STEERING

SECTION
STEERING SYSTEM
ST B

E
CONTENTS
SYMPTOM DIAGNOSIS ............................... 2 LOWER SHAFT ................................................ 16 F
Exploded View .........................................................16
NOISE, VIBRATION AND HARSHNESS Removal and Installation .........................................16
(NVH) TROUBLESHOOTING ............................. 2 Inspection ................................................................17 ST
NVH Troubleshooting Chart ...................................... 2
STEERING GEAR AND LINKAGE ................... 18
PRECAUTION ............................................... 3 Exploded View .........................................................18
Removal and Installation .........................................19 H
PRECAUTIONS ................................................... 3 Disassembly and Assembly .....................................20
Precaution for Supplemental Restraint System Inspection ................................................................24
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- I
SIONER" ................................................................... 3 POWER STEERING OIL PUMP ....................... 26
Precaution Necessary for Steering Wheel Rota- Exploded View .........................................................26
tion after Battery Disconnect ..................................... 3 Removal and Installation .........................................27
J
Service Notice or Precautions for Steering System Disassembly and Assembly .....................................27
...... 4 Inspection ................................................................30

PREPARATION ............................................ 5 HYDRAULIC LINE ............................................ 32 K

Exploded View .........................................................32
PREPARATION ................................................... 5
Special Service Tools ................................................ 5 SERVICE DATA AND SPECIFICATIONS
L
Commercial Service Tool .......................................... 6 (SDS) ............................................................ 33
ON-VEHICLE MAINTENANCE ..................... 7 SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................. 33 M
POWER STEERING FLUID ................................ 7 General Specifications .............................................33
Inspection .................................................................. 7
Steering Wheel Axial End Play and Play .................33
STEERING WHEEL ............................................. 9 Steering Wheel Turning Torque ..............................33 N
Inspection .................................................................. 9 Steering Angle .........................................................33
Steering Column Length ..........................................33
ON-VEHICLE REPAIR ................................. 12 Steering Column Mounting Dimensions ..................33
O
Steering Column Operating Range .........................33
STEERING WHEEL ............................................12 Lower Shaft .............................................................34
Exploded View ........................................................ 12 Rack Sliding Force ..................................................34
Removal and Installation ......................................... 12 Rack Stroke .............................................................34 P
Socket Swing Force and Rotating Torque ...............34
STEERING COLUMN .........................................13 Socket Axial End Play .............................................34
Exploded View ........................................................ 13 Inner Socket Length ................................................34
Removal and Installation ......................................... 13 Relief Oil Pressure ...................................................34
Inspection ................................................................ 14

Revision: 2008 October ST-1 2009 370Z

 Symptom
Reference

×: Applicable
Steering

Revision: 2008 October

Noise
< SYMPTOM DIAGNOSIS >

Shake

Judder
Shimmy
Vibration
Possible cause and SUSPECTED PARTS
NVH Troubleshooting Chart

Fluid level ST-7, "Inspection"

×
Air in hydraulic system ST-7, "Inspection"

×
SYMPTOM DIAGNOSIS

Outer/inner socket ball joint swinging torque ST-24, "Inspection"

×
Outer/inner socket ball joint rotating torque ST-24, "Inspection"

×
Outer/inner socket ball joint end play ST-24, "Inspection"

×
Steering fluid leakage ST-24, "Inspection"

ST-2
Steering wheel play ST-9, "Inspection"

×
Steering gear rack sliding force ST-9, "Inspection"

×
Drive belt looseness EM-13, "Checking"

×
Improper steering wheel ST-9, "Inspection"

×
×
×
Improper installation or looseness of tilt lock lever —
Mounting looseness ST-18, "Exploded View"

×
×
×
×
Steering column deformation or damage ST-14, "Inspection"

×
×
Improper installation or looseness of steering column ST-13, "Exploded View"

×
×
Steering linkage looseness ST-18, "Exploded View"

×
×
PROPELLER SHAFT NVH in DLN section.

×
×
×
DIFFERENTIAL NVH in DLN section.

×
AXLE and SUSPENSION NVH in FAX, RAX, FSU, RSU section.

×
×
×
×
×
Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.

TIRE NVH in WT section.

×
×
×
×
×
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

ROAD WHEEL NVH in WT section.

×
×
×
×

DRIVE SHAFT NVH in FAX section.

×
×
×

BRAKE NVH in BR section.

×
×
×
×
INFOID:0000000004470896

2009 370Z
 PRECAUTIONS
< PRECAUTION >
PRECAUTION A
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT B
PRE-TENSIONER" INFOID:0000000004694629

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along C
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. D
Information necessary to service the system safely is included in the “SRS AIRBAG” and “SEAT BELT” of this
Service Manual.
WARNING: E
• 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 performed by
an authorized NISSAN/INFINITI dealer.
F
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser- ST
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS H
When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors while ignition switch is
ON or engine is running, never use air or electric power tools or strike near the sensor(s) with a hammer.
Heavy vibration may activate the sensor(s), deploy the airbag(s), possibly cause serious injury. I
When using air or electric power tools or hammers, always turn OFF ignition switch, disconnect the battery,
and wait 3 minutes or more before performing any service.
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect J
INFOID:0000000004495126

NOTE:
• Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi- K
tion, then disconnect both battery cables.
• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables. L
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
This vehicle is equipped with a push-button ignition switch and a steering lock unit.
If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned. M
If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure
below before starting the repair operation.
N
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged. O
2. Turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock will remain released with both battery cables discon- P
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of all control units using CONSULT-III.

Revision: 2008 October ST-3 2009 370Z

 PRECAUTIONS
< PRECAUTION >
Service Notice or Precautions for Steering System INFOID:0000000004470899

• In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehicle
condition, and then check wheel alignment.
• Observe the following precautions when disassembling.
- 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 becoming
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.
- Never reuse non-reusable parts.
- Before assembling, apply the specified grease to the directed parts.

Revision: 2008 October ST-4 2009 370Z

 PREPARATION
< PREPARATION >
PREPARATION A
PREPARATION
Special Service Tools INFOID:0000000004470902
B
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.) Description C
Tool name
ST3127S000 • Inspecting steering wheel turning torque
(J-25765-A) • Pinion rotating torque D
Preload gauge • Ball joint rotating torque

ZZA0806D

ST27180001 Removing steering wheel F

(J-25726-A)
Steering wheel puller
ST

ZZA0819D
H

KV48103400 Inspecting rotating torque

( — )
Preload adapter I

ZZA0824D

ST35300000 Installing oil pump oil seal

K
( — )
Drift
a: 45.1 mm (1.776 in) dia.
b: 59.0 mm (2.323 in) dia. L

ZZA0881D
M
KV48103500 Measuring oil pump relief pressure
(J-26357)
Oil pressure gauge
N

O
S-NT547

KV48102500 Measuring oil pump relief pressure

(J-33914) P
Oil pressure gauge adapter

S-NT542

Revision: 2008 October ST-5 2009 370Z

 PREPARATION
< PREPARATION >
Commercial Service Tool INFOID:0000000004470903

Tool name Description

Power tool Loosening bolts and nuts

PBIC0190E

Revision: 2008 October ST-6 2009 370Z

 POWER STEERING FLUID
< ON-VEHICLE MAINTENANCE >
ON-VEHICLE MAINTENANCE A
POWER STEERING FLUID
Inspection INFOID:0000000004494715
B

FLUID LEVEL
1. Check fluid level with engine stopped. C
2. Ensure that fluid level is between MIN and MAX.
3. Fluid levels at HOT and COLD are different. Do not confuse
them. D

HOT : Fluid temperature 50 – 80°C (122 – 176°F)

COLD : Fluid temperature 0 – 30°C (32 – 86°F) E

Recommended fluid : Refer to MA-14, "FOR

NORTH AMERICA : Fluids F
and Lubricants" (For North SGIA0232J

America), MA-15, "EX-

CEPT FOR NORTH AMERI- ST
CA : Fluids and
Lubricants" (Except for
North America). H
Fluid capacity : Refer to ST-33, "General
Specifications".
CAUTION: I
• The fluid level should not exceed the MAX line. Excessive fluid causes fluid leakage from the
cap.
• Never reuse drained power steering fluid. J
FLUID LEAKAGE
Check hydraulic connections for fluid leakage, cracks, damage,
looseness, or wear. K
1. Run the engine until the fluid temperature reaches 50 to 80°C
(122 to 176°F) in reservoir tank, and keep engine speed idle.
2. Turn steering wheel several times from full left stop to full right L
stop.
3. Hold steering wheel at each lock position for five seconds and
carefully check for fluid leakage. M
CAUTION:
Never hold the steering wheel in a locked position for more
than 10 seconds. (There is the possibility that power steer- SGIA0506E
N
ing oil pump assembly may be damaged.)
4. If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not overtighten con-
nector as this can damage O-ring, washer and connector.
O
5. If fluid leakage from oil pump is noticed, check oil pump.
6. Check steering gear boots for accumulation of fluid leaked from steering gear.
AIR BLEEDING HYDRAULIC SYSTEM P
If air bleeding is not complete, the following symptoms can be observed.
• Bubbles are created in reservoir tank.
• Clicking noise can be heard from oil pump.
• Excessive buzzing in the oil pump.
NOTE:
Fluid noise may occur in the steering gear or oil pump. This does not affect performance or durability of the
system.

Revision: 2008 October ST-7 2009 370Z

 POWER STEERING FLUID
< ON-VEHICLE MAINTENANCE >
1. Turn steering wheel several times from full left stop to full right stop with engine off.
CAUTION:
Fill reservoir tank with a sufficient amount of fluid so that fluid level is not below the MIN line while
turning steering wheel.
2. Start the engine and hold steering wheel at each lock position for 3 second at idle to check for fluid leak-
age.
3. Repeat step 2 above several times at approximately 3 second intervals.
CAUTION:
Never hold the steering wheel in a locked position for more than 10 seconds. (There is the possi-
bility that oil pump may be damaged.)
4. Check fluid for bubbles and white contamination.
5. Stop the engine if bubbles and white contamination do not drain out. Perform step 2 and 3 above after
waiting until bubbles and white contamination drain out.
6. Stop the engine, and then check fluid level.

Revision: 2008 October ST-8 2009 370Z

 STEERING WHEEL
< ON-VEHICLE MAINTENANCE >
STEERING WHEEL
A
Inspection INFOID:0000000004470906

STEERING WHEEL AXIAL END PLAY B

1. Check installation conditions of steering gear assembly, front suspension assembly, axle and steering col-
umn assembly.
2. Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial C
direction.

Standard D
Steering wheel axial end : Refer to ST-33, "Steering
play Wheel Axial End Play and
Play". E

3. Check the following items if steering wheel axial end play is out of the standard.
• Check the steering column assembly mounting condition. Refer to ST-13, "Exploded View".
• Check steering gear assembly mounting condition for looseness. Refer to ST-18, "Exploded View". F

STEERING WHEEL PLAY

1. Turn steering wheel so that front wheels come to the straight-ahead position. ST
2. Start the engine and lightly turn steering wheel to the left and right until front wheels start to move.
3. Measure steering wheel movement on the outer circumference.
H
Standard
Steering wheel play : Refer to ST-33, "Steering
Wheel Axial End Play and I
Play".
4. Check the following items if steering wheel play is out of the standard.
• Check backlash for each joint of steering column assembly. J
• Check installation condition of steering gear assembly.
NEUTRAL POSITION STEERING WHEEL
K
1. Check that steering gear assembly, steering column assembly and steering wheel are installed in the cor-
rect position.
2. Perform neutral position inspection after wheel alignment. Refer to FSU-7, "Inspection". L
3. Set the vehicle to the straight-ahead position and check that the steering wheel is in the neutral position.
4. Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if
steering wheel is not in the neutral position. M
STEERING WHEEL TURNING TORQUE
1. Park the vehicle on a level and dry surface, apply parking brake.
N
2. Tires need to be inflated to the specified pressure. Refer to WT-99, "Tire Air Pressure".
3. Remove driver air bag module. Refer to SR-5, "Exploded View".
4. Start the engine. O
5. Check that the power steering fluid is at the operating temperature.

Fluid temperature : 50 – 80°C (122 – 176°F) P

Revision: 2008 October ST-9 2009 370Z

 STEERING WHEEL
< ON-VEHICLE MAINTENANCE >
6. Make sure that the reading is within the following specified
range using preload gauge (A) [SST: ST3127S000 (J-25765-A)].

Standard
Steering wheel turning : Refer to ST-33, "Steering
torque Wheel Turning Torque".
7. If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to ST-30,
"Inspection". JSGIA0431ZZ

RACK SLIDING FORCE

1. Disconnect lower joint and steering knuckle from steering gear assembly. Refer to ST-18, "Exploded
View".
2. Start and run the engine at idle to make sure steering fluid reaches normal operating temperature.

Fluid temperature : 50 – 80°C (122 – 176°F)

3. While pulling outer socket slowly in ±11.5 mm (±0.453 in) range
from neutral position, check that rack sliding force is within spec-
ification.

Standard
Rack sliding force : Refer to ST-34, "Rack
Sliding Force".
4. If rack sliding force is not within specification, overhaul steering
gear assembly.
SST090B

FRONT WHEEL TURNING ANGLE

1. Check front wheel turning angle after toe-in inspection. Refer to FSU-7, "Inspection".
2. Place front wheels on turning radius gauges and rear wheels on
stands, so that vehicle can be level.
3. Check the maximum inner and outer wheel turning angles for LH
and RH road wheels.

FAA0016D

4. With the engine at idle, turn steering wheel from full left stop to
full right stop and measure the turning angles.

Standard
Inner wheel (Angle: A) : Refer to ST-33, "Steering
Angle".
Outer wheel (Angle: B) : Refer to ST-33, "Steering
Angle".

SGIA0055E

Revision: 2008 October ST-10 2009 370Z

 STEERING WHEEL
< ON-VEHICLE MAINTENANCE >
5. Check the following items if turning angle is out of the specified
value. A
a. Check the neutral position of the rack stroke (L).

Standard B
L : Refer to ST-34, "Rack
Stroke".
C
b. Disassemble steering gear assembly to check the cause that
rack stroke is outside of the specified value.
• Steering angles are not adjustable. Check steering gear SGIA0629J

assembly, steering column assembly and front suspension D

components for wear or damage if any of the turning angles are different from the specified value.
Replace damaged or malfunctioning parts if necessary.
E

ST

Revision: 2008 October ST-11 2009 370Z

 STEERING WHEEL
< ON-VEHICLE REPAIR >
ON-VEHICLE REPAIR
STEERING WHEEL
Exploded View INFOID:0000000004470907

JSGIA0539GB

1. Steering wheel

Refer to GI-4, "Components" for symbols in the figure.

Removal and Installation INFOID:0000000004470908

REMOVAL
NOTE:
When reconnecting spiral cable, fix cable with a tape so that fixing case and rotating part keep aligned. This
omits neutral position alignment procedure during spiral cable installation.
1. Set the vehicle to the straight-ahead position.
2. Remove driver air bag module. Refer to SR-5, "Exploded View".
3. Remove steering wheel lock nut after steering is locked.
4. Remove steering wheel with the steering wheel puller (A) [SST:
ST27180001 (J-25726-A)].

JSGIA0540ZZ

INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Never twist spiral cable freely on excessively after it becomes tight (doing so may cause the cable to
tear off).
NOTE:
Check the spiral cable neutral position after replacing or rotating spiral cable. Refer to SR-8, "Exploded View".

Revision: 2008 October ST-12 2009 370Z

 STEERING COLUMN
< ON-VEHICLE REPAIR >
STEERING COLUMN
A
Exploded View INFOID:0000000004470909

ST

I
JSGIA0541GB

1. Bracket 2. Slide plate 3. Slide plate J

4. Spring 5. Upper joint 6. Bracket
7. Steering column assembly
K
Refer to GI-4, "Components" for symbols in the figure.

Removal and Installation INFOID:0000000004494772

L
REMOVAL
1. Set the vehicle to the straight-ahead position.
M
2. Place the tilt to the highest level.
3. Remove driver air bag module. Refer to SR-5, "Exploded View".
4. Remove steering wheel. Refer to ST-12, "Exploded View".
N
5. Remove the instrument lower panel LH. Refer to IP-11, "Exploded View".
6. Remove combination meter. Refer to IP-11, "Exploded View".
7. Remove the steering column cover. Refer to IP-11, "Exploded View". O
8. Remove spiral cable. Refer to SR-8, "Exploded View".
9. Remove combination switch. Refer to BCS-85, "Exploded View".
10. Remove knee protector. P
11. Disconnect each harness connectors installed to steering column assembly.
12. Remove the upper joint mounting bolt and nut (lower shaft side), and separate the joint from lower shaft.
13. Remove steering column assembly.
CAUTION:
• Never give axial impact to steering column assembly during removal.
• Never move steering gear assembly when removing steering column assembly.

Revision: 2008 October ST-13 2009 370Z

 STEERING COLUMN
< ON-VEHICLE REPAIR >
INSTALLATION
Note the following, and install in the reverse order of removal.
• Make sure there is no space between slide plate (1) and steering column assembly (2).
CAUTION:
Never reuse the slide plate.

JSGIA0346ZZ

• Tighten the mounting nuts in the order shown in the figure steering
member, when installing the steering column assembly.
• Be careful of the following points when installing the steering col-
umn assembly.
CAUTION:
• Never give axial impact to steering column assembly during
installation.
• Never move steering gear assembly.
• Never reuse the joint mounting nut (lower shaft side).
• Adjust neutral position of steering angle sensor. Refer to BRC-8,
"ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
JSGIA0542ZZ
POSITION : Special Repair Requirement" (VDC models).
Inspection INFOID:0000000004494773

INSPECTION AFTER REMOVAL

• Check each part of steering column assembly for damage or other malfunctions. Replace if necessary.
• Measure steering column assembly rotating torque using a preload gauge [SST: ST3127S000 (J-25765-A).
Replace steering column assembly if outside the standard.

Standard
Rotating torque : Refer to ST-33, "Steering
Column Operating
Range".
• Measure the length (L) as shown, if vehicle has been involved in a
minor collision. Replace steering column assembly if out side the
standard.

Standard
L : Refer to ST-33, "Steering
Column Length".

JSGIA0544ZZ

Revision: 2008 October ST-14 2009 370Z

 STEERING COLUMN
< ON-VEHICLE REPAIR >
• Install the bracket (1) and steering column housing (2) so that the
clearance (A) is within the specified range as described below. A
Replace steering column assembly if out side the standard.

Standard B
A : Refer to ST-33, "Steering
Column Mounting Dimen-
sions". C

JSGIA0543ZZ

D
INSPECTION AFTER INSTALLATION
• Check each part of steering column assembly for damage or other malfunctions. Replace if necessary.
• Check the steering wheel play, neutral position steering wheel, steering wheel turning force, and front wheel
turning angle. Refer to ST-9, "Inspection". E
• Check tilt mechanism operating range (L), as shown in the figure.

Standard F
L : Refer to ST-33, "Steering
Column Operating
Range". ST

H
JSGIA0545ZZ

Revision: 2008 October ST-15 2009 370Z

 LOWER SHAFT
< ON-VEHICLE REPAIR >
LOWER SHAFT
Exploded View INFOID:0000000004470912

JSGIA0557GB

1. Steering column assembly 2. Collar 3. Hole cover seal

4. Clamp 5. Hole cover 6. Lower shaft
7. Lower joint

Refer to GI-4, "Components" for symbols in the figure.

Removal and Installation INFOID:0000000004470913

REMOVAL
1. Set the vehicle to the straight-ahead position.
2. Fix the steering wheel.
3. Remove lower joint fixing bolt (steering gear side).
4. Separate the lower shaft from the steering gear assembly by
sliding the slide shaft (A: sliding range).
CAUTION:
Spiral cable may be cut if steering wheel turns while sepa-
rating steering column assembly and steering gear assem-
bly. Always fix the steering wheel using string to avoid
turning.
5. Remove the accelerator pedal assembly. Refer to ACC-3,
"Exploded View".
6. Remove the hole cover mounting nuts.
7. Remove the upper joint fixing bolt and nut (lower shaft side). JSGIA0547ZZ

8. Remove the lower shaft and hole cover.

9. Remove collar, hole cover seal, clamp and hole cover.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Spiral cable may be cut if steering wheel rotates while separating steering column assembly and steer-
ing gear assembly. Always fix the steering wheel using string to avoid turning.

Revision: 2008 October ST-16 2009 370Z

 LOWER SHAFT
< ON-VEHICLE REPAIR >
• Tighten the clamp to the specified torque and check the clamp
length (A). A

A : 14.0 – 18.0 mm (0.551 – 0.709 in)

B

JSGIA0094ZZ

D
• Install clamp as shown in the figure.

: Vehicle front E
• When installing lower joint to steering gear assembly, follow the
procedure listed below.
- Set rack of steering gear in the neutral position. F
NOTE:
To get the neutral position of rack, turn gear-sub assembly and
measure the distance of inner socket, and then measure the inter-
ST
mediate position of the distance.
JSGIA0556ZZ

- Align rear cover cap projection (A) with the marking position of H
gear housing assembly (B).

: Bolt I
- Install slit part of lower joint (C) aligning with the rear cover cap
projection (A). Check that the slit part of lower joint (C) is aligned
with rear cover cap projection (A) and the marking position of gear J
housing assembly (B).
- Make sure there is no clearance between the lower joint, gear
housing assembly and mounting bolt.
K
• Adjust neutral position of steering angle sensor. Refer to BRC-8, JSGIA0111ZZ

"ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL

POSITION : Special Repair Requirement".
• Check the following after installation: L
- Check if steering wheel turns smoothly when it is turned several times fully to the end of the left and right.
- Check the steering wheel play, neutral position steering wheel, steering wheel turning force, and front wheel
turning angle. Refer to ST-9, "Inspection". M
Inspection INFOID:0000000004470914

• Check the length (L) (extended position) of the lower shaft. N

Standard
L : Refer to ST-34, "Lower O
Shaft".
• Check each part of lower shaft for damage or other malfunctions.
Replace if there are. P

JSGIA0548ZZ

Revision: 2008 October ST-17 2009 370Z

 STEERING GEAR AND LINKAGE
< ON-VEHICLE REPAIR >
STEERING GEAR AND LINKAGE
Exploded View INFOID:0000000004470915

REMOVAL

JSGIA0558GB

1. Steering gear assembly 2. Cotter pin 3. Rack stay

: Vehicle front
Refer to GI-4, "Components" for symbols in the figure.

DISASSEMBLY

JSGIA0549GB

1. Rear cover cap 2. Low pressure piping 3. Gear-sub assembly

4. Power steering solenoid valve 5. O-ring 6. Adjusting screw
7. Spring 8. Retainer 9. Gear housing assembly

Revision: 2008 October ST-18 2009 370Z

 STEERING GEAR AND LINKAGE
< ON-VEHICLE REPAIR >
10. Boot clamp (stainless wire) 11. Spacer 12. Inner socket
13. Boot 14. Boot clamp 15. Outer socket lock nut A
16. Outer socket 17. Cylinder tubes

: Apply power steering fluid. B

: Apply Genuine High Performance Thread Sealant or equivalent. Refer to GI-17, "Recommended Chemical Products and
Sealants".

: Apply Genuine Medium Strength Thread Locking Sealant or equivalent. Refer to GI-17, "Recommended Chemical Prod-
C
ucts and Sealants".
: Apply multi-purpose grease.
Refer to GI-4, "Components" for symbols not described on the above. D

Removal and Installation INFOID:0000000004470916

E
REMOVAL
1. Set the vehicle to the straight-ahead position.
2. Remove tires with a power tool. F
3. Remove front suspension member stay. Refer to FSU-18, "Exploded View".
4. Remove cotter pin (1), and then loosen the nut.
ST
5. Remove steering outer socket (2) from steering knuckle (3) so
as not to damage ball joint boot (4) using suitable ball joint
remover.
CAUTION: H
Temporarily tighten the nut to prevent damage to threads
and to prevent the ball joint remover from sudden drop.
6. Remove high pressure piping and low pressure piping of I
hydraulic piping, and then drain power steering fluid.

PGIA0063E
J

7. Remove power steering solenoid valve harness connector.

8. Remove rack stay. Refer to ST-18, "Exploded View". K
9. Remove lower joint fixing bolt (steering gear side).

10. Separate the lower shaft from the steering gear assembly by L
sliding the slide shaft (A: sliding range).
CAUTION:
Spiral cable may be cut if steering wheel turns while sepa- M
rating steering column assembly and steering gear assem-
bly. Always fix the steering wheel using string to avoid
turning.
11. Remove the mounting bolts and nuts of steering gear assembly. N
12. Remove steering gear assembly.

JSGIA0547ZZ O
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION: P
Spiral cable may be cut if steering wheel turns while separating steering column assembly and steer-
ing gear assembly. Always fix the steering wheel using string to avoid turning.

Revision: 2008 October ST-19 2009 370Z

 STEERING GEAR AND LINKAGE
< ON-VEHICLE REPAIR >
• Tighten the mounting bolts in the order shown in the figure when
installing the steering gear assembly.

Temporary tightening: 1 ⇒ 2 ⇒ 3 ⇒ 4
Final tightening: 1 ⇒ 2 ⇒ 3 ⇒ 4

JSGIA0112ZZ

• When installing suction hoses (1), refer to the figure.

CAUTION:
• Never apply fluid to the hose (1) and tube (2).
• Insert hose securely until it contacts spool (A) of tube.
• Install clamp (3) to the hose at 3 – 8 mm (0.12 – 0.31 in) (L)
from the edge of the hose.

JSGIA0118ZZ

• When installing lower joint to steering gear assembly, follow the procedure listed below.
- Set rack of steering gear in the neutral position.
NOTE:
To get the neutral position of rack, turn gear-sub assembly and measure the distance of inner socket, and
then measure the intermediate position of the distance.
- Align rear cover cap projection (A) with the marking position of
gear housing assembly (B).

: Bolt

- Install slit part of lower joint (C) aligning with the rear cover cap
projection (A). Make sure that the slit part of lower joint (C) is
aligned with rear cover cap projection (A) and the marking position
of gear housing assembly (B).
- Make sure there is no clearance between the lower joint, gear
housing assembly and mounting bolt.
• After installation, bleed air from the steering hydraulic system. JSGIA0111ZZ

Refer to ST-7, "Inspection".

• Perform final tightening of nuts and bolts on each part under unladen conditions with tires on level ground
when removing steering gear assembly. Check wheel alignment. Refer to FSU-7, "Inspection".
• Adjust neutral position of steering angle sensor after checking wheel alignment. Refer to BRC-8, "ADJUST-
MENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement".
Disassembly and Assembly INFOID:0000000004470917

DISASSEMBLY
1. Remove low pressure piping.
CAUTION:
• Disassemble and assemble steering gear assembly by fixing the mounting area with a vise using
copper plates.
• Clean steering gear assembly with kerosene before disassembling. Be careful to avoid splash-
ing or applying any kerosene over connector of discharge port or return port.
2. Remove cylinder tubes from gear housing assembly.
3. Remove rear cover cap from gear-sub assembly.

Revision: 2008 October ST-20 2009 370Z

 STEERING GEAR AND LINKAGE
< ON-VEHICLE REPAIR >
4. Measure adjusting screw height “H”, and loosen adjusting
screw. A
CAUTION:
• Never loosen adjusting screw 2 turns or more.
• Replace steering gear assembly if adjusting screw is
B
loosened 2 turns or more and it is removed.
5. Remove gear-sub assembly from gear housing assembly.
6. Remove O-ring from gear housing assembly.
C
7. Loosen outer socket lock nut, and remove outer socket.
8. Remove boot clamps, and then remove boot from inner socket. SGIA0624E
CAUTION: D
Never damage inner socket and gear housing assembly when removing boot. Inner socket and
gear housing assembly must be replaced if inner socket and gear housing assembly are damaged
because it may cause foreign material interfusion.
E
9. Remove inner socket from gear housing assembly.
10. Remove spacer from gear housing assembly.
ASSEMBLY F
1. Apply recommended fluid to O-ring, and then install O-ring to gear housing assembly.
CAUTION:
Never reuse O-ring. ST
2. Install gear-sub assembly to gear housing assembly.
CAUTION:
In order to protect oil seal from any damage, insert gear-sub assembly straightly. H
3. Install inner socket to gear housing assembly with the following procedure.
a. Install spacer to gear housing assembly.
b. Apply thread sealant into the thread of inner socket. I
Use Genuine Medium Strength Thread Locking Sealant or equivalent. Refer to GI-17, "Recom-
mended Chemical Products and Sealants".
4. Decide on the neutral position of the rack stroke (L). J

Standard
L : Refer to ST-34, "Rack K
Stroke".
5. Install rear cover cap to gear sub-assembly.
CAUTION: L
Check that the projection of rear cover cap is aligned with
the marking position of gear housing assembly.
SGIA0877E M
6. Apply recommended thread sealant to the thread (2 turns
thread), and then screw in the adjusting screw until it reaches
height “H” from gear housing assembly measured before disas- N
sembling.
Use Genuine High Performance Thread Sealant or equiva-
lent. Refer to GI-17, "Recommended Chemical Products and O
Sealants".
7. Move rack assembly 10 strokes throughout the full stroke so that
the parts can fit with each other. P

SGIA0624E

8. Adjust pinion rotating torque with the following procedure.

Revision: 2008 October ST-21 2009 370Z

 STEERING GEAR AND LINKAGE
< ON-VEHICLE REPAIR >
a. Measure pinion rotating torque within ±180° of neutral position
of the rack assembly using tools. Stop the gear at the point
where highest torque is read.

A: Preload gauge [SST: ST3127S000 (J-25765-A)]

B: Preload adapter [SST: KV48103400 ( — )]
b. Loosen adjusting screw and retighten to 5.4 N·m (0.55 kg-m, 48
in-lb), and then loosen by 20 to 40°.

SGIA1383E

c. Measure pinion rotating torque using tools to check that the

measured value is within the specified value. Readjust if the
value is outside the standard. Replace steering gear assembly, if
the value is out of the specified value after readjusting, or adjust-
ing screw rotating torque is 5 N·m (0.51 kg-m, 44 in-lb) or less.

Pinion rotating torque

Around neutral position : 1.95 – 2.58 N·m (0.20 –
(within±100°) average (A) 0.26 kg-m, 18 – 22 in-lb)
Maximum variation (B) : 0.98 N·m (0.10 kg-m, 9.0 SGIA0936E
in-lb)
d. Turn pinion fully to left.
e. Install dial gauge at 5 mm (0.20 in) (L) from the edge of gear
housing assembly (1), and tooth point.
f. Measure vertical movement of rack assembly when pinion is
turned clockwise with torque of 19.6 N·m (2.0 kg-m, 14 ft-lb).
Readjust adjusting screw angle if the measured value is out of
the specified value.

Vertical movement : 0.265 mm (0.0104 in)

• If reading is outside of the specification, readjust screw angle
with adjusting screw.
JSGIA0104ZZ
CAUTION:
• If reading is still outside of specification, or if the rotating torque of adjusting screw is less
than 5 N·m (0.51 kg-m, 44 in-lb), replace steering gear assembly.
• Never turn adjusting screw more than twice.
• Replace steering gear assembly when adjusting screw is removed or turned more than twice.
9. Install large end of boot to gear housing assembly.
10. Install small end of boot to inner socket boot mounting groove.
11. Install boot clamp to boot small end.

SGIA1325E

12. Install boot clamp to the large side of boot with the following procedure.
CAUTION:
Never reuse boot clamp.

Revision: 2008 October ST-22 2009 370Z

 STEERING GEAR AND LINKAGE
< ON-VEHICLE REPAIR >
a. Tighten large side of boot with boot clamp (stainless wire).
A
Wire length (L) : 370 mm (14.57 in)
b. Wrap clamp around boot groove for two turns. Insert a flat-
bladed screwdriver in loops on both ends of wire. Twist 4 to 4.5 B
turns while pulling them with force of approximately 98 N (10 kg,
22 lb).
C

SGIA0163E

D
c. Twist boot clamp as shown. Pay attention to relationship
between winding and twisting directions.
E

ST
SGIA0164E

d. Twisted area (A) of clamp is on the opposite side of adjusting

H
screw (1) as shown in the figure. (To prevent contact with other
parts)

JSGIA0101ZZ
K
e. Bend cut end of the wire within the area (A) shown in the figure
after twisting the wire 4 to 4.5 turns so that the cut end does not
contact with boot. L
CAUTION:
Keep the clearance from cylinder tube 5.0 mm (0.20 in) or
more. M

A : 45°
13. Install cylinder tubes to gear housing assembly. N
14. Install low pressure piping. JSGIA0102ZZ

15. Adjust inner socket to standard length (L), and then tighten lock O
nut to the specified torque. Check length again after tightening
lock nut.
P
Standard
L : Refer to ST-34, "Inner
Socket Length".
CAUTION:
Adjust toe-in after this procedure. The length achieved after
toe-in adjustment is not necessary the above value. SGIA0167E

Revision: 2008 October ST-23 2009 370Z

 STEERING GEAR AND LINKAGE
< ON-VEHICLE REPAIR >
Inspection INFOID:0000000004470918

INSPECTION AFTER INSTALLATION

• Check if steering wheel turns smoothly when it is turned several times fully to the end of the left and right.
• Check the steering wheel play, neutral position steering wheel, steering wheel turning force, and front wheel
turning angle. Refer to ST-9, "Inspection".
• Check the fluid level, fluid leakage, and air bleeding hydraulic system. Refer to ST-7, "Inspection".
INSPECTION AFTER DISASSEMBLY
Boot
Check boot for cracks, and replace it if a malfunction is detected.
Rack Assembly
Check rack for damage or wear, and replace it if a malfunction is detected.
Gear-Sub Assembly
• Check gear-sub assembly for damage or wear, and replace it if a malfunction is detected.
• Rotate gear-sub assembly and check for torque variation or rattle, and replace it if a malfunction is detected.
Gear Housing Assembly
Check gear housing assembly for damage and scratches (inner wall). Replace if there are.
Outer Socket and Inner Socket
Check the following items and replace the component if it does not meet the standard.
BALL JOINT SWINGING TORQUE
Hook a spring balance at the point shown in the figure and pull the
spring balance. Make sure that the spring balance reads the speci-
fied value when ball stud and inner socket start to move. Replace
outer socket and inner socket if they are outside the standard.

Standard
(Measuring point of outer socket: Stud cotter pin
mounting hole)
Outer socket : Refer to ST-34, "Socket
Swing Force and Rotating
SGIA0896E
Torque".

Standard
(Measuring point of inner socket: “*” mark shown in
the figure)
Inner socket : Refer to ST-34, "Socket
Swing Force and Rotating
Torque".
BALL JOINT ROTATING TORQUE
Make sure that the reading is within the following specified range
using preload gauge (A) [SST: ST3127S000 (J-25765-A)]. Replace
outer socket if the reading is outside the specified value.

Standard
Rotating torque : Refer to ST-34, "Socket
Swing Force and Rotating
Torque".

SGIA1382E

BALL JOINT AXIAL END PLAY

Revision: 2008 October ST-24 2009 370Z

 STEERING GEAR AND LINKAGE
< ON-VEHICLE REPAIR >
Apply an axial load of 490 N (50 kg, 110 lb) to ball stud. Using a dial
gauge, measure amount of stud movement, and then make sure that A
the value is within the following specified range. Replace outer
socket (1) and inner socket (2) if the measured value is outside the
standard.
B
Standard
Outer socket : Refer to ST-34, "Socket Axial
C
End Play".
Inner socket : Refer to ST-34, "Socket Axial
JSGIA0109ZZ
End Play".
D

ST

Revision: 2008 October ST-25 2009 370Z

 POWER STEERING OIL PUMP
< ON-VEHICLE REPAIR >
POWER STEERING OIL PUMP
Exploded View INFOID:0000000004470919

REMOVAL

JSGIA0046GB

1. Power steering oil pump 2. Bracket

: Vehicle front
Refer to GI-4, "Components" for symbols in the figure.

DISASSEMBLY

JSGIA0364GB

1. Pulley 2. Oil seal 3. Bracket

4. Body assembly 5. Suction pipe 6. O-ring
7. Flow control valve B assembly 8. Flow control valve spring 9. Flow control valve A

Revision: 2008 October ST-26 2009 370Z

 POWER STEERING OIL PUMP
< ON-VEHICLE REPAIR >
10. Dowel pin 11. Front side plate 12. Vane
13. Rotor 14. Rotor snap ring 15. Cam ring A
16. Rear side plate 17. O-ring 18. Teflon ring
19. O-ring 20. Rear cover 21. Cartridge
A. Oil seal lip B

: Apply power steering fluid.

: Apply multi-purpose grease. C
Refer to GI-4, "Components" for symbols not described on the above.

Removal and Installation INFOID:0000000004470920 D

REMOVAL
1. Drain power steering fluid from reservoir tank. E
2. Remove the right of the air cleaner and the right of the air duct. Refer to EM-27, "Exploded View".
3. Loosen drive belt. Refer to EM-13, "Exploded View".
4. Remove drive belt from oil pump pulley. F
5. Remove pressure sensor connector.
6. Remove copper washers and eye bolt (drain fluid from their pipings).
ST
7. Remove suction hose (drain fluid from their pipings).
8. Remove cooling fan assembly. Refer to CO-16, "Exploded View".
9. Remove oil pump mounting bolts, and then remove oil pump. H
INSTALLATION
Note the following, and install in the reverse order of removal.
• When installing suction hoses (1), refer to the figure. I
CAUTION:
• Never apply fluid to the hose (1) and tube (2).
• Insert hose securely until it contacts spool (A) of tube. J
• Leave clearance (L) when installing clamp (3).

Standard
K
L : 3 – 8 mm (0.12 – 0.31 in)

JSGIA0118ZZ L

• When installing eye bolt (1) and copper washer (2) to oil pump (3),
refer to the figure. M
CAUTION:
• Never reuse copper washer.
• Apply power steering fluid to around copper washers, then
install eye bolt. N
• Install eye bolt with eye joint (assembled to high pressure
hose) (B) protrusion (A) facing with pump side cutout, and
then tighten it to the specified torque after tightening by O
hand. Refer to ST-32, "Exploded View".
• Securely insert harness connector to pressure sensor.
SGIA1379E
• Adjust belt tension. Refer to EM-13, "Tension Adjustment".
• Check fluid level, fluid leakage and air bleeding hydraulic system after the installation. Refer to ST-7, P
"Inspection".
Disassembly and Assembly INFOID:0000000004470921

DISASSEMBLY
1. Remove rear cover mounting bolts, and then remove rear cover from body assembly.
CAUTION:

Revision: 2008 October ST-27 2009 370Z

 POWER STEERING OIL PUMP
< ON-VEHICLE REPAIR >
• Fix oil pump with a vise if necessary.
• Use copper plates when fixing with a vise.
2. Remove O-ring from body assembly.
3. Remove rear side plate from cartridge, and then remove Teflon ring and O-ring from rear side plate.
4. Remove rotor snap ring using a snap ring pliers, and remove
pulley from body assembly.
CAUTION:
Never damage pulley, when removing rotor snap ring.

SGIA0059E

5. Remove cartridge and front side plate.

6. Remove flow control valve A (1), flow control valve spring (2)
and flow control valve B assembly (3) from body assembly (4).
CAUTION:
Never drop and damage flow control valve A and flow con-
trol valve B assembly when removing.
7. Remove oil seal from body assembly.
8. Remove mounting bolt of suction pipe, and then remove suction
pipe from body assembly.
9. Remove O-ring from body assembly.
10. Remove bracket mounting bolts, and then remove bracket from JSGIA0365ZZ
body assembly.
ASSEMBLY
1. Apply recommended grease to oil seal lips. Apply recommended
fluid to around oil seal, and then install oil seal to body assembly
using a drift [SST: ST35300000 ( — )]
CAUTION:
• Fix oil pump with a vise if necessary.
• Use copper plates when fixing with a vise.
2. Install bracket to body assembly.
3. If dowel pin has been removed, insert it into body assembly by
hand. If it cannot be inserted by hand, lightly tap with a hammer.

SGIA0527E

4. Install flow control valve A (1), flow control valve spring (2) and
flow control valve B assembly (3) to body assembly (4).

JSGIA0365ZZ

Revision: 2008 October ST-28 2009 370Z

 POWER STEERING OIL PUMP
< ON-VEHICLE REPAIR >
5. Install front side plate (3) with dowel pin (2) on flow control valve
A (1) side as shown in the figure aligning with front side plate A
cutout (A) to body assembly (4).

SGIA1189E

D
6. Install cam ring as shown in the figure.
7. Install pulley to body assembly.
CAUTION: E
Never damage oil seal when installing pulley.

ST
SGIA0612E

8. Be careful with the orientation of rotor, and then install it to pulley

H
shaft.

A : Rear cover side

B : Body assembly side I

JSGIA0460ZZ
K
9. Install vane to rotor so that arc of vane faces cam ring side.

N
JSGIA0461GB

10. Install rotor snap ring to slit of pulley shaft using a hammer and a O
10 mm (0.39 in) box.
CAUTION:
• Never damage rotor and pulley shaft.
• Oil pump assembly must be replaced if rotor is damaged. P

SGIA0063E

Revision: 2008 October ST-29 2009 370Z

 POWER STEERING OIL PUMP
< ON-VEHICLE REPAIR >
11. Install rear side plate with dowel pin A on flow control valve A
side as shown in the figure aligning with rear side plate cutout B
to cartridge.
12. Apply recommended fluid to O-ring, and then install O-ring to
body assembly.
13. Apply recommended fluid to O-ring, and then install O-ring to
rear side plate.
14. Apply recommended fluid to Teflon ring, and then install Teflon
ring to rear side plate.
15. Install rear cover to body assembly. PGIA0035E
16. Apply recommended fluid to O-ring, and then install O-ring to
body assembly.
17. Install suction pipe to body assembly.
Inspection INFOID:0000000004470922

RELIEF OIL PRESSURE

CAUTION:
Check that belt tension is normal before starting the following procedure.
1. Connect the oil pressure gauge [SST: KV48103500 (J-26357)]
and the oil pressure gauge adapter [SST: KV48102500 (J-
33914)] between oil pump discharge connector and high-pres-
sure hose. Bleed air from the hydraulic circuit while opening
valve fully. Refer to ST-7, "Inspection".
2. Start engine. Run engine until oil temperature reaches 50 to
80°C (122 to 176°F).
CAUTION:
• Leave the valve of the oil pressure gauge fully open while
starting and running engine. If engine is started with the
valve closed, the hydraulic pressure in oil pump goes up
to the relief pressure along with unusual increase of oil
temperature.
• Always keep hose clear of belts and other parts when
engine is started.
3. Fully close the oil pressure gauge valve with engine at idle and
measure the relief oil pressure.

Standard
Relief oil pressure : Refer to ST-34, "Relief Oil
Pressure".
CAUTION: SGIA0915E

Never keep valve fully closed for 10 seconds or longer.

4. Open the valve slowly after measuring. Repair oil pump if the relief oil pressure is outside the standard.
Refer to ST-27, "Disassembly and Assembly".
5. Disconnect the oil pressure gauge from hydraulic circuit.
6. When installing eye bolt (1) and copper washer (2) to oil pump
(3), refer to the figure.
CAUTION:
• Never reuse copper washers.
• Apply power steering fluid or equivalent to around copper
washer, then install eye bolt.
• Install eye bolt with eye joint (assembled to high pressure
hose) (B) protrusion (A) facing with pump side cutout, and
then tighten it to the specified torque after tightening by
hand. Refer to ST-32, "Exploded View".
• Securely insert harness connector to pressure sensor.
SGIA1379E

Revision: 2008 October ST-30 2009 370Z

 POWER STEERING OIL PUMP
< ON-VEHICLE REPAIR >
7. Check fluid level, fluid leakage and air bleeding hydraulic system after the installation. Refer to ST-7,
"Inspection". A
BEFORE DISASSEMBLY
Disassemble oil pump only when the following malfunctions occur.
• If oil leakage is found on oil pump. B
• Oil pump pulley is damaged or deformed.
• Performance of oil pump is low.
AFTER DISASSEMBLY C

Body Assembly and Rear Cover Inspection

Check body assembly and rear cover for internal damage. Replace rear cover if it is damaged. Replace oil
D
pump assembly if body assembly is damaged.
Cartridge Assembly Inspection
Check cam ring, rotor and vane for damage. Replace cartridge assembly if necessary. E
Side Plate Inspection
Check side plate for damage. Replace side plate if there are.
Flow Control Valve Inspection F
Check flow control valve and spring for damage. Replace if necessary.

ST

Revision: 2008 October ST-31 2009 370Z

 HYDRAULIC LINE
< ON-VEHICLE REPAIR >
HYDRAULIC LINE
Exploded View INFOID:0000000004470923

JSGIA0366GB

1. Collar 2. Reservoir tank bracket 3. Bushing

4. Reservoir tank 5. Clamp 6. Suction hose
7. Return hose 8. Oil cooler 9. Pressure sensor
10. Eye bolt 11. Copper washer 12. High pressure piping and low pres-
sure piping
13. O-ring
A. To power steering oil pump suction B. To power steering oil pump.
piping.

: Vehicle front
: Apply power steering fluid.
Refer to GI-4, "Components" for symbols in the figure.

Revision: 2008 October ST-32 2009 370Z

 SERVICE DATA AND SPECIFICATIONS (SDS)
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS) A
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications INFOID:0000000004470932
B

Steering gear model PR26AF

C
Fluid capacity (Approx.) (US qt, lmp qt) 1.0 (1-1/8, 7/8)

Steering Wheel Axial End Play and Play INFOID:0000000004470933

D
Unit: mm (in)

Item Standard
E
Steering wheel axial end play 0 (0)
Steering wheel play on the outer circumference 0 – 35 (0 – 1.38)

Steering Wheel Turning Torque INFOID:0000000004470934 F

Unit: N·m (kg-m, in-lb)

Item Standard ST
Steering wheel turning force 7.45 (0.76, 66)

Steering Angle INFOID:0000000004470935 H

Unit: Degree minute (Decimal degree)

Standard
Item I
Wheel size: 18 inch Wheel size: 19 inch
Minimum 36°40′ (36.67°) 34°10′ (34.17°)
Inner wheel Nominal 39°40′ (39.67°) 37°10′ (37.17°) J
Maximum 40°40′ (40.66°) 38°10′ (38.16°)
Outer wheel Minimum 33°20′ (30.34°) 31°50′ (31.84°)
K
Steering Column Length INFOID:0000000004494774

Unit: mm (in) L
Item Standard
Column length 491 – 495 (19.33 – 19.49)
M
Steering Column Mounting Dimensions INFOID:0000000004470936

Unit: mm (in)
N
Item Standard
Mounting dimension 30.0 – 32.0 (1.18 – 1.26)
O
Steering Column Operating Range INFOID:0000000004470937

Item Standard P
Tilt operating range 65 mm (2.56 in)
Rotating torque 0.39 N·m (0.04 kg-m, 3 in-lb)

Revision: 2008 October ST-33 2009 370Z

 SERVICE DATA AND SPECIFICATIONS (SDS)
< SERVICE DATA AND SPECIFICATIONS (SDS)
Lower Shaft INFOID:0000000004470938

Unit: mm (in)

Item Standard
Lower shaft length 508.8 (20.03) or less

Rack Sliding Force INFOID:0000000004470939

Unit: N (kg, lb)

Item Standard
Rack sliding force 217 – 275 (22.2 – 28.0, 48.8 – 61.8)

Rack Stroke INFOID:0000000004470940

Unit: mm (in)

Standard
Item
Wheel size: 18 inch Wheel size: 19 inch
Rack stroke neutral position 69.0 (2.72) 66.0 (2.60)

Socket Swing Force and Rotating Torque INFOID:0000000004470941

SWING FORCE
Unit: N (kg, lb)

Item Standard
Outer socket 4.81 – 45.7 (0.5 – 4.6, 1.1 – 10.2)
Inner socket 8.9 – 64 (0.91 – 6.5, 2.01 – 14.3)

ROTATING TORQUE
Unit: N·m (kg-m, in-lb)

Item Standard
Outer socket 0.3 – 2.9 (0.03 – 0.29, 3 – 25)
Inner socket 1.0 – 7.8 (0.11 – 0.79, 9 – 69)

Socket Axial End Play INFOID:0000000004470942

Unit: mm (in)

Item Standard
Outer socket 0.5 (0.02) or less
Inner socket 0.2 (0.008) or less

Inner Socket Length INFOID:0000000004470943

Unit: mm (in)

Item Standard
Rack neutral position, dimension 63.3 (2.492)

Relief Oil Pressure INFOID:0000000004470944

Unit: kPa (kg/cm2, psi)

Item Standard
Relief oil pressure 8,500 – 9,300 (86.7 – 94.9, 1,233 – 1,349)

Revision: 2008 October ST-34 2009 370Z