13
Noise, Vibration and Harshness (NVH)
Troubleshooting .........................................................15
On-vehicle Service.....................................................15
FRONT OIL SEAL REPLACEMENT...........................15
REAR COVER GASKET REPLACEMENT..................16
Components...............................................................17
Removal and Installation ...........................................18
REMOVAL...............................................................18
INSTALLATION........................................................18
Disassembly...............................................................18
PRE-INSPECTION...................................................18
FINAL DRIVE HOUSING..........................................19
DIFFERENTIAL CASE..............................................21
DIFFERENTIAL SIDE SHAFT...................................22
Inspection...................................................................23
RING GEAR AND DRIVE PINION.............................23
DIFFERENTIAL CASE ASSEMBLY...........................23
BEARING................................................................23
Adjustment .................................................................24
SIDE BEARING PRELOAD.......................................24
PINION GEAR HEIGHT AND PINION BEARING
PRELOAD
...............................................................25
TOOTH CONTACT...................................................29
Assembly ...................................................................30
DIFFERENTIAL SIDE SHAFT...................................30
DIFFERENTIAL CASE..............................................31
FINAL DRIVE HOUSING..........................................32
Service Data and Specifications (SDS).....................36
R200A.....................................................................36
H233B
REAR FINAL DRIVE.....................................................38
Preparation ................................................................38
SPECIAL SERVICE TOOLS......................................38
Noise, Vibration and Harshness (NVH)
Troubleshooting .........................................................40
On-vehicle Service.....................................................40
FRONT OIL SEAL REPLACEMENT...........................40
Components...............................................................42
Removal and Installation ...........................................43
REMOVAL...............................................................43
INSTALLATION........................................................43
Disassembly...............................................................43
PRE-INSPECTION...................................................43
DIFFERENTIAL CARRIER........................................44
DIFFERENTIAL CASE..............................................46
Inspection...................................................................47
RING GEAR AND DRIVE PINION.............................47
DIFFERENTIAL CASE ASSEMBLY...........................47
BEARING................................................................47
Limited Slip Differential ..............................................47
PREPARATION FOR DISASSEMBLY........................47
GI
MA
EM
LC
EC
FE
AT
TF
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX

Noise, Vibration and Harshness (NVH)
Troubleshooting
=NBPD0049NVH TROUBLESHOOTING CHARTNBPD0049S01Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
Reference pageÐ
Ð
Ð
Ð
PD-6
PD-6
PD-23, 47
PD-29, 56
PD-23, 47
PD-18, 43
Ð
Ð
Ð
Ð
AX-3
AX-3
SU-3
SU-3
SU-3
BR-6
ST-6
Possible cause and
SUSPECTED PARTS
Uneven rotation torque
Excessive center bearing axial end play
Center bearing mounting (insulator) cracks, damage or deterioration
Excessive joint angle
Rotation imbalance
Excessive runout
Rough gear tooth
Improper gear contact
Tooth surfaces worn
Incorrect backlash
Companion flange excessive runout
Improper gear oil
PROPELLER SHAFT
DIFFERENTIAL
DRIVE SHAFT
AXLE
SUSPENSION
TIRES
ROAD WHEEL
BRAKES
STEERING
SymptomPROPEL-
LER
SHAFTNoise´´´´´´ ´´´´´´´´
Shake´ ´´´´´´´
Vibration´´´´´´ ´´´´ ´
DIFFER-
ENTIALNoise´´´´´´´ ´´´´´´´
´: Applicable
GI
MA
EM
LC
EC
FE
AT
TF
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
PROPELLER SHAFT
Noise, Vibration and Harshness (NVH) Troubleshooting
PD-3

REAR PROPELLER SHAFTNBPD0002S02
SPD522A
SPD468AA
GI
MA
EM
LC
EC
FE
AT
TF
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
PROPELLER SHAFT
Components (Cont'd)
PD-5

SPD359
IDraw out propeller shaft from transmission and plug up rear
end of transmission rear extension housing.
SPD106
InspectionNBPD0006IInspect propeller shaft runout. If runout exceeds specifications,
replace propeller shaft assembly.
Runout limit: 0.6 mm (0.024 in)
SPD874
IIf the play exceeds specifications, replace propeller shaft
assembly.
Journal axial play:
0.02 mm (0.0008 in) or less
SPD109
DisassemblyNBPD0007CENTER BEARING Ð 2WD ÐNBPD0007S031. Put match marks on flanges, and separate 2nd tube from 1st
tube.
SPD110
2. Put match marks on the flange and shaft.
GI
MA
EM
LC
EC
FE
AT
TF
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
PROPELLER SHAFT
Removal and Installation (Cont'd)
PD-7

SPD131
4. Remove bearing at opposite side in above operation.
Put marks on disassembled parts so that they can be rein-
stalled in their original positions from which they were
removed.
SPD114
AssemblyNBPD0008CENTER BEARING Ð 2WD ÐNBPD0008S03IWhen installing center bearing, position the ªFº mark on cen-
ter bearing toward front of vehicle.
IApply a coat of multi-purpose lithium grease containing
molybdenum disulfide to the end face of the center bear-
ing and both sides of the washer.
SPD117
IStake the nut. Always use new one.
IAlign match marks when assembling tubes.
SPD133
JOURNAL (71H AND 80B)NBPD0008S021. Assemble journal bearing. Apply recommended multi-purpose
grease on bearing inner surface.
When assembling, be careful that needle bearing does not fall
down.
SPD134
2. Select snap ring that will provide specified play in axial direc-
tion of journal, and install them.
Refer to SDS, PD-11.
Select snap rings with a difference in thickness at both sides
within 0.06 mm (0.0024 in).
GI
MA
EM
LC
EC
FE
AT
TF
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
PROPELLER SHAFT
Disassembly (Cont'd)
PD-9

Service Data and Specifications (SDS)
GENERAL SPECIFICATIONS=NBPD00092WD ModelNBPD0009S01
TransmissionA/T
Propeller shaft model3F80B-2BJ
Number of joints3
Coupling method with transmissionFlange type
Type of journal bearings Solid type (disassembly type Ð without birfield joint Ð)
Distance between yokes mm (in)80 (3.15)
Shaft length (Spider to spider) mm (in)1st 650 (25.59)
2nd 749 (29.49)
Shaft outer diameter mm (in)1st 75 (2.95)
2nd 65 (2.56)
4WD ModelNBPD0009S02
LocationFront Rear
Propeller shaft model 2F71H 2S80B-T
Number of joints2
Coupling method with transmission Flange type Sleeve type
Type of journal bearingsSolid type (disassembly type)
Distance between yokes mm (in) 71 (2.80) 80 (3.15)
Shaft length (Spider to spider) mm (in) 553 (21.77) 927 (36.50)
Shaft outer diameter mm (in) 50.8 (2.000) 75 and 63.5 (2.95 and 2.500)
SERVICE DATANBPD0010Unit: mm (in)
Propeller shaft runout limit0.6 (0.024)
Journal axial play0.02 (0.0008) or less
SNAP RING (80B)NBPD0011Unit: mm (in)
Thickness Color Part number*
1.99 (0.0783) White 37146-C9400
2.02 (0.0795) Yellow 37147-C9400
2.05 (0.0807) Red 37148-C9400
2.08 (0.0819) Green 37149-C9400
2.11 (0.0831) Blue 37150-C9400
2.14 (0.0843) Light brown 37151-C9400
2.17 (0.0854) Black 37152-C9400
2.20 (0.0866) No paint 37153-C9400
*: Always check with the Parts Department for the latest parts information.
GI
MA
EM
LC
EC
FE
AT
TF
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
PROPELLER SHAFT
Service Data and Specifications (SDS)
PD-11

Preparation
SPECIAL SERVICE TOOLSNBPD0013The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
ST3127S000
(See J25765-A)
Preload gauge
1 GG91030000
(J25765)
Torque wrench
2 HT62940000
(Ð)
Socket adapter
3 HT62900000
(Ð)
Socket adapter
NT124
Measuring pinion bearing preload and total preload
KV38100800
(J34310, J25604-01)
Differential attachment
NT119
Mounting final drive
(To use, make a new hole.)
a: 152 mm (5.98 in)
KV38108300
(J44195)
Companion flange
wrench
NT771
Removing and installing propeller shaft lock nut,
and drive pinion lock nut
ST3090S000
(Ð)
Drive pinion rear inner
race puller set
1 ST30031000
(J22912-01)
Puller
2 ST30901000
(J26010-01)
Base
NT527
Removing and installing drive pinion rear inner
cone
a: 79 mm (3.11 in) dia.
b: 45 mm (1.77 in) dia.
c: 35 mm (1.38 in) dia.
ST3306S001
Differential side bearing
puller set
1 ST33051001
(J22888-20)
Body
2 ST33061000
(J8107-2)
Adapter
NT072
Removing and installing differential side bearing
inner cone
a: 28.5 mm (1.122 in) dia.
b: 38 mm (1.50 in) dia.
KV38100300
(J25523)
Differential side bearing
drift
NT085
Installing side bearing inner cone
a: 54 mm (2.13 in) dia.
b: 46 mm (1.81 in) dia.
c: 32 mm (1.26 in) dia.
GI
MA
EM
LC
EC
FE
AT
TF
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
FRONT FINAL DRIVER200A
Preparation
PD-13

Tool number
(Kent-Moore No.)
Tool nameDescription
(J8129)
Spring gauge
NT127
Measuring carrier turning torque
Noise, Vibration and Harshness (NVH)
Troubleshooting
NBPD0050Refer to ªNVH TROUBLESHOOTING CHARTº, PD-3.
SPD476A
On-vehicle Service
FRONT OIL SEAL REPLACEMENTNBPD00141. Remove front propeller shaft.
2. Loosen drive pinion nut.
Tool number: KV38108300 (J44195)
SPD734
3. Remove companion flange.
SPD735
4. Remove front oil seal.
GI
MA
EM
LC
EC
FE
AT
TF
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
FRONT FINAL DRIVER200A
Preparation (Cont'd)
PD-15

ComponentsNBPD0016
SPD357AD
GI
MA
EM
LC
EC
FE
AT
TF
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
FRONT FINAL DRIVER200A
Components
PD-17