2007 NISSAN 350Z belt

PS-1
POWER STEERING SYSTEM
G STEERING
CONTENTS
C
D
E
F
H
I
J
K
L
M
SECTION PS
A
B
PS
Revision: 2006 November2007 350Z
POWER STEERING SYSTEM
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precautions for Battery Service ................................ 2
Precautions for Steering System .............................. 2
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Troubleshooting Chart ..................................... 5
POWER STEERING FLUID ........................................ 6
Checking Fluid Level ................................................ 6
Checking Fluid Leakage ........................................... 6
Air Bleeding Hydraulic System ................................. 6
STEERING WHEEL .................................................... 7
On-Vehicle Inspection and Service .......................... 7
CHECKING CONDITION OF INSTALLATION ...... 7
CHECKING STEERING WHEEL PLAY ................ 7
CHECKING NEUTRAL POSITION ON STEER-
ING WHEEL .......................................................... 7
CHECKING STEERING WHEEL TURNING
FORCE .................................................................. 7
CHECKING FRONT WHEEL TURNING ANGLE ..... 8
Removal and Installation .......................................... 9
REMOVAL ............................................................. 9
INSTALLATION ..................................................... 9
STEERING COLUMN ............................................... 10
Removal and Installation ........................................ 10
COMPONENTS .................................................. 10
REMOVAL ........................................................... 10
INSPECTION AFTER REMOVAL ....................... 13
INSTALLATION ................................................... 13INSPECTION AFTER INSTALLATION ................ 14
Disassembly and Assembly .................................... 15
COMPONENTS ................................................... 15
DISASSEMBLY ................................................... 15
INSPECTION AFTER DISASSEMBLY ................ 16
ASSEMBLY ......................................................... 16
POWER STEERING GEAR AND LINKAGE ............ 17
Removal and Installation ........................................ 17
COMPONENTS ................................................... 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 18
POWER STEERING GEAR ...................................... 19
Disassembly and Assembly .................................... 19
COMPONENTS ................................................... 19
DISASSEMBLY ................................................... 20
INSPECTION AFTER DISASSEMBLY ................ 21
ASSEMBLY ......................................................... 22
POWER STEERING OIL PUMP ............................... 28
On-Vehicle Inspection and Service ......................... 28
CHECKING RELIEF OIL PRESSURE ................ 28
Removal and Installation ........................................ 28
REMOVAL ........................................................... 28
INSTALLATION ................................................... 29
Disassembly and Assembly .................................... 29
COMPONENTS ................................................... 29
INSPECTION BEFORE DISASSEMBLY ............. 30
DISASSEMBLY ................................................... 30
INSPECTION AFTER DISASSEMBLY ................ 30
ASSEMBLY ......................................................... 31
HYDRAULIC LINE .................................................... 33
Removal and Installation ........................................ 33
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 35
Steering Wheel ....................................................... 35
Steering Angle ........................................................ 35
Steering Column ..................................................... 35
Steering Outer Socket and Inner Socket ................ 35
Steering Gear ......................................................... 36
Oil Pump ................................................................. 36
Steering Fluid .......................................................... 36

PS-2
PRECAUTIONS
Revision: 2006 November2007 350Z
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NGS000FR
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Battery ServiceNGS000FS
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Precautions for Steering SystemNGS00003

Before disassembly, thoroughly clean the outside of the unit.

Disassembly should be done in a clean work area. It is important to prevent the internal parts from becom-
ing contaminated by dirt or other foreign matter.

For easier and proper assembly, place disassembled parts in order on a parts rack.

Use nylon cloth or paper towels to clean the parts; common shop rags can leave lint that might interfere
with their operation.

Before inspection or reassembly, carefully clan all parts in order on a parts rack.

Before assembly, apply a coat of recommended power steering fluid to hydraulic parts. Petroleum jelly
may be applied to O-rings and seals. Do not use any grease.

Replace all gaskets, seals and O-rings. Avoid damaging O-rings, seals and gaskets during installation.
Perform functional tests whenever designated.

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PS-5
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2006 November2007 350Z
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNGS00006
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PS-6PS-6PS-21PS-21PS-21PS-6PS-7PS-21EM-12PS-7PS-15PS-17PS-10PS-10PS-17
NVH in PR section
NVH in RFD section
NVH in FAX, RAX, FSU, RSU section
NVH in WT section
NVH in WT section
NVH in RAX section
NVH in BR section
Possible cause and suspected parts
Fluid level
Air in hydraulic system
Outer socket ball joint swinging force
Outer socket ball joint sliding torque
Outer socket ball joint end play
Steering fluid leakage
Steering wheel play
Steering gear rack sliding force
Drive belt looseness
Improper steering wheel
Improper installation or looseness of tilt lock lever
Mounting rubber deterioration
Steering column deformation or damage
Improper installation or looseness of steering column
Steering linkage looseness
PROPELLER SHAFT
DIFFERENTIAL
AXLE and SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
SymptomNoise× × ××××× × × ×××××× ×
Shake××× × ×××× ×
Vibration××××× × ×× ×
Shimmy××× × ××× ×
Judder××××××

PS-28
POWER STEERING OIL PUMP
Revision: 2006 November2007 350Z
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceNGS0000H
CHECKING RELIEF OIL PRESSURE
CAUTION:
Before starting work, confirm belt tension is proper.
1. Connect oil pressure gauge (SST) and oil pressure gauge
adapter (SST) between oil pump discharge connector and high
pressure hose and then bleed air from the hydraulic circuit.
2. Start engine. Allow engine to run until tank temperature reaches
50 to 80°C (122 to 176°F).
CAUTION:

Warm up engine with shut-off valve fully opened. If
engine is started with shut-off valve closed, fluid pres-
sure in power steering pump increases to maximum. This
will raise fluid temperature excessively.

Be careful not to contact hose with belt when engine is
started.
3. With engine at idle, close shut-off valve and read the relief oil
pressure.
CAUTION:
Do not close shut-off valve of pressure gauge for more than 10 seconds.
4. After measurement, open shut-off valve slowly.

If relief oil pressure is outside the specification, disassemble and repair oil pump. Refer to PS-29, "Dis-
assembly and Assembly" .
5. After inspection, disconnect oil pressure gauge (SST) and oil pressure gauge adapter (SST) from hydrau-
lic circuit, connect oil pump discharge connector and high pressure hose. Add fluid and bleed air from
hydraulic circuit thoroughly. Refer to PS-6, "
Air Bleeding Hydraulic System" .
Removal and InstallationNGS0000I
REMOVAL
1. Remove engine cover.
2. Remove air cleaner box.
3. Drain water from radiator upper tank, then remove radiator upper hose.
4. Remove radiator fan shroud. Refer to CO-13, "
Removal and Installation" .
SGIA0814E
Relief oil pressure:
9,600 - 10,200 kPa (97.9 - 104 kg/cm
2 , 1,392 - 1,479 psi)
SGIA0813E

POWER STEERING OIL PUMP
PS-29
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2006 November2007 350Z
5. Loosen idler pulley, then remove belt.
6. Drain power steering fluid from reservoir tank.
7. Remove piping of high pressure and low pressure (drain fluid
from their pipings)
8. Remove bolt common to water pump and power steering pump.
9. Remove bolt then remove power steering pump.
INSTALLATION
Refer to PS-33, "HYDRAULIC LINE" for tightening torque. Install in the reverse order of removal.

After installation, adjust belt tension. Refer to EM-12, "DRIVE BELTS" .

After installation, bleed air. Refer to PS-6, "Air Bleeding Hydraulic System" .
Disassembly and AssemblyNGS0000J
COMPONENTS
SGIA0376E
1. Plug 2. O-ring D 3. Flow control valve spring
4. Relief valve assembly 5. Flow control valve assembly 6. Shaft kit
7. Oil seal 8. Bracket 9. Body assembly
10. Suction connector assembly 11. O-ring E 12. O-ring C
13. O-ring B 14. Cartridge assembly 15. O-ring A
16. Cover assembly 17. Side plate 18. Vane
19. Rotor snap ring 20. Cam ring 21. Rotor
22. Dowel pin
SGIA0774E