air INFINITI FX35 2005 Service Manual

PS-8
POWER STEERING FLUID
Revision: 2005 July 2005 FX
POWER STEERING FLUIDPFP:KLF20
Checking Fluid LevelAGS000GT

Stop engine before performing a fluid level check.

Ensure that fluid level is between the MAX range and MIN level.

Because fluid level differs within the HOT range and the COLD
range, check it carefully.
CAUTION:

Do not overfill the Max level.

Do not reuse any used power steering fluid.

Recommended fluid is Genuine NISSAN PSF or equivalent.
Checking Fluid LeakageAGS000GU
Check the hydraulic piping lines for improper attachment and for
leaks, cracks, damage, loose connections, chafing or deterioration.
1. Run engine until fluid temperature reaches 50 to 80 ° C (122 to
176 °F) in reservoir tank. Keep engine speed idle.
2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each “lock” position for five seconds to check fluid leakage.
CAUTION:
Do not hold steering wheel in a locked position for more
than 10 seconds. (There is the possibility that oil pump may
be damaged.)
4. If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not over tighten con- nector as this can damage O-ring, washer and connector.
5. If fluid leakage from oil pump is noticed, check oil pump. Refer to PS-31, "
POWER STEERING OIL
PUMP" .
6. Check steering gear boots for accumulation of fluid indicating a from steering gear.
Air Bleeding Hydraulic SystemAGS000GV
Incomplete air bleeding causes the following. When this happens, bleed air again.

Generation of air bubbles in reservoir tank.

Generation of clicking noise in oil pump.

Excessive buzzing in oil pump.
NOTE:
When vehicle is stationary or while steering wheel is being turned slowly, some noise may be heard from
oil pump or gear. This noise is normal and does not affect any system.
1. Stop engine, and then turn steering wheel fully to right and left several times. CAUTION:
Do not allow steering fluid reservoir tank to go below the low-level line. Check tank frequently and
add fluid as needed.
2. Run engine at idle speed. Turn steering wheel fully to the right and then fully to the left, and keep for about three seconds. Then check whether a fluid leakage has occurred.
3. Repeat the 2nd procedure several times at about three seconds intervals. CAUTION:
Do not hold steering wheel in the locked position more than 10 seconds. (There is the possibility
that oil pump may be damaged.)
4. Check generation of air bubbles and cloud in fluid. HOT : Fluid temperatures from 50 to 80
°C (122 to
176 °F)
COLD : Fluid temperatures from 0 to 30 °C (32 to 86 °F)
SGIA0232J
SGIA0506E

POWER STEERING FLUID PS-9
C
D E
F
H I
J
K L
M A
B
PS
Revision: 2005 July 2005 FX
5. If air bubbles and the cloud don't fade, stop engine, hold air bleeding until air bubbles and the cloud fade.
Perform the 2nd and the 3rd procedures again.
6. Stop engine, check fluid level.

PS-10
STEERING WHEEL
Revision: 2005 July 2005 FX
STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceAGS000GW
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-19, "
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-35, "
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-31, "
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

PS-12
STEERING COLUMN
Revision: 2005 July 2005 FX
STEERING COLUMNPFP:48810
Removal and InstallationAGS000GY
CAUTION:

Care must be taken not to give axial impact to steering column assembly during removal and
installation.

Care must be taken not to move steering gear during removal of steering column assembly.
REMOVAL
1. Set vehicle to the straight ahead-direction.
2. Remove driver air bag module from steering wheel. Refer to SRS-35, "
DRIVER AIR BAG MODULE" .
3. Disconnect steering switch connector, remove steering wheel lock nut, then remove steering wheel. Refer to SRS-37, "
SPIRAL CABLE" .
4. Remove steering column cover. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
5. Remove combination switch & spiral cable from steering column assembly. Refer to SRS-37, "
SPIRAL
CABLE" .
6. Remove instrument lower panel (driver side). Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
7. Remove combination meter. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
1. Steering wheel lock nut 2. Steering wheel 3. Lid
4. Combination switch & spiral cable 5. Steering column assembly 6. Collar
7. Hole cover seal 8. Clamp 9. Hole cover
10. Lower shaft 11. Lower joint 12. Steering column assembly (with Automatic Drive Positioner)
SGIA1430E

PS-14
STEERING COLUMN
Revision: 2005 July 2005 FX
INSPECTION AFTER REMOVAL

Check if there is something wrong with jacket tube of steering column assembly and collar etc. And then if
they are damaged, replace with new one.

If vehicle has a collision light shocked, check column length “L”
as shown in the figure. Then if it is out of the specified value,
replace with new one.

Check the turning torque of steering column with preload gauge
(SST). If it is out of the specified value, repair it or replace with
new one.
INSTALLATION

Refer to PS-12, "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.

After removing/installing or replacing steering components, check wheel alignment. Refer to FSU-6,
"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" .
INSPECTION AFTER INSTALLATION

Check tilt and telescopic mechanism operating range “L1 ”, “L2 ”
as shown in the figure.

Check if steering wheel operation can turn to the end of the left
and right smoothly. Steering column length “L”: 572 mm (22.52 in)
Turning torque : 0 − 0.2 N·m (0 − 0.021 kg-m, 0 − 1 in-lb)
SGIA0556E
Tilt operating range “L1 ” : 28 - 32 mm (1.1 - 1.26 in)
Telescopic operating range
“L
2 ” : 18 - 22 mm (0.71 - 0.87 in)
SGIA1431E

POWER STEERING GEAR AND LINKAGE PS-21
C
D E
F
H I
J
K L
M A
B
PS
Revision: 2005 July 2005 FX

When steering wheel is set in the straight ahead direction, con-
firm slit of lower joint fits with the projection on rear cover cap,
furthermore marking position on steering gear assembly nearly
fits with the projection on rear cover cap.

After installation, bleed air from piping. Refer to PS-8, "Air
Bleeding Hydraulic System" .
INSPECTION AFTER INSTALLATION
Check if steering wheel turns smoothly when it is turned several times fully to the end of the left and right.
SGIA0539E

POWER STEERING OIL PUMP PS-31
C
D E
F
H I
J
K L
M A
B
PS
Revision: 2005 July 2005 FX
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceAGS000H2
CHECKING RELIEF OIL PRESSURE (VQ35DE MODELS)
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-33, "
Disas-
sembly and Assembly (VQ35DE Models)" .
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-8, "
Air Bleeding Hydraulic System" .
CHECKING RELIEF OIL PRESSURE (VK45DE MODELS)
CAUTION:
Before starting work, confirm belt tension is proper.
SGIA0570E
SST
Pressure gauge KV48103500
(J26357&J26357-10)
Oil pump side Eye joint KV48102500-01 ( — )
Washer KV48102500-04 ( — )
Bolt KV48102500-03 ( — )
High pressure
piping side Flare joint KV48102500-02 ( — )
Washer KV48102500-04 ( — )
Bolt KV48102500-03 ( — )
Relief oil pressure: 9,900 - 10,700 kPa (101 - 109.1 kg/cm
2 , 1436 - 1552 psi)
SGIA0522E

PS-32
POWER STEERING OIL PUMP
Revision: 2005 July 2005 FX
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 pressure 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-37, "
Disas-
sembly and Assembly (VK45DE Models)" .
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-8, "
Air Bleeding Hydraulic System" .
Removal and Installation (VQ35DE Models)AGS000HI
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Loosen belt tensioner adjust screw, then remove belt from oil pump pulley. Refer to EM-15, "
DRIVE
BELTS" .
3. Drain power steering fluid from reservoir tank.
SGIA0570E
SST
Pressure gauge and shut-off valve KV48103500
(J26357 and
J26357-10)
Oil pump side Connector A and
O-ring KV48105300-4
and 5295262U10
(—)
Eye-bolt and O-
ring KV48105300-3
and 5295262U00
(—)
High pressure
piping side Connector B and
O-ring KV48105300-1
and 5295262U00
(—)
Nut KV48105300-2 ( — )
SGIA0572E
Relief oil pressure:
9,900 - 10,700 kPa (101 - 109.1 kg/cm
2 , 1436 - 1552 psi)

POWER STEERING OIL PUMP PS-33
C
D E
F
H I
J
K L
M A
B
PS
Revision: 2005 July 2005 FX
4. Remove piping of high pressure and low pressure (drain fluid from their pipings). Refer to PS-41,
"HYDRAULIC LINE" .
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-41, "HYDRAULIC LINE" for tightening torque. Install in the reverse order removal.

After installation, adjust belt tension. Refer to EM-15, "DRIVE BELTS" .

After installation, bleed air. Refer to PS-8, "Air Bleeding Hydraulic System" .
Removal and Installation (VK45DE Models)AGS000HJ
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Remove power steering oil pump belt from auto tensioner. Refer to EM-173, "
DRIVE BELTS" .
3. Drain power steering fluid from reservoir tank.
4. Remove piping of high pressure and low pressure from power steering oil pump (drain fluid from their pip- ings). Refer to PS-41, "
HYDRAULIC LINE" .
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-41, "HYDRAULIC LINE" for tightening torque. Install in the reverse order removal.
After installation, bleed air. Refer to PS-8, "
Air Bleeding Hydraulic System" .
NOTE:
Adjustment of belt tension is no necessary because engine of this model equips auto tensioner.
Disassembly and Assembly (VQ35DE Models)AGS000HE
INSPECTION BEFORE DISASSEMBLY
Disassemble power steering oil pump only if the following items are found.

Oil leakage from oil pump

Deformed or damaged pulley
1. Rear cover 2. Teflon ring 3. O-ring
4. Rear side plate 5. Rotor snap ring 6. Dowel pin
7. Cam ring 8. Rotor 9. Vane
10. Cartridge 11. Front side plate 12. O-ring
13. Flow control valve A 14. Spring 15. Flow control valve B assembly
16. Body assembly 17. Oil seal 18. Pulley
19. O-ring 20. Suction pipe 21. Bracket
SGIA0622E

RAX-2
PRECAUTIONS
Revision: 2005 July 2005 FX
PRECAUTIONSPFP:00001
CautionADS000C0
Observe the following precautions when disassembling and servicing drive shaft.

Perform work in a location which is as dust-free as possible.

Before disassembling and servicing, clean the outside of parts.

Prevention of the entry of foreign objects must be taken into account during disassembly of the service
location.

Disassembled parts must be carefully reassembled in the correct order. If work is interrupted, a clean
cover must be placed over parts.

Paper shop cloths must be used. Fabric shop cloths must not be used because of the danger of lint adher-
ing to parts.

Disassembled parts (except for rubber parts) should be cleaned with kerosene which shall be removed by
blowing with air or wiping with paper shop cloths.