INFINITI QX4 2001 Factory Service Manual

SPD356A
On-vehicle Service
PROPELLER SHAFT VIBRATIONNBPD0003If vibration is present at high speed, inspect propeller shaft runout
first.
1. Raise rear wheels.
2. Measure propeller shaft runout at several points by rotating
final drive companion flange with hands.
Runout limit: 0.6 mm (0.024 in)
SPD523A
Propeller shaft runout measuring points:
Unit: mm (in)
Distance A B C
3F80B-2BJ 372.5 (14.67) 240 (9.45) 240 (9.45)
2S80B-T 280 (11.02) 463.5 (18.25) 266.5 (10.49)
2F71H 173.5 (6.83) Ð Ð
SPD102
3. If runout exceeds specifications, disconnect propeller shaft at
final drive companion flange; then rotate companion flange
180 degrees and reconnect propeller shaft.
4. Check runout again. If runout still exceeds specifications,
replace propeller shaft assembly.
5. Perform road test.
APPEARANCE CHECKINGNBPD0004IInspect propeller shaft tube surface for dents or cracks.
If damaged, replace propeller shaft assembly.
IIf center bearing is noisy or damaged, replace center bearing.
SPD103
Removal and InstallationNBPD0005IPut matchmarks on flanges and separate propeller shaft from
final drive.
PROPELLER SHAFT
On-vehicle Service
PD-6

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.
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PROPELLER SHAFT
Removal and Installation (Cont'd)
PD-7

SPD475A
3. Remove locking nut with Tool.
Tool number:
KV38108300 (J44195)
4. Remove companion flange with puller.
SPD113
5. Remove center bearing with Tool and press.
Tool number: ST30031000 (J22912-01)
SPD128
JOURNAL (71H AND 80B)NBPD0007S021. Put matchmarks on shaft and flange or yoke.
SPD731
2. Remove snap ring.
SPD732
3. Remove pushed out journal bearing by lightly tapping yoke
with a hammer, taking care not to damage journal and yoke
hole.
PROPELLER SHAFT
Disassembly (Cont'd)
PD-8

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).
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PROPELLER SHAFT
Disassembly (Cont'd)
PD-9

SPD732
3. Adjust thrust clearance between bearing and snap ring to zero
by tapping yoke.
SPD874
4. Check to see that journal moves smoothly and check for axial
play.
Axial play: 0.02 mm (0.0008 in) or less
PROPELLER SHAFT
Assembly (Cont'd)
PD-10

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.
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PROPELLER SHAFT
Service Data and Specifications (SDS)
PD-11

SNAP RING (71H)NBPD0012Unit: mm (in)
Thickness Color Part number*
1.99 (0.0783) White 37146-01G00
2.02 (0.0795) Yellow 37147-01G00
2.05 (0.0807) Red 37148-01G00
2.08 (0.0819) Green 37149-01G00
2.11 (0.0831) Blue 37150-01G00
2.14 (0.0843) Light brown 37151-01G00
2.17 (0.0854) Pink 37152-01G00
2.20 (0.0866) No paint 37153-01G00
*: Always check with the Parts Department for the latest parts information.
PROPELLER SHAFT
Service Data and Specifications (SDS) (Cont'd)
PD-12

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.
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FRONT FINAL DRIVER200A
Preparation
PD-13

Tool number
(Kent-Moore No.)
Tool nameDescription
KV38100600
(J25267)
Side bearing spacer drift
NT528
Installing side bearing spacer
a: 8 mm (0.31 in)
b: R42.5 mm (1.673 in)
ST30611000
(J25742-1)
Drift
NT090
Installing pinion rear bearing outer race
(Use with ST30621000 or ST30613000.)
ST30621000
(J25742-5)
Drift
NT073
Installing pinion rear bearing outer race
(Use with ST30611000.)
a: 79 mm (3.11 in) dia.
b: 59 mm (2.32 in) dia.
ST30613000
(J25742-3)
Drift
NT073
Installing pinion front bearing outer race
(Use with ST30611000.)
a: 72 mm (2.83 in) dia.
b: 48 mm (1.89 in) dia.
KV38100500
(J25273)
Gear carrier front oil
seal drift
NT115
Installing front oil seal
a: 85 mm (3.35 in) dia.
b: 60 mm (2.36 in) dia.
KV38100200
(J26233)
Gear carrier side oil
seal drift
NT120
Installing side oil seal
(J34309)
Differential shim selec-
tor
NT134
Adjusting bearing pre-load and gear height
(J25269-4)
Side bearing discs
(2 Req'd)
NT136
Selecting pinion height adjusting washer
FRONT FINAL DRIVER200A
Preparation (Cont'd)
PD-14

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.
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FRONT FINAL DRIVER200A
Preparation (Cont'd)
PD-15