2008 INFINITI FX35 installation

PS-14
< SERVICE INFORMATION >
STEERING COLUMN
 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 "COMPONENTS" 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-5, "
Wheel
Alignment Inspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
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.
Disassembly and AssemblyINFOID:0000000001327715
COMPONENTS
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
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POWER STEERING GEAR AND LINKAGEPS-17
< SERVICE INFORMATION >
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M A
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PS
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POWER STEERING GEAR AND LINKAGE
Removal and InstallationINFOID:0000000001327716
COMPONENTS
CAUTION:
Spiral cable may snap due to steering operation if steering column is separated from steering gear
assembly. Therefore fix steering wheel with a string to avoid turns.
REMOVAL
1. Set wheels in the straight-ahead position.
2. Remove tires from vehicle with power tool.
3. Remove undercover with power tool.
4. Confirm 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.
5. Remove cotter pin at steeri ng outer socket, then loosen mount-
ing nut.
6. Use a ball joint remover (SST) to remove steering outer socket 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 jo int remover (SST) from com-
ing off.
1. Cotter pin 2. Steering gear assembly 3. Washer
4. Clip
SGIA1432E
SGIA0539E
SDIA1434E
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PS-18
< SERVICE INFORMATION >
POWER STEERING GEAR AND LINKAGE
7. Remove oil pipings (high pressure side and low pressure side)from steering gear assembly, then drain fluid from pipings.
8. Remove mounting bolt of steering hydraulic piping bracket from steering gear assembly.
9. Remove mounting bolt (lower side) of lower joint.
10. Remove mounting bolts of steering gear assembly with power tool, and then remove steering gear assembly from vehicle.
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.
 After removing/installing or replacing steering components, check wheel alignment. Refer to FSU-5, "
Wheel
Alignment Inspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
SGIA0541E
SGIA0545E
SGIA0542E
SGIA0546E
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POWER STEERING GEAR AND LINKAGEPS-19
< SERVICE INFORMATION >
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 When steering wheel is set in the straight ahead direction, confirm slit of lower joint fits with the projection on rear cover cap, further-
more marking position on steering gear assembly nearly fits with
the projection on rear cover cap.
 After installation, bleed air from piping. Refer to PS-7, "
Air Bleeding
Hydraulic System".
INSPECTION AFTER INSTALLATION
Check if steering wheel turns smoothly when it is tur ned several times fully to the end of the left and right.
Disassembly and AssemblyINFOID:0000000001327717
COMPONENTS
SGIA0539E
1. Outer socket 2. Boot clamp 3. Boot
4. Inner socket 5. Boot clamp 6. Gear housing assembly
7. Rack oil seal 8. Rack assembly 9. Rack Teflon ring
10. O-ring 11. End cover assembly 12. Cylinder tubes
SGIA1678E
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POWER STEERING GEAR AND LINKAGEPS-23
< SERVICE INFORMATION >
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2. Heat rack Teflon ring to approximately 40 °C (104 °F) with a
dryer. Assemble it to mounting groove of rack.
3. To fit rack Teflon ring on rack, use rack Teflon ring installation tool (SST) from tooth side. Comp ress rim of ring with the tool.
4. Apply recommended grease to rack oil seal. Insert rack oil seal, then insert rack assembly to gear housing assembly.
CAUTION:
 When inserting rack assembly, do not damage retainersliding part. If it is dama ged, replace gear housing assem-
bly.
 When inserting rack assembly, do not damage cylinder
inner wall. If it is damaged, it may cause oil leaks. Replace
gear housing assembly.
 Attach rack oil seal. Both in ner lip and outer lip should
face each other.
a. To avoid damaging inner rack oil seal, wrap an OHP sheet [approximately. 70 mm (2.76 in) × 100 mm (3.94 in) around rack
tooth. Place oil seal on sheet. Then, pull oil seal along with OHP
sheet until they pass the toothed se ction of rack, then remove it.
b. Insert rack oil seal (inner) to piston (rack Teflon ring) position and push retainer to adjust screw side with fingers lightly, and
then make rack move in gear housing assembly, install rack oil
seal (inner) to fit with gear housing assembly.
SGIA0153E
SGIA0154E
SGIA0205E
SGIA0155E
SGIA0548E
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PS-28
< SERVICE INFORMATION >
POWER STEERING OIL PUMP
Before starting work, confirm belt tension is proper.
1. Connect oil pressure gauge (SST) and oil pressure gaugeadapter (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 val ve 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 pressu re 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-32, "
Disas-
sembly and Assembly (VK45DE Models)".
5. After inspection, disconnect oil pressure gauge (S ST) 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-7, "
Air Bleeding Hydraulic System".
Removal and Installation (VQ35DE Models)INFOID:0000000001327719
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
.
3. Drain power steering fluid from reservoir tank.
4. Remove piping of high pressure and low pressure (drain fluid from their pipings). Refer to PS-37
.
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-37 for tightening torque. Install in the reverse order removal.
 After installation, adjust belt tension. Refer to EM-14
.
SGIA0570E
SST
Pressure gauge and shut-off valveKV48103500
(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)
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POWER STEERING OIL PUMPPS-29
< SERVICE INFORMATION >
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 After installation, bleed air. Refer to PS-7, "Air Bleeding Hydraulic System".
Removal and Installation (VK45DE Models)INFOID:0000000001327720
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Remove power steering oil pump belt from auto tensioner. Refer to EM-170
.
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-37
.
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-37 for tightening torque. Install in the reverse order removal.
After installation, bleed air. Refer to PS-7, "
Air Bleeding Hydraulic System".
NOTE:
Adjustment of belt tension is no necessary bec ause engine of this model equips auto tensioner.
Disassembly and Assembly (VQ35DE Models)INFOID:0000000001327721
COMPONENTS
INSPECTION BEFORE DISASSEMBLY
Disassemble power steering oil pump only if the following items are found.
 Oil leakage from oil pump
 Deformed or damaged pulley
 Poor performance
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
Refer to GI-8, "
Component" and the followings for the symbols in the figure.
: Apply power steering fluid
: Apply multi-purpose grease
SGIA1679E
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HYDRAULIC LINEPS-39
< SERVICE INFORMATION >
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VK45DE AWD MODEL
Removal and InstallationINFOID:0000000001327724
VQ35DE MODELS
 Refer to PS-37, "Component" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.
JSGIA0219GB
1. Reservoir tank 2. Suction hose 3. High pressure hose
4. Oil cooler 5. Pressure sensor 6. Steering gear assembly
7. Clamp 8. Eye bolt 9. Copper washer
10. Reservoir tank bracket 11. Eye bolt
Refer to GI-8, "
Component" and the followings for the symbols in the figure.
: Apply power steering fluid.
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