wheel bolt torque INFINITI QX4 2001 Factory Service Manual

SAT801C
12. Support A/T and transfer assembly with a jack.
13. Remove rear engine mounting member from body and A/T
assembly. Tighten rear engine mounting member to the speci-
fied torque. Refer to EM-59, ªRear Engine Mountingº.
14. Remove bolts securing A/T assembly to engine.
ISecure torque converter to prevent it from dropping.
ISecure A/T assembly to a jack.
15. Lower A/T assembly with transfer.
SAT553J
SAT544J
Ð 2WD MODEL ÐNBAT0214S02CAUTION:
IDo not attach lifting cable to or place supporting fixture
under companion flange at rear of A/T (shown in the fig-
ure at left) when lifting/lowering A/T.
IBe sure to attach lifting cable to rear engine mounting or
dynamic damper location when lifting/lowering A/T.
1. Remove battery negative terminal.
2. Remove exhaust front and rear tubes.
3. Remove fluid charging pipe from A/T assembly.
4. Remove oil cooler pipe from A/T assembly.
5. Plug up openings such as the fluid charging pipe hole, etc.
6. Remove propeller shaft. Refer to PD-4, ªComponentsº.
7. Remove A/T control cable from A/T assembly.
8. Disconnect A/T and speedometer sensor harness connectors.
9. Remove starter motor. Refer to SC-18, ªRemoval and Installa-
tionº.
10. Remove gusset and rear plate cover securing engine to A/T
assembly.
11. Remove bolts securing torque converter to drive plate.
IRemove the bolts by turning crankshaft.
12. Support A/T assembly with a jack.
13. Remove rear engine mounting member from body and A/T
assembly. Tighten rear engine mounting member to the speci-
fied torque. Refer to EM-59, ªRear Engine Mountingº.
14. Remove bolts securing A/T assembly to engine.
15. Pull A/T assembly backwards.
ISecure torque converter to prevent it from dropping.
ISecure A/T assembly to a jack.
16. Lower A/T assembly.
SAT977H
InstallationNBAT0107IDrive plate runout
Maximum allowable runout:
Refer to EM-70, ªFLYWHEEL/DRIVE PLATE RUNOUTº.
If this runout is out of specification, replace drive plate with ring
gear.
REMOVAL AND INSTALLATION
Removal (Cont'd)
AT-278

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

SFA846-A
2. Install thrust washer onto drive shaft.
Make sure that thrust washer is facing in proper direction,
apply multi-purpose grease.
SFA762B
3. When installing drive shaft, adjust drive shaft axial end play by
selecting a suitable snap ring.
a. Temporarily install new snap ring on drive shaft in the same
thickness as it was installed before removal.
SFA847
b. Set dial gauge on drive shaft end.
c. Measure axial end play of drive shaft.
Axial end play: 0.45 mm (0.0177 in) or less
d. If axial end play is not within the specified limit, select another
snap ring.
1.1 mm (0.043 in)
1.3 mm (0.051 in)
1.5 mm (0.059 in)
1.7 mm (0.067 in)1.9 mm (0.075 in)
2.1 mm (0.083 in)
2.3 mm (0.091 in)
Service Data and Specifications (SDS)
WHEEL BEARING (FRONT)NBAX0022
Wheel bearing lock nutTightening torque 78 - 98 N´m (8 - 10 kg-m, 58 - 72 ft-lb)
Retightening torque after loosening wheel bearing
lock nut0.5 - 1.5 N´m (0.05 - 0.15 kg-m, 4.3 - 13.0 in-lb)
Axial end play 0 mm (0 in)
Starting force at wheel hub bolt N (kg, lb) A
Turning angle 15É - 30É
Starting force at wheel hub bolt N (kg, lb) B
Wheel bearing preload at wheel hub bolt B þ A 7.06 - 20.99 N (0.72 - 2.14 kg, 1.59 - 4.72 lb)
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-15

COMMERCIAL SERVICE TOOLSNBAX0025
Tool name Description
1 Flare nut crowfoot
2 Torque wrench
NT360
Removing and installing each brake piping
a: 10 mm (0.39 in)
Rear axle oil seal drift
NT163
Installing oil seal
a: 74 mm (2.91 in) dia.
b: 68 mm (2.68 in) dia.
c: 10 mm (0.39 in)
Noise, Vibration and Harshness (NVH)
Troubleshooting
NBAX0035Refer to ªNoise, Vibration and Harshness (NVH) Troubleshootingº,
ªFRONT AXLEº, AX-3.
SMA525A
On-vehicle Service
REAR AXLE PARTSNBAX0026Check rear axle parts for excessive play, wear and damage.
1. Shake each rear wheel to check for excessive play.
2. Retighten all nuts and bolts to the specified torque.
Tightening torque: Refer to ªComponentsº, AX-19.
SRA755A
REAR WHEEL BEARINGNBAX00271. Check that wheel bearings operate smoothly.
2. Check axial end play.
Axial end play:
0mm(0in)
REAR AXLE
Preparation (Cont'd)
AX-18

SRA763A
6. Check wheel bearing preload.
a. Turn bearing cage (with respect to axle shaft) two or three
times. It must turn smoothly.
b. Attach spring gauge to bearing cage bolt (as shown at left) and
pull it at a speed of 10 rpm to measure preload.
Spring gauge indication:
6.9 - 48.1 N (0.7 - 4.9 kg, 1.5 - 10.8 lb)
SRA292A
7. Install new oil seal to rear axle housing using a suitable tool.
After installing new oil seal, coat sealing lip with multi-pur-
pose grease.
SRA012
8. Press ABS sensor rotor onto axle shaft until it contacts wheel
bearing lock nut.
9. Position axle shafts in rear axle housing with Tool as a guide.
Be careful not to damage oil seal.
SRA755A
10. Check axial end play.
a. Check that wheel bearings operate smoothly.
b. Check axial end play.
Axial end play:
0mm(0in)
Service Data and Specifications (SDS)
WHEEL BEARING (REAR)NBAX0032
Wheel bearing axial end play0mm(0in)
Wheel bearing lock nut tightening torque 245 - 314 N´m (25 - 32 kg-m, 181 - 231 ft-lb)
Wheel bearing preload measured at bearing cage bolt 6.9 - 48.1 N (0.7 - 4.9 kg, 1.5 - 10.8 lb)
REAR AXLE
Installation (Cont'd)
AX-22

QUICK REFERENCE CHART: QX42001
Engine model VQ35DE
Firing order 1-2-3-4-5-6
Idle speed rpmA/T
(in ªNº position)750 50
Ignition timing (degree BTDC at idle speed) 15É 2É
CO% at idleIdle mixture screw is preset and
sealed at factory.
Drive belt deflection (Cold) mm (in) Used belt
Deflection of
new belt
LimitDeflection
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 (0.472)9-10
(0.354 - 0.394)8-9
(0.31 - 0.35)
Applied pressed force
N (kg, lb)98 (10, 22)
Drive belt tension adjustment (Cold)
N (kg, lb)Used belt
New belt
LimitAfter
adjustment
Alternator
Power steering 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)
Radiator cap relief pressure
kPa (kg/cm
2, psi)78 - 98 (0.8 - 1.0, 11 - 14)
Cooling system leakage testing pressure
kPa (kg/cm
2, psi)157 (1.6, 23)
Compression pressure
kPa (kg/cm
2, psi)/rpmStandard 1,275 (13.0, 185)/300
Minimum 981 (10.0, 142)/300
Spark plugStandard PLFR5A-11
Cold PLFR6A-11
Hot PLFR4A-11
Applied model 245/70 R16 tire
Camber
Degree minute
(Decimal degree)Minimum þ0É35¢(þ0.58É)
Nominal 0É10¢(0.17É)
Maximum 0É55¢(0.92É)
Left and right
difference45¢(0.75É) or less
Caster
Degree minute
(Decimal degree)Minimum 2É15¢(2.25É)
Nominal 3É00¢(3.00É)
Maximum 3É45¢(3.75É)
Left and right
difference45¢(0.75É) or less
Total toe-in Minimum 1 (0.04)
Distance (A þ B)
mm (in)Nominal 2 (0.08)
Maximum 3 (0.12)
Angle (left plus right)
Degree minute
(Decimal degree)Minimum 5¢(0.08É)
Nominal 10¢(0.17É)
Maximum 15¢(0.25É)
Wheel turning angle
(Full turn)Minimum 30É00¢(30.00É)
Inside
Degree minute
(Decimal degree)Nominal 33É00¢(33.00É)
Maximum 34É00¢(34.00É)
Outside
Degree minute
(Decimal degree)Minimum 28É00¢(28.00É)
Nominal 31É00¢(31.00É)
Maximum 32É00¢(32.00É)
* Fuel, radiator coolant and engine oil full.
Spare tire, jack, hand tools and mats in designated positions.
Unit: mm (in)Front brake
Pad wear limit 2.0 (0.079)
Rotor repair limit 26.0 (1.024)
Rear brake
Lining wear limit 1.5 (0.059)
Drum repair limit 296.5 (11.67)
Pedal free height 175 - 185 (6.89 - 7.28)
Pedal depressed height*1 70 (2.76)
Parking brake
Number of notches*2 6 - 8
*1 Under force of 490 N (50 kg, 110 lb) with engine running
*2 At pulling force: 196 N (20 kg, 44 lb)
Unit Liter US measure
Coolant with reservoir 9.2 9-3/4 qt
Engine*With oil filter 5.0 5-1/4 qt
Without oil filter 4.8 5-1/8 qt
Dry engine (engine overhaul) 6.8 7-1/4 qt
Transmis-
sionA/T2WD
8.5 9 qt
4WD
All-mode 4WD transfer 3.0 2-5/8 qt
Differential carrierFront 1.85 3-7/8 pt
Rear 2.8 5-7/8 pt
Power steering system 0.9 1 qt
Air conditioning systemRefrigerant 0.60 - 0.70 kg 1.32 - 1.54 lb
Compressor
oil0.20 6.8 fl oz
* For further details, see ªChanging Engine Oilº in MA section.
Preload
(At hub bolt)
N (kg, lb)Wheel bearing lock nut
78-98(8-10,58-72)
Tightening torque
N×m (kg-m, ft-lb)
Retightening torque after loosen-
ing wheel bearing lock nut
N×m (kg-m, in-lb)0.5 - 1.5 (0.05 - 0.15, 4.3 - 13.0)
Axial end play
mm (in)0 (0)
Starting force at wheel hub bolt
N (kg, lb)A
Turning angle
degree15É - 30É
Starting force at wheel hub bolt
N (kg, lb)B
Wheel bearing preload at wheel hub
bolt
B þ A N (kg, lb)7.06 - 20.99 (0.72 - 2.14, 1.59 - 4.72)

Wheels & Tires ..........................................................44
LIFTING POINTS AND TOW TRUCK TOWING...........45
Screw Jack ................................................................45
Garage Jack and Safety Stand .................................46
2-pole Lift ...................................................................47
Tow Truck Towing ......................................................472WD MODELS.........................................................48
4WD MODELS.........................................................48
VEHICLE RECOVERY..............................................49
TIGHTENING TORQUE OF STANDARD BOLTS........50
SAE J1930 TERMINOLOGY LIST................................51
SAE J1930 Terminology List .....................................51
CONTENTS(Cont'd)
GI-2

S/VCSW - Wiring diagram ...........................EC-493
Swirl control valve control solenoid
valve .........................................................EC-458
Swirl control valve control vacuum
check switch .............................................EC-493
SWL/V - Wiring diagram ..............................EC-458
Symbols and abbreviations .............................GI-10
Symptom matrix chart...................................EC-118
System readiness test (SRT) code ................EC-61
T
2-4WD shift solenoid valve............................TF-111
Tachometer .....................................................EL-94
Tail lamp ..........................................................EL-61
TAIL/L - Wiring diagram ..................................EL-63
TCM circuit diagram ........................................AT-13
TCM inspection table ......................................AT-92
TFTS - Wiring diagram .................................EC-311
THEFT - Wiring diagram ...............................EL-300
Theft warning system....................................EL-294
Thermometer .................................................EL-110
Thermostat ......................................................LC-16
Three way catalyst function (Left bank) .......EC-347
Three way catalyst function (Right
bank) .........................................................EC-347
Three way catalyst precautions.........................GI-6
Throttle bodies ...............................................EM-12
Throttle position sensor (TPS) .....................EC-174
Throttle position sensor adjustment .............EC-101
Throttle position switch ...........EC-431, AT-184, 264
Tie-rod .............................................................ST-21
Tie-rod ball joints.............................................ST-21
Tightening torque of standard bolts.................GI-50
Timing chain ...................................................EM-20
Tire rotation ....................................................MA-24
Tire size ...........................................................GI-44
TLID - Wiring diagram ..................................EL-179
Tooth contact (front final drive 4WD) .............PD-29
Tooth contact diff. ...........................................PD-56
Torque converter installation .........................AT-278
Torque convertor clutch solenoid
valve ..................................................AT-152, 161
Tow truck towing ..............................................GI-47
Towing point.....................................................GI-49
TP/SW - Wiring diagram ..............................EC-434
TPS - Wiring diagram...................................EC-180
Transfer control unit inspection table..............TF-55
Transfer dropping resistor .............................TF-112
Transfer fluid replacement (Part time
4WD model) ...............................................MA-22
Transfer fluid temperature sensor .................TF-111
Transfer motor ...............................................TF-117
Transfer motor relay ......................................TF-113
Transfer serial number ....................................GI-43
TRANSMT - Wiring diagram .........................EL-325
Tread-FR&RR (Dimensions)............................GI-43
Trim .................................................................BT-28
Trouble diagnoses ...........................................GI-34
Trunk lid opener, electric...............................EL-178Turbine revolution sensor..............................AT-202
TURN - Wiring diagram ..................................EL-77
Turn signal lamp .............................................EL-75
Two trip detection logic ..................................EC-59
Two-pole lift .....................................................GI-47
U
Under body .....................................................BT-60
V
Vacuum cut valve ...........................................EC-32
Vacuum cut valve bypass valve.....EC-32, 585, 591
Vacuum hose (brake system).........................BR-21
Vacuum hose drawing (Engine control) .........EC-26
Valve clearance ..............................................EM-52
Valve guide.....................................................EM-43
Valve seat.......................................................EM-45
Valve spring....................................................EM-46
Vehicle identification number...........................GI-42
Vehicle recovery (freeing a stuck
vehicle) .........................................................GI-49
Vehicle speed sensor (VSS) ........................EC-417
VENT/V - Wiring diagram ............EC-376, 555, 576
Ventilation air filter ........................................HA-159
VIAS .............................................................EC-610
VIAS - Wiring diagram .................................EC-610
Viscosity number (SAE) .................................MA-12
VSS - Wiring diagram ..................................EC-420
W
Wait detection switch ....................................TF-112
WARN - Wiring diagram................................EL-115
Warning chime ..............................................EL-125
Warning lamps ..............................................EL-114
Washer, front .................................................EL-136
Washer, rear..................................................EL-141
Water pump ....................................................LC-12
Water temperature gauge ...............................EL-94
Weatherstrip - See Exterior ............................BT-35
Wheel balance ...............................................MA-24
Wheel bearing (front)........................................AX-4
Wheel bearing (rear) ......................................AX-18
Wheel hub (front)..............................................AX-6
Wheel sensors (ABS)...............................BR-56, 80
Wheel size .......................................................GI-44
Wheelarch height .............................................SU-5
Wheelbase (Dimensions) ................................GI-43
Wide open & closed throttle position
switch ........................................................EC-174
Width (Dimensions) .........................................GI-43
WINDOW - Wiring diagram ..........................EL-245
Window, door ..................................................BT-18
Window, rear side ...........................................BT-55
Window, side - See Rear side window ...........BT-55
ALPHABETICAL INDEX
IDX-8

SST847C
InstallationNBST00221. Set wheels in the straight-ahead position.
2. Install transfer gear assembly.
3. Install column lower joint while aligning groove with protrusions
on the steering gear rear cover cap.
4. Tighten bolt while aligning groove on steering gear. Before
tightening bolt, ensure it is inserted correctly.
SST848C
5. When attaching steering column upper and lower joint to trans-
fer gear, it must be positioned as shown in figure at left.
SST707CA
InspectionNBST0024Do not disassemble steering transfer gear assembly.
ICheck that steering transfer gear assembly operates smoothly.
Also check for grease leakage, deformation and damage.
Replace steering transfer gear assembly if necessary.
ICheck rotating torque at input shaft in 360É and in both direc-
tions.
Rotating torque:
0.25 - 0.69 N´m (2.5 - 7.0 kg-cm, 2.2 - 6.1 in-lb)
If rotating torque is out of specification, replace steering trans-
fer gear assembly.
STEERING TRANSFER GEAR
Installation
ST-16

in high-pressure connector. Take care to install the proper
O-ring.
SST616C
IInitially, tighten nut on tie-rod outer socket and knuckle arm to
64 to 69 N´m (6.5 to 7.0 kg-m, 47 to 51 ft-lb). Then tighten fur-
ther to align nut groove with first pin hole so that cotter pin can
be installed.
CAUTION:
Tightening torque must not exceed 108 N´m (11.0 kg-m, 80 ft-
lb).
SST819A
IBefore removing steering column lower joint from gear, set
gear in neutral (wheels in straight-ahead position). After
removing steering column lower joint, put matching mark on
pinion shaft and pinion housing to record neutral position.
ITo install, set left and right dust boots to equal deflection.
Attach steering column lower joint by aligning matching marks
of pinion shaft and pinion housing.
SST617C
ITighten gear housing mounting bracket bolts in the order
shown.
Secure tightening torque:
118 - 137 N´m (12 - 14 kg-m, 87 - 101 ft-lb)
SST718CA
DisassemblyNBST00281. Prior to disassembling, measure pinion rotating torque. Record
the pinion rotating torque as a reference.
IBefore measuring, disconnect cylinder tube and drain
fluid.
IUse soft jaws when holding steering gear housing. Handle
gear housing carefully, as it is made of aluminum. Do not
grip cylinder in a vise.
2. Remove pinion gear.
Be careful not to damage pinion gear when removing pinion
seal ring.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
RS
BT
HA
SC
EL
IDX
POWER STEERING GEAR AND LINKAGE
Removal and Installation (Cont'd)
ST-19