INFINITI QX56 2007 Factory Service Manual

WHEEL HUB
FAX-5
< SERVICE INFORMATION >
C
E
F
G
H
I
J
K
L
MA
B
FA X
N
O
P
WHEEL HUB
On-Vehicle Inspection and ServiceINFOID:0000000003532614
Make sure the mounting conditions (looseness, backlash) of each component and component status (wear,
damage) are normal.
WHEEL BEARING INSPECTION
• Move wheel hub in the axial direction by hand. Make sure there is
no looseness of wheel bearing.
• Rotate wheel hub and make sure there is no unusual noise or
other irregular conditions. If there are any irregular conditions,
replace wheel hub and bearing assembly.
Removal and InstallationINFOID:0000000003532615
REMOVAL
1. Remove wheel and tire using power tool.
2. Remove engine under cover using power tool.
3. Without disassembling the hydraulic lines, remove caliper torque member bolts using power tool. Then
reposition brake caliper aside with wire. Refer to BR-19, "
Removal and Installation of Brake Caliper and
Disc Rotor" .
NOTE:
Do not press brake pedal while brake caliper is removed.Axial end play limit : 0.05 mm (0.002 in) or less
SMA571A
1. Disc rotor 2. Wheel hub and bearing assembly 3. Wheel stud
4. Splash guard 5. Steering knuckle
WDIA0043E

FAX-6
< SERVICE INFORMATION >
WHEEL HUB
4. Put alignment mark on disc rotor and wheel hub and bearing
assembly, then remove disc rotor.
5. On 4WD model, remove cotter pin, then remove lock nut from drive shaft using power tool. Then remove
end of drive shaft from wheel hub and bearing assembly. Refer to FA X - 7 , "
Removal and Installation" .
6. Remove wheel sensor. Refer to BRC-56, "
Removal and Installation" .
• Inspect the wheel sensor O-ring, replace the wheel sensor assembly if damaged.
• Clean the wheel sensor hole and mounting surface with a suitable brake cleaner and clean lint-free
shop rag. Be careful that dirt and debris do not enter the axle bearing area.
• Apply a coat of suitable grease to the wheel sensor O-ring and mounting hole.
CAUTION:
Do not pull on the wheel sensor harness.
7. Remove wheel hub and bearing assembly bolts using power tool.
8. Remove splash guard and wheel hub and bearing assembly from steering knuckle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each part, replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.
• Use new bolts when installing the wheel hub and bearing assembly.
• When installing disc rotor on wheel hub and bearing assembly,
position the disc rotor according to alignment mark.
(When not using the alignment mark, refer to BR-19, "
Removal
and Installation of Brake Caliper and Disc Rotor" .)
• When installing wheel and tire. Refer to WT-7, "
Rotation" .
WDIA0044E
WDIA0044E

DRIVE SHAFT
FAX-7
< SERVICE INFORMATION >
C
E
F
G
H
I
J
K
L
MA
B
FA X
N
O
P
DRIVE SHAFT
Removal and InstallationINFOID:0000000003532616
REMOVAL
1. Remove wheel and tire using power tool.
2. Remove engine under cover using power tool.
3. Remove wheel sensor harness from mount on knuckle.
CAUTION:
Do not pull on wheel sensor harness.
4. Without disassembling the hydraulic lines, remove brake caliper using power tool. Reposition it aside with
wire. Refer to BR-19, "
Removal and Installation of Brake Caliper and Disc Rotor" .
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
5. Remove coil spring and shock absorber assembly using power tool. Refer to FSU-10, "
Removal and
Installation" .
6. Separate upper link ball joint stud from steering knuckle using
Tool.
• Support lower link with jack.
7. Remove cotter pin, then remove drive shaft nut.
8. Remove drive shaft mounting bolts from front final drive.
9. Remove drive shaft from wheel hub and bearing assembly.
CAUTION:
• When removing drive shaft, do not apply an excessive
angle to drive shaft joint. Also be careful not to exces-
sively extend slide joint.
INSPECTION AFTER REMOVAL
• Move joint up, down, left, right, and in axial direction. Check for any rough movement or significant loose-
ness.
• Check boot for cracks or other damage, and for grease leakage.
• If damaged, disassemble drive shaft to verify damage, and repair
or replace as necessary.
1. Cotter pin 2. Drive shaft nut 3. Drive shaft
LDIA0159E
Tool number : ST29020001 (J-24319-01)
LEIA0095E
RAA0030D

FAX-8
< SERVICE INFORMATION >
DRIVE SHAFT
INSTALLATION
Installation is in the reverse order of removal.
• Tighten wheel nuts to specification. Refer to WT-7, "
Rotation".
Disassembly and AssemblyINFOID:0000000003532617
DISASSEMBLY
Final Drive Side
1. Mount the drive shaft in a vise.
CAUTION:
When mounting the drive shaft in a vise, use copper or aluminum plates between the vise and the
drive shaft.
2. Remove the boot bands.
3. Remove the stopper ring using suitable tool as shown, and pull
the housing off.
1. Sliding joint housing 2. Snap ring 3. Ball cage, steel ball, inner race assembly
4. Stopper ring 5. Boot band 6. Boot
7. Drive shaft 8. Circlip 9. Joint sub-assembly
WDIA0054E
SRA249A

DRIVE SHAFT
FAX-9
< SERVICE INFORMATION >
C
E
F
G
H
I
J
K
L
MA
B
FA X
N
O
P
4. Remove the snap ring, then remove the ball cage, steel ball,
inner race assembly from the drive shaft.
5. Remove the boot from the drive shaft.
6. Remove any old grease on the housing using paper towels.
Wheel Side
1. Mount the drive shaft in a vise.
CAUTION:
When mounting the drive shaft in a vise, use copper or aluminum plates between the vise and the
drive shaft.
2. Remove the boot bands, then remove the boot from the joint sub-assembly.
3. Screw a suitable drive shaft puller 30 mm (1.18 in) or more into
the threaded part of the joint sub-assembly. Pull the joint sub-
assembly off of the drive shaft as shown.
NOTE:
Align the sliding hammer and drive shaft and remove the joint
sub-assembly by pulling straight out.
CAUTION:
• If the joint sub-assembly cannot be removed after five or
more attempts, replace the drive shaft and joint sub-
assembly as a set.
4. Remove the boot from the drive shaft.
5. Remove the circlip from the drive shaft.
6. While rotating the ball cage, remove any old grease from the joint sub-assembly using paper towels.
INSPECTION AFTER DISASSEMBLY
Drive Shaft
• Replace the drive shaft if there is any runout, cracking, or other damage.
Joint Sub-assembly
• Check for any rough rotation or unusual axial looseness.
• Clean any foreign material from inside the joint sub-assembly.
• Check for any compression scars, cracks, or fractures.
CAUTION:
If any defective conditions are found in the joint sub-assembly components, replace the entire joint
sub-assembly.
Sliding Joint Side Housing
• Check for any compression scars, cracks, fractures, or unusual wear on the ball rolling surface.
• Check for any damage to the drive shaft screws.
• Check for any deformation of the boot installation components.
Ball Cage
• Check the sliding surface for any compression scars, cracks, or fractures.
Steel Ball
• Check for any compression scars, cracks, fractures, or unusual wear.
Inner Race
SFA514A
SDIA0606E

FAX-10
< SERVICE INFORMATION >
DRIVE SHAFT
• Check the ball sliding surface for any compression scars, cracks, or fractures.
• Check for any damage to the serrated part.
CAUTION:
If any defective conditions are found, install a new housing, ball cage, steel ball, and inner race as a
set.
ASSEMBLY
Final Drive Side
1. Wrap the serrated part of the drive shaft with tape. Install the
boot band and boot to drive shaft.
NOTE:
Discard the old boot band and boot and use a new one for
assembly.
2. Remove the tape wound around the serrated part of the drive shaft.
3. Install the ball cage, steel ball, and inner race assembly on the
drive shaft, and secure them tightly using the snap ring.
NOTE:
Discard the old snap ring and use a new one for assembly.
4. Insert the specified quantity of Genuine NISSAN Grease or
equivalent, onto the housing (indicated by * marks), and install it
onto shaft. Refer to MA-10
.
5. Install the stopper ring onto the housing.
6. After installation, pull on the shaft to check engagement between the sliding joint and the stopper ring.
SFA800
SDIA1125E
Grease capacity : 130 − 150 g (4.58 − 5.29 oz)
RAC0678D

DRIVE SHAFT
FAX-11
< SERVICE INFORMATION >
C
E
F
G
H
I
J
K
L
MA
B
FA X
N
O
P
7. Install the boot securely into the grooves (indicated by * marks)
as shown.
CAUTION:
If there is grease on boot mounting surfaces (indicated by *
marks) of shaft and housing, boot may come off. Remove
all grease from surfaces.
8. Check that the boot installation length “L” is the length indicated
below. Insert a suitable tool into the large end of the boot, as
shown. Bleed air from the boot to prevent boot deformation.
CAUTION:
• The boot may break if the boot installation length is less than the specified value.
• Do not contact inside surface of boot with tip of the suitable tool.
9. Secure the large and small ends of the boot with the new boot
bands as shown.
NOTE:
Discard the old boot bands and use new ones for assembly.
10. After installing the sliding joint housing to the drive shaft, rotate the boot to check that the boot is posi-
tioned correctly. If the boot is not positioned correctly, reposition the boot and secure the boot using a new
boot band.
Wheel Side
1. Insert the Genuine NISSAN Grease or equivalent, into the joint
sub-assembly serration hole until the grease begins to ooze
from the ball groove and serration hole. Refer to MA-10
. After
inserting the grease, use a shop cloth to wipe off the grease that
has oozed out.
2. Wrap the serrated part of the drive shaft with tape. Install the
boot band and boot onto the shaft. Do not damage the boot.
NOTE:
Discard the old boot band and boot and use a new one for
assembly.
3. Remove the protective tape wound around the serrated part of
the drive shaft.Boot installation length “L ” : 145 mm (5.71 in)
WDIA0287E
SFA395
SDIA1127E
SFA800

FAX-12
< SERVICE INFORMATION >
DRIVE SHAFT
4. Attach the circlip to the drive shaftm making sure circlip fits
securely into groove on drive shaft. Then install drive shaft nut to
end of joint sub-assembly, and press-fit the circlip using a suit-
able tool as shown.
NOTE:
Discard the old circlip and use a new one for assembly.
5. Insert the specified quantity of Genuine NISSAN Grease or
equivalent, into the joint sub-assembly and the large end of the
boot. Refer to MA-10
.
6. Install the boot securely into the grooves (indicated by the *
marks) as shown.
CAUTION:
If there is grease on the boot mounting surfaces (indicated
by the * marks) of the drive shaft and joint sub-assembly,
the boot may come off. Remove all grease from the drive
shaft surfaces.
7. Check that the boot installation length “L” is the specified length.
Insert a suitable tool into the large end of the boot, as shown.
Bleed the air from the boot to prevent boot deformation.
CAUTION:
• The boot may break if the boot installation length is less than the specified length.
• Do not contact inside surface of boot with the tip of the suitable tool.
8. Secure large and small ends of the boot using new boot bands
using tool as shown.
NOTE:
Discard the old boot bands and use new ones for assembly.
• Secure boot band so that dimension "M" meets specification
as shown.
9. After installing the housing to the shaft, rotate the boot to check that it is positioned correctly. If the boot is
not positioned correctly, remove the old boot bands then reposition the boot and secure the boot with new
boot bands.Grease capacity : 145 − 165 g (5.11 − 5.82 oz)
RAC0049D
Boot installation length “L” : 168.4 mm (6.63 in)
Tool number : KV40107300 ( — )
WDIA0288E
RAC1133D
Dimension "M" : 1.0 – 4.0 mm (0.39 – 1.57 in)
DSF0047D

SERVICE DATA AND SPECIFICATIONS (SDS)
FAX-13
< SERVICE INFORMATION >
C
E
F
G
H
I
J
K
L
MA
B
FA X
N
O
P
SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel BearingINFOID:0000000003532618
Drive ShaftINFOID:0000000003532619
Wheel bearing axial end play 0.05 mm (0.002 in) or less
Drive shaft joint typeFinal drive side Rzeppa
Wheel side Rzeppa
GreaseQualityNissan Genuine Grease or
equivalent
Capacity Final drive side 130 - 150 g (4.58 - 5.29 oz)
Wheel side 145 - 165 g (5.11 - 5.82 oz)
Boot length Final drive side "L" 145 mm (5.71 in)
Wheel side "L" 168.4 mm (6.63 in)
WDIA0055E

FFD-1
DRIVELINE/AXLE
C
E
F
G
H
I
J
K
L
M
SECTION FFD
A
B
FFD
N
O
P
CONTENTS
FRONT FINAL DRIVE
SERVICE INFORMATION ............................2
PRECAUTIONS ...................................................2
Precaution for Servicing Front Final Drive ................2
PREPARATION ...................................................3
Special Service Tool .................................................3
Commercial Service Tool ..........................................5
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
6
NVH Troubleshooting Chart ......................................6
DIFFERENTIAL GEAR OIL .................................7
Changing Differential Gear Oil ..................................7
Checking Differential Gear Oil ...................................7
FRONT OIL SEAL ..............................................8
Removal and Installation ..........................................8
SIDE OIL SEAL .................................................10
Removal and Installation .........................................10
CARRIER COVER .............................................11
Removal and Installation .........................................11
FRONT FINAL DRIVE ASSEMBLY ..................12
Removal and Installation .........................................12
Disassembly and Assembly .....................................13
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
31
General Specification ..............................................31
Inspection and Adjustment ......................................31