2007 NISSAN 350Z steering

FSU-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 November2007 350Z
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNES00004
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
FSU-8FSU-11—
—
—
FSU-8FSU-6FSU-18
NVH in PR section
NVH in RFD section.
NVH in FAX and FSU section.
NVH in WT section.
NVH in WT section.
NVH in RAX section.
NVH in BR section.
NVH 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
FRONT AXLE AND FRONT SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom FRONT SUSPENSIONNoise××××× × ××× ×××××
Shake×××× × × × ×××××
Vibration××××× × ×× × ×
Shimmy×××× × ××× ××
Judder××× ××× ××
Poor quality ride or han-
dling×× × × × ×× × × ×

FRONT SUSPENSION ASSEMBLY
FSU-5
C
D
F
G
H
I
J
K
L
MA
B
FSU
Revision: 2006 November2007 350Z
FRONT SUSPENSION ASSEMBLYPFP:54010
On-Vehicle InspectionNES00005
Make sure the mounting conditions (looseness, back lash) of each component and component statues (wear,
damage) are normal.
INSPECTION OF BALL JOINT END PLAY OF EACH LINK
1. Set front wheels in a straight-ahead position. Do not depress brake pedal.
2. Check ball joint axial end play of each link.
CAUTION:
Be careful not to damage ball joint boot.
Upper Link Ball Joint

Measure axial end play by installing and moving up/down with
an iron pry bar or something similar between upper link and
steering knuckle.
Steering Knuckle Lower Ball Joint

Measure axial end play by installing and moving up/down with
an iron pry bar or something similar between steering knuckle
and wheel.
Compression Rod Ball Joint

Measure axial end play by installing and moving up/down with
an iron pry bar or something similar between compression rod
and transverse link.
SHOCK ABSORBER INSPECTION
Check shock absorber for oil leakage, damage and replace if necessary. Refer to FSU-10, "COIL SPRING
AND SHOCK ABSORBER" . Axial end play : 0 mm (0 in)
SEIA0242J
Axial end play : 0 mm (0 in)
SEIA0243J
Axial end play : 0 mm (0 in)
SEIA0244J

FSU-6
FRONT SUSPENSION ASSEMBLY
Revision: 2006 November2007 350Z
Wheel Alignment InspectionNES00006
DESCRIPTION

Measure wheel alignment under unladen conditions.
NOTE:
Unladen conditions mean that fuel, engine coolant, and lubricant are full. Spare tire, jack, hand tools and
mats are designated positions.
PRELIMINARY CHECK

Check tires for improper air pressure and wear.

Check road wheels for runout.

Check wheel bearing axial end play.

Check ball joint axial end play of compression rod, upper link, and steering knuckle

Check shock absorber operation.

Check each mounting part of axle and suspension for looseness and deformation.

Check each link, rod and member for cracks, deformation and other damage.

Check vehicle posture.
GENERAL INFORMATION AND RECOMMENDATIONS

A four-wheel thrust alignment should be performed.
–This type of alignment is recommended for any NISSAN/INFINITI vehicle.
–The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel is
centered.
–The alignment rack itself should be capable of accepting any NISSAN/INFINITI vehicle.
–The rack should be checked to ensure that it is level.

Make sure the machine is properly calibrated.
–Your alignment equipment should be regularly calibrated in order to give correct information.
–Check with the manufacturer of your specific equipment for their recommended Service/Calibration
Schedule.

FRONT SUSPENSION ASSEMBLY
FSU-9
C
D
F
G
H
I
J
K
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MA
B
FSU
Revision: 2006 November2007 350Z
Removal and InstallationNES00008
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to BR-
26, "FRONT DISC BRAKE" .
3. Remove undercover with power tool.
4. Remove fixing bolts and nuts, then remove front cross bar from vehicle with power tool.
5. Remove steering hydraulic piping bracket from front suspension member. Refer to PS-33, "
HYDRAULIC
LINE" .
6. Remove steering gear and front suspension member attachment bolts and hang steering gear on vehicle.
Refer to PS-17, "
POWER STEERING GEAR AND LINKAGE" .
7. Set jack under engine.
CAUTION:
When setting jack to engine, use a wooden block or an equivalent for the setting.
8. Remove fixing bolt and nut between shock absorber and transverse link with power tool.
9. Remove cotter pin of upper link ball joint, then loosen mounting nut.
10. Use a ball joint remover (suitable tool) to remove upper link from steering knuckle. Be careful not to dam-
age ball joint boot.
CAUTION:
Tighten temporarily mounting nut to prevent damage to threads and to prevent ball joint remover
(suitable tool) from coming off.
11. Remove fixing nut and washer located at the bottom of stabilizer connecting rod, and then remove stabi-
lizer connecting rod from transverse link with power tool.
12. Remove fixing nuts between engine mounting insulator and front suspension member. Refer to EM-101,
"ENGINE ASSEMBLY" .
13. Remove fixing nuts between front suspension member and body with power tool.
14. Remove front suspension assembly form vehicle.
INSTALLATION

Refer to FSU-8, "Components" 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 shock absorber lower side (rubber bushing) under unladen condition with tires
on ground. Check wheel alignment. Refer to FSU-21, "
SERVICE DATA AND SPECIFICATIONS (SDS)" .
1. Mounting insulator 2. Bound bumper 3. Spring upper seat
4. Coil spring 5. Shock absorber 6. Stopper rubber
7. Upper link 8. Cotter pin 9. Front axle
10. Steering stopper bracket 11. Compression rod 12. Washer
13. Transverse link 14. Stabilizer connecting rod 15. Tower bar
16. Front suspension member 17. Stabilizer bar 18. Stabilizer clamp bracket
19. Stabilizer bushing 20. Stabilizer clamp 21. Front cross bar
Refer to GI-11, "
Components" ,for the symbols in the figure.

TRANSVERSE LINK
FSU-13
C
D
F
G
H
I
J
K
L
MA
B
FSU
Revision: 2006 November2007 350Z
TRANSVERSE LINKPFP:54500
Removal and InstallationNES0000B
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove undercover with power tool.
3. Remove mounting nut and washer on lower portion of stabilizer connecting rod with power tool.
4. Remove mounting nut between transverse link and shock absorber on lower position.
5. Remove mounting nut between transverse link and front suspension member with power tool.
6. Remove transverse link from steering knuckle. Refer to FAX-4, "
FRONT WHEEL HUB AND KNUCKLE" .
7. Remove transverse link from vehicle.
INSPECTION AFTER REMOVAL
Visual Inspection
Check transverse link and bushing for deformation, cracks, or damage. If any non-standard condition is found,
replace it.
INSTALLATION

Refer to FSU-8, "Components" 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 front suspension member installation position and shock absorber lower side
(rubber bushing) under unladen condition with tires on ground. Check wheel alignment. Refer to FSU-21,
"SERVICE DATA AND SPECIFICATIONS (SDS)" .

FSU-14
UPPER LINK
Revision: 2006 November2007 350Z
UPPER LINKPFP:54524
Removal and InstallationNES0000C
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove undercover with power tool.
3. Remove shock absorber. Refer to FSU-10, "
COIL SPRING AND SHOCK ABSORBER" .
4. Remove cotter pin of upper link ball joint, then loosen mounting nut.
5. Use a ball joint remover (suitable tool) to remove upper link from steering knuckle. Be careful not to dam-
age ball joint boot.
CAUTION:
Tighten temporarily mounting nut to prevent damage to threads and to prevent ball joint remover
(suitable tool) from coming off.
6. Remove bolts holding upper link to body with power tool.
7. Remove upper link from vehicle.
INSPECTION AFTER REMOVAL
Visual Inspection

Check upper link and bushing for deformation, cracks, or damage. If any non-standard condition is found,
replace it.

Check boot of ball joint for cracks, or other damage, and also for grease leakage. If any non-standard con-
dition is found, replace it.
Ball Joint Inspection

Manually move ball stud to confirm it moves smoothly with no binding.
Swing Torque Inspection
NOTE:
Before measurement, move ball joint at least ten times by hand to check for smooth movement.

Hook spring balance at ball stud. Confirm spring balance mea-
surement value is within the specifications when ball stud begins
moving.

If it is outside the specified range, replace upper link assembly.
Rotating Torque Inspection

Attach mounting nut to ball stud. Check that rotating torque is
within specifications with a preload gauge.

If it is outside the specified range, replace upper link assembly.Swing torque:
Less than 2.0 N·m (0.20 kg-m, 18 in-lb)
Measured value of spring balance:
Less than 34.8 N (3.5 kg, 7.8 lb)
SEIA0523E
Tool number A: ST3127S000 (J−25765−A)
Rotating torque:
Less than 2.0 N·m (0.20 kg-m, 18 in-lb)
PDIA1258E

FSU-16
COMPRESSION ROD
Revision: 2006 November2007 350Z
COMPRESSION RODPFP:54468
Removal and InstallationNES0000D
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove undercover with power tool.
3. Remove front cross bar from vehicle with power tool.
4. Remove cotter pin of compression rod ball joint, and loosen nut.
5. Use a ball joint remover (suitable tool) to remove compression rod from steering knuckle. 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.
6. Remove compression rod from vehicle.
INSPECTION AFTER REMOVAL
Visual Inspection

Check compression rod and bushing for deformation, cracks, or damage. If any non-standard condition is
found, replace it.

Check boot of ball joint for cracks, or other damage, and also for grease leakage. If any non-standard con-
dition is found, replace it.
Ball Joint Inspection

Manually move ball stud to confirm it moves smoothly with no binding.
Swing Torque Inspection
NOTE:
Before measurement, move ball joint at least ten times by hand to check for smooth movement.

Hook spring balance at ball stud. Confirm spring balance mea-
surement value is within the specifications when ball stud begins
moving.

If it is outside the specified range, replace compression rod
assembly.
Rotating Torque Inspection

Attach mounting nut to ball stud. Check that rotating torque is
within the specifications with a preload gauge.

If it is outside the specified range, replace compression rod
assembly.Swing torque:
0.147 - 2.45 N·m (0.02 - 0.24 kg-m, 2 - 21 in-lb)
Measured value of spring balance:
2.37 - 39.5 N (0.24 - 4.03 kg, 0.53 - 8.88 lb)
SEIA0523E
Tool number A: ST3127S000 (J−25765−A)
Rotating torque:
0.147 - 2.45 N·m (0.02 - 0.24 kg-m, 2 - 21 in-lb)
PDIA1258E

FRONT SUSPENSION MEMBER
FSU-19
C
D
F
G
H
I
J
K
L
MA
B
FSU
Revision: 2006 November2007 350Z
FRONT SUSPENSION MEMBERPFP:54401
Removal and InstallationNES0000F
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove undercover with power tool.
3. Remove fixing bolts and nuts, then remove front cross bar from vehicle with power tool.
4. Remove steering hydraulic piping bracket from front suspension member. Refer to PS-33, "
HYDRAULIC
LINE" .
5. Remove steering gear and front suspension member attachment bolts and hang steering gear on vehicle.
Refer to PS-17, "
POWER STEERING GEAR AND LINKAGE" .
6. Remove transverse link from front suspension member with power tool. Refer to FSU-13, "
TRANSVERSE
LINK" .
7. Set jack under engine.
CAUTION:
When setting jack to engine, use a wooden block or an equivalent for the setting.
8. Remove fixing nuts between engine mounting insulator and front suspension member. Refer to EM-101,
"ENGINE ASSEMBLY" .
9. Remove fixing nuts between front suspension member and body with power tool.
10. Remove front suspension member from vehicle.
INSPECTION AFTER REMOVAL
Check front suspension member for deformation, cracks, or any other damage. Replace if necessary.
INSTALLATION

Refer to FSU-8, "Components" for tightening torque. Install in the reverse order of removal.

Perform final tightening of installation position between front suspension member and transverse link (rub-
ber bushing) under unladen condition with tires on level ground. Check wheel alignment. Refer to FSU-21,
"SERVICE DATA AND SPECIFICATIONS (SDS)" .