wheel INFINITI FX35 2008 Service Manual

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGRAX-5
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NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327525
Use chart below to help you find the cause of the symp tom. If necessary, repair or replace these parts.
×: ApplicableReference page
—
RAX-10—
RAX-6—
NVH in PR section
NVH in RFD section
NVH in RAX and RSU section
Refer to REAR AXLE in this chart. NVH in WT section
NVH in WT section
Refer to DRIVE SHAFT in this chart.
NVH in BR sectionNVH in PS section
Possible cause and SUSPECTED PARTS
Excessive joint angle
Joint sliding resistance
Imbalance
Improper installation, looseness
Parts interference
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
REAR AXLE
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
Symptom DRIVE
SHAFT
Noise
×× ×××××× ××
Shake × × × ×××× ××
REAR AXLE Noise
×× ××× ×××××
Shake ×× × × ×××××
Vibration ×××××××
Shimmy ×× × × × × ×
Judder × × ×× ××
Poor quality ride or handling ×× × ××
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RAX-6
< SERVICE INFORMATION >
REAR WHEEL HUB AND KNUCKLE
REAR WHEEL HUB AND KNUCKLE
On-Vehicle InspectionINFOID:0000000001327526
Make sure the mounting conditions (looseness, back lash) of each component and component status (wear,
damage) are normal.
WHEEL BEARING INSPECTION
With the vehicle raised, inspect the following.
 Move wheel hub in the axial direction by hand. Che ck that there is no looseness of front wheel bearing.
 Rotate wheel hub and make sure there is no unusual noi se or other irregular conditions. If there are any
irregular conditions, replace wheel hub and bearing assembly.
Removal and InstallationINFOID:0000000001327527
COMPONENTS
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove cotter pin. Then remove lock nut from drive shaft.
3. Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to BR-
25, "Removal and Installation of Brake Caliper Assembly".
NOTE:
 Avoid depressing brake pedal while brake caliper is removed.
4. Remove disc rotor. Refer to BR-25, "
Removal and Installation of Brake Caliper Assembly".
5. Remove parking cable and parking shoe from back plate. Refer to PB-4, "
Removal and Installation".
6. Remove wheel sensor from axle. Refer to BRC-52
.
CAUTION:
Do not pull on wheel sensor harness.
7. Separate drive shaft from wheel hub and bearing assembly by lightly tapping the end with a suitable ham- mer and wood block. If it is hard to separate, use a suitable puller.
8. Remove fixing bolts of wheel hub and bearing assembly with power tool, then remove wheel hub and bearing assembly from axle.Axial end play : 0.05 mm (0.002 in) or less
1. Drive shaft 2. Bushing 3. Axle
4. Back plate 5. Anchor block 6. Wheel bearing
7. Wheel hub 8. Cotter pin
SDIA1481E
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REAR WHEEL HUB AND KNUCKLERAX-7
< SERVICE INFORMATION >
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9. Remove parking brake cable and parking brake shoe from back plate. Refer to PB-6 and PB-4.
10. Remove fixing nuts of anchor block with power tool , then remove anchor block and back plate from axle.
11. Loosen fixing bolts and nuts of front lower link, radius rod, and rear lower link in side of suspension mem-
ber.
12. Set jack under rear lower link. Then remove fixing bolt in front lower link side of shock absorber with power tool.
13. Remove bolt and nut in axle side of rear lower link with power tool. Then remove coil spring. Refer to RSU-15
.
14. Remove fixing bolts and nuts in axle side of fr ont lower link, radius rod with power tool.
15. Remove suspension arm and cotter pin at axle, then loosen mounting nut.
16. Use a ball joint remover (suitable tool) to remove suspension arm from axle. Be careful not to damage ball joint boot.
CAUTION:
Tighten temporarily mounting nu t to prevent damage to threads and to prevent ball joint remover
(suitable tool) from coming off.
17. Remove axle from vehicle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each parts, replace if necessary.
Ball Joint Inspection
Check for boot breakage, axial looseness, and tor que of suspension arm ball joint. Refer to RSU-11, "Removal
and Installation".
INSTALLATION
 Refer to "Removal and Installation" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.
 Perform final tightening of installation position of suspension links (rubber bushing) under unladen conditions
with tires on level ground, Check wheel alignment. Refer to RSU-5, "
Wheel AlignmentInspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
Disassembly and AssemblyINFOID:0000000001327528
DISASSEMBLY
Wheel Bearing
CAUTION:
Do not disassemble if wheel bearing has no trouble.
1. Remove wheel bearing fixing bolts and anchor block fixing nuts, and remove wheel hub and bearing assembly, back plate and anchor block from axle.
2. Using a drift (SST) and a puller (suitable tool), press wheel hub out to remove from wheel bearing.
SDIA1482E
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RAX-8
< SERVICE INFORMATION >
REAR WHEEL HUB AND KNUCKLE
3. Using a drift (SST) and a puller (suitable tool), press wheel bear-ing outer side inner race out to remove from wheel hub.
Bushing
Using a suitable drift, remove each bushing from axle.
INSPECTION AFTER DISASSEMBLY
Check for deformity, cracks and damage of each parts, replace if necessary.
Wheel Hub
Inspect wheel hub for deformation, cracks, and other damag e. If any irregular conditions are found, replace
wheel hub.
Axle
Inspect axle for deformation, cracks, and other damage. If any irregular conditions are found, replace axle.
Back Plate
Inspect back plate for deformation, cracks, and other damage. If any irregular conditions are found, replace
back plate.
ASSEMBLY
Bushing
Using a suitable drift to install each bushing onto axle.
Wheel Bearing
SDIA1483E
SDIA1484E
SDIA1485E
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REAR WHEEL HUB AND KNUCKLERAX-9
< SERVICE INFORMATION >
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1. Press fit a wheel hub into wheel bearing with a drift (SST). CAUTION:
• Press fit a drift (SST) while ho lding it against wheel bear-
ing inner side inner race.
 Wheel bearing cannot be reused. Do not attempt to reuse it.
NOTE:
Final press load guideline 49,033 N (5,000 kg, 11,000 lb)
2. Install back plate and wheel hub and bearing assembly.
3. Install anchor block onto axle.
INSPECTION AFTER ASSEMBLY
1. With wheel bearing pressed into axle housing, apply 49,033 N (5,000 kg, 11,000 lb) to wheel hub and rotate both clockwise and counterclockwise 10 times to minimize resistance.
2. Attach spring scale in the position shown in illustration and pull at a rate of 10 ± 2 rpm to measure rotating torque.
SDIA1120E
Rotating torque:
Less than 2.7 N·m (0.28 kg-m, 24 in-lb)
Spring scale reading: Less than 26.6 N (2.7 kg, 5.97 lb)
SDIA1486E
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RAX-12
< SERVICE INFORMATION >
REAR DRIVE SHAFT
5. Remove snap ring, then remove ball cage/steel ball/inner raceassembly from shaft.
6. Remove boot from shaft.
7. Remove old grease on housing with paper towels.
Wheel Side
1. Place shaft in a vice. CAUTION:
When retaining drive shaft in a vise, always use copper or aluminum plates between vise and
shaft.
2. Remove boot bands. Then remove boot from joint sub-assembly.
3. Screw a drive shaft puller 30 mm (1.18 in) or more into threaded part of joint sub-assembly. Pull joint sub-assembly out of shaft.
CAUTION:
 If joint sub-assembly cannot be removed after five ormore unsuccessful attempts, replace shaft and joint sub-
assembly as a set.
 Align sliding hammer and drive shaft and remove them by pulling directly.
4. Remove boot from shaft.
5. Remove circular clip from shaft.
6. While rotating ball cage, remove old grease on joint sub-assem- bly with paper towels.
INSPECTION AFTER DISASSEMBLY
Shaft
Replace shaft if there is any runout, cracking, or other damage.
Joint Sub-Assembly
 Make sure there is no rough rotation or unusual axial looseness.
 Make sure there is no foreign material inside joint.
 Check joint sub-assembly for compression scars, cracks, or fractures.
CAUTION:
If there are any irregular conditions of joint sub-assembly components, replace the entire joint sub-
assembly.
Sliding Joint Side (Housing)
 Make sure there are no compression scars, cracks, fractures or unusual wear of ball rolling surface.
 Make sure there is no damage to shaft screws.
 Make sure there is no deformation of boot installation parts.
Ball Cage
Make sure there are no compression scars, cracks, fractures of sliding surface.
Steel Ball
Make sure there are no compression scars, cracks, fractures or unusual wear.
Inner Race
 Check ball sliding surface for comp ression scars, cracks, or fractures.
 Make sure there is no damage to serrated part.
CAUTION:
If there are any irregular conditions in the comp onent, replace with a new set of housing, ball cage,
steel ball and inner race.
ASSEMBLY
SFA514A
SDIA0606E
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RAX-14
< SERVICE INFORMATION >
REAR DRIVE SHAFT
8. Install boot securely into grooves (indicated by * marks) shownin the figure.
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.
9. Make sure boot installation length “L” is the length indicated below. Insert a flat-bladed screwdriver or similar tool into smaller
side of boot. Bleed air from boot to prevent boot deformation.
CAUTION:
 Boot may break if boot installation length is less than standard value.
 Take care not to touch the tip of screwdriver to inside of boot.
10. Secure big and small ends of boot with new boot bands as
shown in the figure. (VK45DE)
NOTE:
Discard old boot bands; replace with new ones.
11. Secure big and small ends of boot with new boot bands. (VQ35DE) NOTE:
Discard old boot bands; replace with new ones.
a. Put boot band in the groove on drive shaft boot. Then fit pawls ( ) into holes to temporary installation.
NOTE:
For the large diameter side, fit projection (A) and guide slit (B) at
first.
b. Pinch projection on the band with suitable pliers to tighten band.
c. Insert tip of band below end of the pawl.
12. After installing housing and shaft, rotate boot to check whether or not the actual position is corre ct. If boot position is not correct,
secure boot with new boot band again.
Wheel Side
Boot installation Length “L”
VK45DE : 147.9 mm (5.82 in)
VQ35DE : 93.9 mm (3.697 in)SDIA1738E
SFA395
SDIA3557E
SDIA3558E
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SERVICE DATA AND SPECIFICATIONS (SDS)
RAX-17
< SERVICE INFORMATION >
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SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel BearingINFOID:0000000001327531
Drive ShaftINFOID:0000000001327532
Axial end play 0.05 mm (0.002 in) or less
Rotational torque At a load of 49,033 N (5,000 kg, 11,000 lb)
Less than 2.7 N·m (0.28 kg-m, 24 in-lb)
Measurement of spring scale Less than 26.6 N (2.7 kg, 5.95 lb)
Measuring point (Brake caliper installation points)
SDIA0801E
Joint Wheel side Final drive side
Engine model VQ35DE VK45DE VQ35DE VK45DE
Grease quantity 86
− 96 g
(3.03 − 3.38 oz) 140
− 160 g
(4.93 − 5.64 oz) 124
− 134 g
(4.37 − 4.72 oz) 175
− 195 g
(6.17 − 6.87 oz)
Boots installed length 97 mm (3.82 in) 141.5 mm (5.57 in) 93.9 mm (3.697 in) 147.9 mm (5.82 in)
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGRFD-7
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NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327493
Use the chart below to help you find t he cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
Refer to
RFD-17, "
Disassembly and Assembly
".
Refer to RFD-17, "
Disassembly and Assembly
".
Refer to RFD-17, "
Disassembly and Assembly
".
Refer to RFD-17, "
Disassembly and Assembly
".
Refer to RFD-17, "
Disassembly and Assembly
".
Refer to RFD-9, "
Checking Differential Gear Oil
".
NVH in PR section.
NVH in FAX, RAX, FSU and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in FAX and RAX section.
NVH in BR section.
NVH in PS section.
Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
AXLE AND SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
Symptom Noise ×××××××××××××
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RFD-10
< SERVICE INFORMATION >
FRONT OIL SEAL
FRONT OIL SEAL
Removal and InstallationINFOID:0000000001327497
CAUTION:
Verify identification stamp of replacement frequency put in the lower part of gear carrier to determine
replacement for collapsible spacer when replacing front oil seal. Refer to "IDENTIFICATION STAMP OF
REPLACEMENT FREQUENCY OF FRONT OIL SEAL". If necessary collapsible spacer replacement,
remove final drive assembly and disassemble it to re place front oil seal and collapsible spacer. Refer
to RFD-16, "
Removal and Installation" and RFD-17, "Disassembly and Assembly".
NOTE:
The reuse of collapsible spacer is pr ohibited in principle. However, it is reusable on a one-time basis
only in cases when replacing front oil seal.
IDENTIFICATION STAMP OF REPLACEMENT FREQUENCY OF FRONT OIL SEAL
 The diagonally shaded area in the figure shows stamping point for replacement frequency of front oil seal.
 The following table shows if collapsible spacer replacement is needed before replacing front oil seal.
When collapsible spacer replacement is required, disassemble
final drive assembly to replace collapsible spacer and front oil seal.
Refer to RFD-17, "
Disassembly and Assembly".
CAUTION:
Be sure to make a stamping after replacing front oil seal.
 After replacing front oil seal, make a stamping on the stamping point in accordance with the table below in order to identify replacement frequency.
CAUTION:
Stamping shall be made from left to right.
REMOVAL
1. Drain gear oil. Refer to RFD-9, "Changing Differential Gear Oil".
2. Make a judgment if a collapsible spacer replacement is required. Refer to "IDENTIFICATION STAMP OF REPLACEMENT FREQUENCY OF FRONT OIL SEAL".
3. Remove center muffler with a power tool. Refer to EX-3
.
4. Remove rear wheel sensor. Refer to BRC-52
.
5. Remove drive shaft from final drive. Then suspend it by wire etc. Refer to RAX-10
.
6. Install attachment to side flange, and then pull out the side flange with the sliding hammer.
Stamp collapsible spacer replacement
No stamp Not required
“0” or “0” on the far right of stamp Required
“01” or “1” on the far ri ght of stamp Not required
PDIA0976E
Stamp before stamping Stamping on the far right Stamping
No stamp 00
“0”
(Front oil seal was replaced once.) 101
“01”
(Collapsible spacer and front oil seal were replaced last time.) 0010
“0” is on the far right.
(Only front oil seal was replaced last time.) 1 ...01
“1” is on the far right.
(Collapsible spacer and front oil seal were replaced last time.) 0...010
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