2001 INFINITI QX4 lock

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)
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FRONT AXLE
Drive Shaft (Cont'd)
AX-15

SBR686C
Precautions
PRECAUTIONSNBAX0023IWhen installing rubber parts, final tightening must be car-
ried out under unladen condition* with tires on ground.
*Fuel, radiator coolant and engine oil full. Spare tire, jack,
hand tools and mats in designated positions.
IUse flare nut wrench when removing and installing brake
tubes.
IAfter installing removed suspension parts, check wheel
alignment and adjust if necessary.
IAlways torque brake lines when installing.
Preparation
SPECIAL SERVICE TOOLSNBAX0024The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
KV40101000
(J25604-01)
Axle stand
NT159
Removing rear axle shaft
ST36230000
(J25840-A)
Sliding hammer
NT126
Removing rear axle shaft
ST38020000
(Ð)
Bearing lock nut wrench
NT160
Removing wheel bearing lock nut
HT72480000 or
HT72210000
(J25852-B)
Rear axle shaft bearing
puller
NT161
Removing wheel bearing
ST37840000
(Ð)
Rear axle shaft guide
NT162
Installing rear axle shaft
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REAR AXLE
Precautions
AX-17

SRA759A
4. Remove oil seal with a screwdriver.
Do not reuse oil seal once it is removed.
Always install new one.
5. Remove ABS sensor rotor.
SRA104
6. Unbend lock washer with a screwdriver.
Do not reuse lock washer once removed. Always install new
one.
SRA728
7. Remove bearing lock nut with Tool.
SRA729-B
8. Remove wheel bearing together with bearing cage and baffle
plate from axle shaft.
SRA106
9. Remove grease seal with a screwdriver.
10. Remove wheel bearing assembly with a brass drift.
REAR AXLE
Removal (Cont'd)
AX-20

InspectionNBAX0030AXLE SHAFTNBAX0030S01Check axle shaft for straightness, cracks, damage, wear and dis-
tortion. Replace if necessary.
BEARING CAGENBAX0030S02Check bearing cage for deformation and cracks. Replace if neces-
sary.
REAR AXLE HOUSINGNBAX0030S03Check rear axle housing for yield, deformation and cracks. Replace
if necessary.
SRA288A
InstallationNBAX00311. Press new wheel bearing until it bottoms end face of bearing
cage.
Maximum load P:
39 kN (4 ton, 4.4 US ton, 3.9 Imp ton)
Always press outer race of wheel bearing during installation.
SRA289A
2. Press new grease seal until it bottoms end face of bearing
cage.
After installing new grease seal, coat sealing lip with multi-
purpose grease.
SRA761A
3. Press axle shaft into inner race of wheel bearing.
Maximum load P:
47.1 kN (4.8 ton, 5.3 US ton, 4.72 Imp ton)
Be careful not to damage and deform grease seal.
SRA762A
4. Install plain washer and a new wheel bearing lock washer.
5. Tighten wheel bearing lock nut to specified torque.
: 245 - 314 N´m (25 - 32 kg-m, 181 - 231 ft-lb)
Fit wheel bearing lock washer lip in wheel bearing lock nut
groove correctly by tightening lock nut. Be sure to bend it up.
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REAR AXLE
Inspection
AX-21

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

SBR992
RemovalNBBR0011CAUTION:
IBe careful not to splash brake fluid on painted areas; it
may cause paint damage. If brake fluid is splashed on
painted areas, wash it away with water immediately.
IAll hoses must be free from excessive bending, twisting
and pulling.
1. Connect vinyl tube to air bleeder valve.
2. Drain brake fluid from each air bleeder valve by depressing
brake pedal.
3. Remove flare nut connecting brake tube and hose, then with-
draw lock spring.
4. Cover openings to prevent entrance of dirt whenever discon-
necting brake line.
InspectionNBBR0012Check brake lines (tubes and hoses) for cracks, deterioration or
other damage. Replace any damaged parts.
SBR686C
InstallationNBBR0013CAUTION:
IRefill with new brake fluid ªDOT 3º.
INever reuse drained brake fluid.
1. Tighten all flare nuts and connecting bolts.
Flare nut:
: 15 - 17 N´m (1.5 - 1.8 kg-m, 11 - 13 ft-lb)
Connecting bolt:
: 17 - 19 N´m (1.7 - 2.0 kg-m, 12 - 14 ft-lb)
2. Refill until new brake fluid comes out of each air bleeder valve.
3. Bleed air. Refer to ªBleeding Brake Systemº, BR-8.
BRAKE HYDRAULIC LINE
Removal
BR-10

SBR824B
1. Loosen lock nut and adjust pedal free height by turning brake
booster input rod. Then tighten lock nut.
Make sure that tip of input rod stays inside.
2. Adjust clearance ªC
1º and ªC2º with stop lamp switch and
ASCD switch respectively. Then tighten lock nuts.
3. Check pedal free play.
Make sure that stop lamp is off when pedal is released.
4. Check brake pedal's depressed height while engine is running.
If depressed height is below specified value, check brake sys-
tem for leaks, accumulation of air or any damage to compo-
nents (master cylinder, wheel cylinder, etc.). Then make nec-
essary repairs.
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BRAKE PEDAL AND BRACKET
Adjustment (Cont'd)
BR-15

SBR116BG
Installation=NBBR0027CAUTION:
IBe careful not to deform or bend brake pipes during instal-
lation of booster.
IReplace clevis pin if damaged.
IRefill with new brake fluid ªDOT 3º.
INever reuse drained brake fluid.
ITake care not to damage brake booster mounting bolt
thread when installing. Due to the narrow angle of
installation, the threads can be damaged by the dash
panel.
1. Before fitting booster, temporarily adjust clevis to dimension
shown.
2. Fit booster, then secure mounting nuts (brake pedal bracket to
brake booster) lightly.
3. Connect brake pedal and booster input rod with clevis pin.
4. Secure mounting nuts.
Specification: 13 - 16 N´m (1.3 - 1.6 kg-m,9-12ft-lb)
5. Install master cylinder. Refer to ªInstallationº in ªMASTER
CYLINDERº, BR-18.
6. Adjust brake pedal height and free play. Refer to ªAdjustmentº
in ªBRAKE PEDAL AND BRACKETº, BR-14.
7. Secure lock nut for clevis.
: 16 - 22 N´m (1.6 - 2.2 kg-m, 12 - 16 ft-lb)
8. Bleed air. Refer to ªBleeding Brake Systemº, BR-8.
BRAKE BOOSTER
Installation
BR-20