Infiniti FX35, FX50 (S51). Manual - part 1758

ST-24

< REMOVAL AND INSTALLATION >

LOWER SHAFT

LOWER SHAFT

Exploded View

INFOID:0000000005235279

Removal and Installation

INFOID:0000000005235280

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. Be sure to secure steering wheel using string to avoid
turning.

5.

Remove the accelerator pedal bracket and lever assembly.
Refer to 

ACC-3, "MODELS WITHOUT DISTANCE CONTROL

ASSIST SYSTEM : Exploded View"

 (without distance control

assist system), 

ACC-4, "MODELS WITH DISTANCE CONTROL

ASSIST SYSTEM : Exploded View"

 (with distance control assist

system).

6.

Remove the parking brake wire clamp stay.

7.

Remove the hole cover mounting nuts.

8.

Remove the upper joint fixing bolt and nut (lower shaft side).

9.

Remove the lower shaft and hole cover.

10. Remove collar, hole cover seal, clamp and hole cover.

INSTALLATION

Note the following, and install in the reverse order of removal.

CAUTION:

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.

JSGIA0357GB

JSGIA0035ZZ

LOWER SHAFT

ST-25

< REMOVAL AND INSTALLATION >

C

D

E

F

H

I

J

K

L

M

A

B

ST

N

O

P

Spiral cable may be cut if steering wheel turns while separating steering column assembly and steer-
ing gear assembly. Be sure to secure steering wheel using string to avoid turning.
• Tighten the clamp to the specified torque and check the clamp

length (A).

• 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 inter-
mediate position of the distance.

- Align rear cover cap projection (A) with the marking position of

gear housing assembly (B).

- 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).

• Adjust neutral position of steering angle sensor. Refer to 

BRC-9,

"ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Special Repair Requirement"

. 

• Check the following 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-14, "Inspection"

.

Inspection

INFOID:0000000005235281

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

• Check each part of lower shaft for damage or other malfunctions.

Replace if there are.

A

: 14.0 – 18.0 mm (0.551 – 0.709 in)

: Bolt

JSGIA0094ZZ

JSGIA0111ZZ

Standard

A

: Refer to 

ST-51, "Lower 

Shaft Sliding Range"

.

JSGIA0358ZZ

ST-26

< REMOVAL AND INSTALLATION >

STEERING GEAR AND LINKAGE

STEERING GEAR AND LINKAGE

Exploded View

INFOID:0000000005235282

REMOVAL 

DISASSEMBLY

1.

Steering gear assembly

2.

Cotter pin

3.

Rack stay

: Vehicle front

Refer to 

GI-4, "Components"

 for symbols in the figure.

JSGIA0641GB

1.

Low pressure piping

2.

Rear cover cap

3.

Gear-sub assembly

4.

Power steering solenoid valve

5.

O-ring

6.

Adjusting screw

7.

Spring

8.

Retainer

9.

Outer socket

JSGIA0428GB

STEERING GEAR AND LINKAGE

ST-27

< REMOVAL AND INSTALLATION >

C

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A

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Removal and Installation

INFOID:0000000005235283

REMOVAL

1.

Set the vehicle to the straight-ahead position.

2.

Remove tires with a power tool.

3.

Remove floor under cover. Refer to 

EXT-31, "Exploded View"

. 

4.

Remove front cross bar. Refer to 

FSU-13, "Exploded View"

 (2WD), 

FSU-32, "Exploded View"

 (AWD).

5.

Remove cotter pin (1), and then loosen the nut.

6.

Remove steering outer socket (2) from steering knuckle (3) so
as not to damage ball joint boot (4) using a ball joint remover
(commercial service tool).

CAUTION:

Temporarily tighten the nut to prevent damage to threads
and to prevent the ball joint remover from suddenly coming
off.

7.

Remove high pressure piping and low pressure piping of
hydraulic piping, and then drain power steering fluid.

8.

Remove power steering solenoid valve harness connector (1)
and harness clip.

9.

Remove steering hydraulic piping bracket (VK50VE).

10. Remove rack stay. Refer to 

ST-26, "Exploded View"

.

11. Remove lower joint fixing bolt (steering gear side).

12. Separate the lower shaft from the steering gear assembly by

sliding the side 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. Be sure to secure steering wheel using string to avoid
turning.

13. Remove steering gear assembly.

INSTALLATION

Note the following, and install in the reverse order of removal.

10. Boot clamp 

11.

Boot 

12. Inner socket

13. Boot clamp (stainless wire)

14. Spacer

15. Cylinder tubes

16. Gear housing assembly

17. Rack oil seal

18. Rack assembly

19. Rack Teflon ring

20. End cover assembly

: Apply power steering fluid.

: Apply Genuine High Performance Thread Sealant or equivalent. Refer to 

GI-16, "Recommended Chemical Products and 

Sealants"

.

 

: Apply Genuine Silicone RTV or equivalent. Refer to 

GI-16, "Recommended Chemical Products and Sealants"

.

: Apply multi-purpose grease.

Refer to 

GI-4, "Components"

 for symbols not described on the above.

PGIA0063E

JSGIA0360ZZ

JSGIA0035ZZ