suspension INFINITI FX35 2006 Repair Manual

PS-10
STEERING WHEEL
Revision: 2006 December 2006 FX35/FX45
STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceNGS000BW
CHECKING CONDITION OF INSTALLATION

Check installation condition of steering gear assembly, front suspension, axle and steering column.

Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.

Check if the mounting bolts for steering gear assembly are loose
or not. Refer to PS-17, "
POWER STEERING GEAR AND LINK-
AGE" .
CHECKING STEERING WHEEL PLAY
1. Set tires to the straight ahead, start engine, then turn steering wheel to the left and right lightly, and mea-
sure steering wheel movement on the outer circumference when steering wheel is turned up to the point
where tires start moving.
CHECKING NEUTRAL POSITION ON STEERING WHEEL
Check neutral position on steering wheel after confirming that front wheel alignment is correct. Refer to FSU-
6, "Wheel Alignment Inspection" .
1. Set vehicle to the straight direction, check if steering wheel is in the neutral position.
2. If it is not in the neutral position, remove steering wheel and reinstall it correctly.
3. If the neutral position cannot adjust in the two teeth of steering gear assembly, loosen outer socket lock nuts of steering outer sockets, then adjust outer socket by the same amount in the opposite direction.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Remove driver air bag module from steering wheel. Refer to SRS-38, "
DRIVER AIR BAG MODULE" .
3. Start engine at idle, make steering fluid reach to normal operat- ing temperature [50 to 80 °C (122 to 176 °F)], then check steering
wheel turning torque with pre-load gauge (SST).
4. If steering wheel turning force is out of the specification, check relief hydraulic pressure of oil pump. Refer to PS-29, "
POWER
STEERING OIL PUMP" .
End play of the axle direction for steering wheel : 0 mm (0 in)
SGIA0546E
Steering wheel play on the outer circumference : 0
− 35 mm (0 − 1.38 in)
Turning torque : 7.45 N·m (0.76 kg-m, 66 in-lb) or less
SGIA0459E

STEERING WHEEL PS-11
C
D E
F
H I
J
K L
M A
B
PS
Revision: 2006 December 2006 FX35/FX45
CHECKING FRONT WHEEL TURNING ANGLE

Check front wheel turning angle after the toe-in inspection.
Place front wheels on turning radius gauges and rear wheels on
stands so that vehicle can be level. Check the maximum inner
and outer wheel turning angles for LH and RH road wheels.

Start engine and run at idle, turn steering wheel all the way right
and left, measure the turning angle.

Any turning angles are not adjustable. If any of steering angles
are out of the specification, check if the following parts are wear
or damaged.
–Steering gear
–St ee rin g c o lum n
–Front suspension components
If found that they are worn or damaged, replace them with new ones respectively.
Removal and InstallationNGS000BX
Refer to PS-12, "STEERING COLUMN" .
FAA0016D
Tire Size 18 inch and 20 inch
Inner wheel (Angle: A) Minimum 32
°00’ (32.0 °)
Nominal 35 °00’ (35.0 °)
Maximum 36 °00’ (36.0 °)
Outer wheel (Angle: B) Nominal 30 °00’ (30.0 °)
SGIA0055E

PREPARATION RAX-3
C E F
G H
I
J
K L
M A
B
RAX
Revision: 2006 December 2006 FX35/FX45
PREPARATIONPFP:00002
Special Service Tools (SST)NDS000CE
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsNDS000CF
Tool number
(Kent-Moore No.)
Tool name Description
ST33251000
( — )
Drift

Removing wheel hub

Removing wheel bearing outer side
inner race

Installing wheel hub

Inspection of wheel bearing rotating
torque
ST35300000
( — )
Drift
a: 45 mm (1.77 in) dia.
b: 59 mm (2.32 in) dia.

Installing wheel hub

Inspection of wheel bearing rotating
torque
KV40100900
( — )
Drift
a: 52 mm (2.05 in) dia.
b: — Wheel bearing rotating torque
inspection
KV38100500
( — )
Drift
a: 80 mm (3.15 in) dia.
b: 60 mm (2.36 in) dia. Installing drive shaft plug
KV38102200
( — )
Drift
a: 90 mm (3.54 in) dia.
b: 31 mm (1.22 in) dia. Installing drive shaft plug
ZZA0982D
ZZA0881D
ZZA0539D
ZZA0701D
ZZA0920D
Tool name
Description
Power tool

Removing wheel nuts

Removing brake caliper assembly

Removing wheel hub and bearing
assembly

Removing suspension links

Removing drive shaft fixing bolts
and nutsPBIC0190E

RAX-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 December 2006 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000CG
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
× : Applicable Reference page
—
RAX-9—
RAX-5—
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 section
NVH 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
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom DRIVE
SHAFT Noise
×× ×××××× ××
Shake ×× ×××××××
REAR
AXLE Noise
×× ××× ×××××
Shake ×××××××××
Vibration ×××××××
Shimmy ×× ×××××
Judder × × ×× ××
Poor quality ride or handling ×× × ××

RAX-6
REAR WHEEL HUB AND KNUCKLE
Revision: 2006 December 2006 FX35/FX45
9. Remove parking brake cable and parking brake shoe from back plate. Refer to PB-6, "PARKING BRAKE
SHOE" and PB-4, "PARKING BRAKE CONTROL" .
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, "
REAR LOWER LINK & COIL SPRING" .
14. Remove fixing bolts and nuts in axle side of front 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 nut 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 torque of suspension arm ball joint. Refer to RSU-11,
"INSPECTION AFTER REMOVAL" .
INSTALLATION

Refer to RAX-5, "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 condi-
tions with tires on level ground, Check wheel alignment. Refer to RSU-5, "
Wheel Alignment Inspection" .

After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING RFD-7
C E F
G H
I
J
K L
M A
B
RFD
Revision: 2006 December 2006 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000BK
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
× : Applicable Reference page
Refer to
RFD-26, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to RFD-20, "
Tooth Contact
" .
Refer to RFD-26, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to RFD-21, "
Backlash
" .
Refer to RFD-22, "
Companion Flange Runout
" .
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
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom Noise ×××××××××××××

RSU-1
REAR SUSPENSION
E SUSPENSION
CONTENTS
C
D
F
G H
I
J
K L
M
SECTION RSU
A
B
RSU
Revision: 2006 December 2006 FX35/FX45
REAR SUSPENSION
PRECAUTIONS ..................................................... ..... 2
Cautions .............................................................. ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tools (SST) ................................ ..... 3
Commercial Service Tools ................................... ..... 3
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 4
NVH Troubleshooting Chart ................................ ..... 4
REAR SUSPENSION ASSEMBLY ........................ ..... 5
On-Vehicle Inspection and Service ..................... ..... 5
INSPECTION OF BALL JOINT END PLAY ..... ..... 5
SHOCK ABSORBER INSPECTION ................ ..... 5
Wheel Alignment Inspection ................................ ..... 5
DESCRIPTION ................................................. ..... 5
PRELIMINARY INSPECTION .......................... ..... 5
GENERAL INFORMATION AND RECOMMEN-
DATIONS ......................................................... ..... 5
THE ALIGNMENT PROCESS ......................... ..... 6
CAMBER INSPECTION ................................... ..... 6
TOE-IN ............................................................. ..... 6
Removal and installation ..................................... ..... 7
COMPONENTS ............................................... ..... 7
REMOVAL ........................................................ ..... 8
INSTALLATION ................................................ ..... 8
SHOCK ABSORBER ............................................. ..... 9
Removal and Installation ..................................... ..... 9
REMOVAL ........................................................ ..... 9
INSPECTION AFTER REMOVAL .................... ..... 9
INSTALLATION ................................................ ..... 9
Disassembly and Assembly ................................ ..... 9
DISASSEMBLY ................................................ ..... 9
INSPECTION AFTER DISASSEMBLY ............ ... 10
ASSEMBLY ...................................................... ... 10 SUSPENSION ARM ...............................................
... 11
Removal and Installation ..................................... ... 11
REMOVAL ........................................................ ... 11
INSPECTION AFTER REMOVAL .................... ... 11
INSTALLATION ................................................ ... 12
RADIUS ROD ......................................................... ... 13
Removal and Installation ..................................... ... 13
REMOVAL ........................................................ ... 13
INSPECTION AFTER REMOVAL .................... ... 13
INSTALLATION ................................................ ... 13
FRONT LOWER LINK ........................................... ... 14
Removal and Installation ..................................... ... 14
REMOVAL ........................................................ ... 14
INSPECTION AFTER REMOVAL .................... ... 14
INSTALLATION ................................................ ... 14
REAR LOWER LINK & COIL SPRING .................. ... 15
Removal and Installation ..................................... ... 15
REMOVAL ........................................................ ... 15
INSPECTION AFTER REMOVAL .................... ... 15
INSTALLATION ................................................ ... 15
STABILIZER BAR .................................................. ... 16
Removal and Installation ..................................... ... 16
REMOVAL ........................................................ ... 16
INSPECTION AFTER REMOVAL .................... ... 16
INSTALLATION ................................................ ... 16
REAR SUSPENSION MEMBER ............................ ... 17
Removal and Installation ..................................... ... 17
REMOVAL ........................................................ ... 17
INSPECTION AFTER REMOVAL .................... ... 17
INSTALLATION ................................................ ... 17
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 18
Wheel Alignment (Unladen*) ............................... ... 18
Ball Joint .............................................................. ... 18
Wheelarch Height (Unladen*) .............................. ... 18

RSU-2
PRECAUTIONS
Revision: 2006 December 2006 FX35/FX45
PRECAUTIONSPFP:00001
CautionsNES000G0

When installing rubber bushings, final tightening must be carried out under unladen conditions with tires
on level ground. Oil will shorten the life of rubber bushings. Be sure to wipe off any spilled oil.

Unladen conditions means that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.

After servicing suspension parts, be sure to check wheel alignment.

Caulking nuts are not reusable. Always use new ones when installing. Since new caulking nuts are pre-
oiled, tighten as they are.

PREPARATION RSU-3
C
D
F
G H
I
J
K L
M A
B
RSU
Revision: 2006 December 2006 FX35/FX45
PREPARATIONPFP:00002
Special Service Tools (SST)NES000G1
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsNES000G2
Tool number
(Kent-Moore No.)
Tool name Description
ST3127S000
(See J −25742-1)
Preload gauge
1. GG91030000
Torque wrench (J −25765)
2. HT62940000 ( — )
Socket adapter (1/2 ″)
3. HT62900000 ( — )
Socket adapter (3/8 ″) Measuring rotating torque of ball joint
NT124
Tool name
Description
Power tool

Removing wheel nuts

Removing brake caliper assembly

Removing rear suspension component
parts
PBIC0190E

RSU-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 December 2006 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNES000G3
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
× : Applicable Reference page
RSU-7RSU-9—
—
—
RSU-7RSU-5RSU-16
NVH in PR section
NVH in RFD section
NVH in RAX and RSU section NVH in WT section
NVH in WT section
NVH in RAX section NVH in BR sectionNVH in PS section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom REAR SUSPENSION Noise
×××××× ××××××××
Shake ×××× × × ××××××
Vibration ××××× × ×× × ×
Shimmy ×××× × ××× ××
Judder ××× ××× ××
Poor quality ride or
handling ××××× ×× ×××