2001 INFINITI QX4 IDX

BatteryNBSC0014
Applied area USA Canada
Type80D26R
Capacity V-AH12-65
Cold cranking current A
(For reference value)582
StarterNBSC0015
TypeM0T50371
MITSUBISHI make
Reduction gear type
System voltage12V
No-loadTerminal voltage 11.0V
Current Less than 90A
Revolution More than 2,700 rpm
Minimum diameter of commutator28.8 mm (1.134 in)
Minimum length of brush7.0 mm (0.276 in)
Brush spring tension18.3 - 24.8 N (1.87 - 2.53 kg, 4.11 - 5.58 lb)
Movement ªº in height of pinion assembly 0.5 - 2.0 mm (0.020 - 0.079 in)
AlternatorNBSC0016
TypeLR1110-712
HITACHI make
Nominal rating12V-110A
Ground polarityNegative
Minimum revolution under no-load (When 13.5 volts is applied) Less than 1,000 rpm
Hot output current (When 13.5 volts is applied)More than 35A/1,300 rpm
More than 85A/2,500 rpm
More than 110A/5,000 rpm
Regulated output voltage14.1 - 14.7V
Minimum length of brushMore than 6.0 mm (0.236 in)
Brush spring pressure 1.0 - 3.43 N (102 - 350 g, 3.60 - 12.34 oz)
Slip ring minimum outer diameter More than 26.0 mm (1.024 in)
Rotor (Field coil) resistance2.31W
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SERVICE DATA AND SPECIFICATIONS (SDS)
Battery
SC-29

STEERING SYSTEM
SECTION
ST
CONTENTS
PRECAUTIONS...............................................................2
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER²...............2
Precautions for Steering System .................................2
PREPARATION...............................................................3
Special Service Tools ..................................................3
Commercial Service Tools ...........................................5
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.....................................................6
NVH Troubleshooting Chart.........................................6
ON-VEHICLE SERVICE..................................................7
Checking Steering Wheel Play ....................................7
Checking Neutral Position on Steering Wheel ............7
PRE-CHECKING........................................................7
CHECKING...............................................................7
Front Wheel Turning Angle ..........................................7
Checking Gear Housing Movement ............................8
Adjusting Rack Retainer ..............................................8
Checking and Adjusting Drive Belts ............................8
Checking Fluid Level ...................................................8
Checking Fluid Leakage ..............................................8
Bleeding Hydraulic System..........................................9
Checking Steering Wheel Turning Force ....................9
Checking Hydraulic System.......................................10
STEERING WHEEL AND STEERING COLUMN......... 11
Components............................................................... 11
Removal and Installation ........................................... 11
STEERING WHEEL................................................. 11
STEERING COLUMN...............................................12
Disassembly and Assembly .......................................13
Inspection...................................................................14
TILT MECHANISM...................................................14
STEERING TRANSFER GEAR.....................................15
Removal .....................................................................15
Installation ..................................................................16
Inspection...................................................................16
POWER STEERING GEAR AND LINKAGE................17
Components...............................................................17
Removal and Installation ...........................................18
Disassembly...............................................................19
Inspection...................................................................20
BOOT.....................................................................20
RACK.....................................................................20
PINION ASSEMBLY.................................................20
GEAR HOUSING CYLINDER....................................20
TIE-ROD OUTER AND INNER SOCKETS..................21
Assembly ...................................................................21
Adjustment .................................................................24
POWER STEERING OIL PUMP....................................27
Components...............................................................27
Pre-disassembly Inspection .......................................27
Disassembly...............................................................28
Inspection...................................................................29
Assembly ...................................................................29
SERVICE DATA AND SPECIFICATIONS (SDS).........32
General Specifications ...............................................32
Steering Wheel ..........................................................32
Steering Column ........................................................32
Steering Transfer Gear ..............................................32
Steering Gear and Linkage .......................................33
Power Steering ..........................................................33
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Special Service ToolsNBST0003The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
KV48100700
(J26364)
Torque adapter
NT169
Measuring pinion rotating torque
ST35300000
(Ð)
Drift
NT073
Installing power steering oil pump oil seal
a: 59 mm (2.32 in) dia.
b: 45 mm (1.77 in) dia.
ST27180001
(J25726-A)
Steering wheel puller
NT544
Removing steering wheel
ST29020001
(J24319-01)
Ball joint remover
NT694
Removing ball joint
a: 34 mm (1.34 in)
b: 6.5 mm (0.256 in)
c: 61.5 mm (2.421 in)
KV48103500
(J26357 and J26357-10)
Pressure gauge
NT547
Measuring oil pressure
KV48102500
(Ð)
Pressure gauge adapter
NT542
Measuring oil pressure
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PREPARATION
Special Service Tools
ST-3

Tool number
(Kent-Moore No.)
Tool nameDescription
(J-44183-A)
Spring gauge
LST025
Measuring rack sliding force
Commercial Service ToolsNBST0004
Tool name Description
Rear oil seal drift
NT063
Installing rear oil seal
a: 28 mm (1.10 in) dia.
Pinion oil seal drift
NT063
Installing pinion oil seal
a: 40 mm (1.57 in) dia.
Oil pump attachment
NT179
Disassembling and assembling oil pump
Unit: mm (in)
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PREPARATION
Special Service Tools (Cont'd)
ST-5

SST489B
Checking Steering Wheel PlayNBST00051. With wheels in a straight-ahead position, check steering wheel
play.
Steering wheel play:
35 mm (1.38 in) or less
2. If it is not within specification, check the following for loose or
worn components.
Steering gear assembly
Steering column
Front suspension and axle
SST490BA
Checking Neutral Position on Steering WheelNBST0006PRE-CHECKINGNBST0006S01IMake sure that wheel alignment is correct.
Wheel alignment:
Refer to SU-13, ªWheel Alignmentº.
IVerify that the steering gear is centered before removing the
steering wheel.
CHECKINGNBST0006S021. Check that the steering wheel is in the neutral position when
driving straight ahead.
2. If it is not in the neutral position, remove the steering wheel and
reinstall it correctly.
3. If the neutral position is between two teeth, loosen tie-rod lock
nuts. Turn the tie-rods by the same amount in opposite direc-
tions on both left and right sides.
SMA127
Front Wheel Turning AngleNBST00071. Rotate steering wheel all the way right and left; measure turn-
ing angle.
Turning angle of full turns:
Refer to SU-13, ªWheel Alignmentº.
SST651C
2. If it is not within specification, check rack stroke.
Rack stroke ªSº:
Refer to SDS (ST-33).
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ON-VEHICLE SERVICE
Checking Steering Wheel Play
ST-7

CAUTION:
Do not hold the steering wheel in a locked position for more
than 15 seconds.
4. If fluid leakage at connectors is noticed, loosen flare nut and
then retighten.
Do not overtighten connector as this can damage O-ring,
washer and connector.
5. Check rack boots for accumulation of power steering fluid.
Bleeding Hydraulic SystemNBST00131. Raise front end of vehicle until wheels are clear of the ground.
2. Add fluid into oil tank to specified level. Then, quickly turn
steering wheel fully to right and left and lightly touch steering
stoppers.
Repeat steering wheel operation until fluid level no longer
decreases.
3. Start engine.
Repeat step 2 above.
IIncomplete air bleeding will cause the following to occur. When
this happens, bleed air again.
a) Air bubbles in reservoir tank
b) Clicking noise in oil pump
c) Excessive buzzing in oil pump
Fluid noise may occur in the valve or oil pump. This is common
when the vehicle is stationary or while turning steering wheel
slowly. This does not affect performance or durability of the system.
SST491B
SST090B
Checking Steering Wheel Turning ForceNBST00141. Park vehicle on a level, dry surface and set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating tempera-
ture. [Make sure temperature of fluid is approximately 60 to
80ÉC (140 to 176ÉF).]
Tires need to be inflated to normal pressure.
4. Check steering wheel turning force when steering wheel has
been turned 360É from the neutral position.
Steering wheel turning force:
39 N (4 kg, 9 lb) or less
5. If steering wheel turning force is out of specification, check
rack sliding force.
a. Disconnect steering column lower joint and knuckle arms from
the gear.
b. Start and run engine at idle to make sure steering fluid has
reached normal operating temperature.
c. Pull tie-rod slowly to move it from neutral position to±11.5 mm
(±0.453 in) at speed of 3.5 mm (0.138 in)/s. Check that rack
sliding force is within specification.
Rack sliding force:
137 - 255 N (14 - 26 kg, 31 - 57 lb)
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ON-VEHICLE SERVICE
Checking Fluid Leakage (Cont'd)
ST-9

ComponentsNBST0016
SST843C
1. Air bag module
2. Steering wheel3. Spiral cable
4. Combination switch5. Steering column assembly
6. Column cover
CAUTION:
IThe rotation of the spiral cable (SRS ªAIR BAGº compo-
nent part) is limited. If the steering gear must be removed,
set the front wheels in the straight-ahead direction. Do not
rotate the steering column while the steering gear is
removed.
IRemove the steering wheel before removing the steering
lower joint to avoid damaging the SRS spiral cable.
SBF812E
Removal and InstallationNBST0017STEERING WHEELNBST0017S011. Remove air bag module and spiral cable. Refer to RS-17,
ªRemoval Ð Air Bag Module and Spiral Cableº.
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STEERING WHEEL AND STEERING COLUMN
Components
ST-11

Disassembly and AssemblyNBST0018
SST845C
1. Combination switch
2. Lock nut
3. Jacket tube assembly4. Tilt lever
5. Tilt spring
6. Steering column shaft assembly7. Band
8. Jacket tube bracket insulator
assembly
9. Hole cover
SST490C
IWhen disassembling and assembling, unlock steering lock
with key.
IInstall lock nut on steering column shaft and tighten the nut to
specification.
: 25 - 34 N´m (2.5 - 3.5 kg-m, 18 - 25 ft-lb)
SST742A
ISteering lock
a) Break self-shear type screws with a drill or other appropriate
tool.
b) Install new self-shear type screws and then cut off self-shear
type screw heads.
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STEERING WHEEL AND STEERING COLUMN
Disassembly and Assembly
ST-13