INSTALLATION INFINITI QX4 2001 Factory User Guide

SAT838A
DISASSEMBLYNBAT01251. Remove valves at parallel pins.
2. Remove valves at retainer plates.
For removal procedures, refer to ªDISASSEMBLYº of Control
Valve Upper Body.
SAT829A
INSPECTIONNBAT0126Valve SpringsNBAT0126S01ICheck each valve spring for damage or deformation. Also
measure free length and outer diameter.
Inspection standard:
Refer to SDS, AT-357.
IReplace valve springs if deformed or fatigued.
Control ValvesNBAT0126S02ICheck sliding surfaces of control valves, sleeves and plugs for
damage.
SAT838A
ASSEMBLYNBAT0127IInstall control valves.
For installation procedures, refer to ªASSEMBLYº of Control
Valve Upper Body, AT-309.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Control Valve Lower Body (Cont'd)
AT-313

SAT853A
DISASSEMBLY AND ASSEMBLYNBAT0133Service procedures for high clutch are essentially the same as
those for reverse clutch, with the following exception:
SAT854A
ICheck of high clutch operation
SAT525G
IRemoval and installation of return spring
SAT829A
IInspection of high clutch return springs
Inspection standard:
Refer to SDS, AT-357.
SAT845A
IInspection of high clutch drive plate
Thickness of drive plate:
Standard
1.52 - 1.67 mm (0.0598 - 0.0657 in)
Wear limit
1.40 mm (0.0551 in)
REPAIR FOR COMPONENT PARTS
High Clutch (Cont'd)
AT-318

SAT526G
IRemoval and installation of return springs
SAT829A
IInspection of forward clutch and overrun clutch return springs
Inspection standard:
Refer to SDS, AT-357.
SAT845A
IInspection of forward clutch drive plates
Thickness of drive plate:
Standard
1.52 - 1.67 mm (0.0598 - 0.0657 in)
Wear limit
1.40 mm (0.0551 in)
SAT845A
IInspection of overrun clutch drive plates
Thickness of drive plate:
Standard
1.90 - 2.05 mm (0.0748 - 0.0807 in)
Wear limit
1.80 mm (0.0709 in)
SAT866A
IInstallation of forward clutch piston and overrun clutch piston
a) Install forward clutch piston by turning it slowly and evenly.
IApply ATF to inner surface of clutch drum.
REPAIR FOR COMPONENT PARTS
Forward and Overrun Clutches (Cont'd)
AT-322

Reverse Clutch Drum End PlayNBAT0170
Reverse clutch drum end play ªT2º 0.55 - 0.90 mm (0.0217 - 0.0354 in)
Thickness of oil pump thrust washerThickness mm (in) Part number*
0.9 (0.035)
1.1 (0.043)
1.3 (0.051)
1.5 (0.059)
1.7 (0.067)
1.9 (0.075)31528-21X01
31528-21X02
31528-21X03
31528-21X04
31528-21X05
31528-21X06
Removal and InstallationNBAT0171
Manual control linkageNumber of returning revolutions for lock nut 2
Lock nut tightening torque4.4 - 5.9 N´m
(0.45 - 0.60 kg-m, 39.1 - 52.1 in-lb)
Distance between end of converter housing and torque converter 25.0 mm (0.984 in) or more
*: Always check with the Parts Department for the latest parts information.
Shift Solenoid ValvesNBAT0217
Gear position1234
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Solenoid ValvesNBAT0218
Solenoid valves Resistance (Approx.)WTerminal No.
Shift solenoid valve A 20 - 40 3
Shift solenoid valve B 20 - 40 2
Overrun clutch solenoid valve 20 - 40 4
Line pressure solenoid valve 2.5 - 5 6
Torque converter clutch solenoid valve 10 - 20 7
A/T Fluid Temperature SensorNBAT0219Remarks: Specification data are reference values.
Monitor item Condition Specification
A/T fluid tem-
perature
sensorCold [20ÉC (68ÉF)]
"
Hot [80ÉC (176ÉF)]Approximately 1.5V
"
Approximately 0.5VApproximately 2.5 kW
"
Approximately 0.3 kW
Turbine Revolution SensorNBAT0232
Terminal No. Resistance
1 2 2.4 - 2.8 kW
2 3 No continuity
1 3 No continuity
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Reverse Clutch Drum End Play
AT-361

FRONT & REAR AXLE
SECTION
AX
CONTENTS
FRONT AXLE..................................................................2
Precautions ..................................................................2
PRECAUTIONS.........................................................2
Preparation ..................................................................2
SPECIAL SERVICE TOOLS........................................2
COMMERCIAL SERVICE TOOLS................................2
Noise, Vibration and Harshness (NVH)
Troubleshooting ...........................................................3
NVH TROUBLESHOOTING CHART............................3
On-vehicle Service.......................................................3
FRONT AXLE PARTS................................................3
FRONT WHEEL BEARING.........................................4
DRIVE SHAFT...........................................................5
Wheel Hub and Rotor Disc..........................................6
COMPONENTS.........................................................6
REMOVAL.................................................................6
INSTALLATION..........................................................7
DISASSEMBLY..........................................................8
INSPECTION.............................................................8
ASSEMBLY...............................................................8
Knuckle Spindle ...........................................................9
REMOVAL.................................................................9
INSPECTION...........................................................10
INSTALLATION........................................................10
Drive Shaft .................................................................10
COMPONENTS.......................................................10
REMOVAL............................................................... 11
DISASSEMBLY........................................................ 11
INSPECTION...........................................................12
ASSEMBLY.............................................................13
INSTALLATION........................................................14
Service Data and Specifications (SDS).....................15
WHEEL BEARING (FRONT).....................................15
DRIVE SHAFT.........................................................16
REAR AXLE...................................................................17
Precautions ................................................................17
PRECAUTIONS.......................................................17
Preparation ................................................................17
SPECIAL SERVICE TOOLS......................................17
COMMERCIAL SERVICE TOOLS..............................18
Noise, Vibration and Harshness (NVH)
Troubleshooting .........................................................18
On-vehicle Service.....................................................18
REAR AXLE PARTS.................................................18
REAR WHEEL BEARING.........................................18
Components...............................................................19
Removal .....................................................................19
Inspection...................................................................21
AXLE SHAFT...........................................................21
BEARING CAGE......................................................21
REAR AXLE HOUSING............................................21
Installation ..................................................................21
Service Data and Specifications (SDS).....................22
WHEEL BEARING (REAR).......................................22
GI
MA
EM
LC
EC
FE
AT
TF
PD
SU
BR
ST
RS
BT
HA
SC
EL
IDX

Noise, Vibration and Harshness (NVH)
Troubleshooting
NBAX0034NVH TROUBLESHOOTING CHARTNBAX0034S01Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
Reference pageÐ
AX-12
Ð
AX-6, 19
Ð
AX-4, 18
PD-3
PD-3
Refer to DRIVE SHAFT
in this chart.
Refer to AXLE
in this chart.
SU-3
SU-3
SU-3
BR-6
ST-6
Possible cause and
SUSPECTED PARTS
Excessive joint angle
Joint sliding resistance
Imbalance
Improper installation, looseness
Parts interference
Wheel bearing damage
PROPELLER SHAFT
DIFFERENTIAL
DRIVE SHAFT
AXLE
SUSPENSION
TIRES
ROAD WHEEL
BRAKES
STEERING
SymptomDRIVE SHAFTNoise, Vibration´´ ´´ ´ ´´´´´
Shake´ ´ ´ ´ ´´´´´
AXLENoise´´ ´´ ´ ´´´´´
Shake´´ ´ ´ ´´´´´
Vibration´´ ´ ´ ´´ ´
Shimmy´´ ´´´´´
Judder´ ´´´´´
Poor quality ride or
handling´´´ ´´´
´: Applicable
SMA525A
On-vehicle Service
FRONT AXLE PARTSNBAX0004Check front axle parts for excessive play, cracks, wear and other
damage.
1. Shake each front wheel to check for excessive play.
2. Retighten all nuts and bolts to the specified torque.
Tightening torque:
Refer to ªWheel Hub and Rotor Discº, AX-6.
GI
MA
EM
LC
EC
FE
AT
TF
PD
SU
BR
ST
RS
BT
HA
SC
EL
IDX
FRONT AXLE
Noise, Vibration and Harshness (NVH) Troubleshooting
AX-3

SFA802B
2. Remove hub cap with suitable tool.
SFA753B
3. Remove snap ring with suitable tool.
4. Remove drive flange.
SFA364BA
5. Remove lock washer.
SFA754B
6. Remove wheel bearing lock nut.
SFA832
7. Remove wheel hub and wheel bearing.
Be careful not to drop outer bearing.
INSTALLATIONNBAX00091. After installing wheel hub and wheel bearing, adjust wheel
bearing preload.
Refer to ªPreload Adjustmentº, ªFRONT WHEEL BEARINGº,
ªOn-vehicle Serviceº, AX-4.
GI
MA
EM
LC
EC
FE
AT
TF
PD
SU
BR
ST
RS
BT
HA
SC
EL
IDX
FRONT AXLE
Wheel Hub and Rotor Disc (Cont'd)
AX-7

INSPECTIONNBAX0014Knuckle SpindleNBAX0014S01ICheck knuckle spindle for deformation, cracks and other dam-
age by using a magnetic exploration or dyeing test.
Needle BearingNBAX0014S02ICheck needle bearing for wear, scratches, pitting, flaking and
burn marks.
SFA962-A
INSTALLATIONNBAX00151. Install needle bearing into knuckle spindle.
Make sure that needle bearing is facing in proper direction.
Apply multi-purpose grease.
2. Install knuckle with wheel hub.
3. Install tie-rod end and lower ball joint.
SFA369BA
4. After installing knuckle spindle, adjust wheel bearing preload.
Refer to ªPreload Adjustmentº, ªFRONT WHEEL BEARINGº,
ªOn-vehicle Serviceº, AX-4.
5. After installing drive shaft, check drive shaft axial end play.
Do not reuse snap ring once it has been removed.
Refer to ªDrive Shaftº, AX-10.
Drive Shaft
COMPONENTSNBAX0016
SFA874-B
FRONT AXLE
Knuckle Spindle (Cont'd)
AX-10

Joint Assembly (Final drive side)NBAX0019S03IReplace any parts of double offset joint which show signs of
scorching, rust, wear or excessive play.
ICheck serration for deformation. Replace if necessary.
ICheck slide joint housing for any damage. Replace if neces-
sary.
Joint Assembly (Wheel side)NBAX0019S04Replace joint assembly if it is deformed or damaged.
ASSEMBLYNBAX0020IAfter drive shaft has been assembled, ensure that it
moves smoothly over its entire range without binding.
IUse NISSAN GENUINE GREASE or equivalent after every
overhaul.
SFA800
Final Drive Side (TS82F)NBAX0020S011. Install new small boot band, boot and side joint housing to
drive shaft.
Cover drive shaft serration with tape so as not to damage boot
during installation.
SFA397
2. Install spider assembly securely, ensuring marks are properly
aligned.
IPress-fit with spider assembly serration chamfer facing
shaft.
3. Install new snap ring.
SFA460BA
4. Pack with grease.
Specified amount of grease:
95 - 105 g (3.35 - 3.70 oz)
5. Make sure that boot is properly installed on the drive shaft
groove. Set boot so that it does not swell and deform when its
length is ªL
1º.
Length ªL
1º: 95 - 97 mm (3.74 - 3.82 in)
GI
MA
EM
LC
EC
FE
AT
TF
PD
SU
BR
ST
RS
BT
HA
SC
EL
IDX
FRONT AXLE
Drive Shaft (Cont'd)
AX-13

SFA443B
6. Lock new larger boot band securely with a suitable tool, then
lock new smaller boot band.
7. Install new plug seal to slide joint housing by lightly tapping it.
Apply sealant to mating surface of plug seal.
SFA800
Wheel Side (ZF100)NBAX0020S021. Install new small boot band and boot on drive shaft.
Cover drive shaft serration with tape so as not to damage boot
during installation.
SFA884
2. Set joint assembly onto drive shaft by lightly tapping it.
Install joint assembly securely, ensuring marks which were
made during disassembly are properly aligned.
SFA473BA
3. Pack drive shaft with specified amount of grease.
Specified amount of grease:
135 - 145 g (4.76 - 5.11 oz)
4. Make sure that boot is properly installed on the drive shaft
groove. Set boot so that it does not swell and deform when its
length is ªL
2º.
Length ªL
2º: 96 - 98 mm (3.78 - 3.86 in)
5. Lock new larger boot band securely with a suitable tool.
6. Lock new smaller boot band.
SFA887
INSTALLATIONNBAX00211. Apply multi-purpose grease.
FRONT AXLE
Drive Shaft (Cont'd)
AX-14