Infiniti G35 (V35). Manual - part 678

PS-22

POWER STEERING GEAR

POWER STEERING GEAR

PFP:49001

Disassembly and Assembly

NGS000BH

COMPONENTS

1.

Outer socket

2.

Boot clamp

3.

Boot 

4.

Inner socket

5.

Boot clamp 

6.

End cover assembly

7.

Rack oil seal

8.

Rack Teflon ring

9.

O-ring

10. Rack assembly

11.

Rack oil seal

12. Gear housing assembly

13. Cylinder tubes

14. Power steering solenoid valve

(with EPS)

15. O-ring

16. Gear sub-assembly

17. Rear cover cap

Refer to 

GI-10, "Components"

 , and the followings for the symbols in the figure.

: Apply Genuine Thread Locking Sealant, Three Bound 1111B or equivalent.

SGIA1476E

POWER STEERING GEAR

PS-23

C

D

E

F

H

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K

L

M

A

B

PS

CAUTION:

●

Secure steering gear assembly with a vise, using copper
plates or something similar to prevent it from being dam-
aged. Do not grip cylinder with a vise.

●

Before performing disassembly, clean steering gear assem-
bly with kerosene. Be careful not to bring any kerosene into
contact with the discharge and return port connectors. 

DISASSEMBLY

1.

Remove fixing bolts of power steering solenoid valve, and then remove power steering solenoid valve
from gear-sub assembly (with EPS). 

2.

Remove cylinder tubes from gear housing assembly.

3.

Remove rear cover cap from gear sub-assembly.

4.

Measure adjusting screw height from gear housing assembly,
then loosen adjusting screw.

CAUTION:

●

Do not turn adjusting screw more than twice.

●

Replace steering gear assembly when adjusting screw is
removed or more than twice.

5.

Remove fixing bolts of gear sub-assembly and then remove
gear sub-assembly from gear housing assembly.

6.

Remove O-ring from gear housing assembly.

7.

Loosen lock nut of outer socket, and remove outer socket.

8.

Remove boot clamps of the small diameter side and the large
diameter side, then remove boots.

CAUTION:

On removing boots, be careful not to damage the inner socket and the gear housing assembly. If
they are is damaged, change them to avoid oil leaks.

9.

Drill out the clinching part of cylinder outer rim with a 3 mm (0.12
in) drill in 1.5 mm (0.059 in) depth.

: Apply multi-purpose grease.

: Apply Genuine NISSAN PSF or equivalent.

SGIA0360E

SGIA0568E

STC0013D

PS-24

POWER STEERING GEAR

10. Remove end cover assembly with a 42 mm (1.65 in) open head

(suitable tool).

CAUTION:

Be careful not to damage rack. If it is damaged, replace
rack. Otherwise, oil leaks may result.

11. Pull rack with rack oil seal out of gear housing assembly.

CAUTION:

Be careful not to damage rack. If it is damaged, change to a
new one to avoid oil leaks.

12. Heat rack Teflon ring to approximately. 40

°

C (104

°

F) with a

dryer, then remove it and O-ring from rack assembly.

CAUTION:

Be careful not to damage rack. If it damaged, change to a
new one to avoid oil leaks.

13. Use a taped 29 mm (1.14 in) socket and an extension bar.

Remove rack oil seal from gear housing assembly.

CAUTION:

Be careful not to damage gear housing assembly and cylin-
der inner wall. If it is damaged, gear housing assembly
must be replaced. Otherwise, oil leaks will result.

INSPECTION AFTER DISASSEMBLY
Boot

Check boot for cracks and deformation. Replace it, if necessary.

Rack Assembly

Check rack for damage and wear. Replace it, if necessary.

Gear Sub-Assembly

●

Check pinion gear for damage and wear. Replace it, if necessary.

●

Rotate pinion and check for torque variation or rattle. Replace if necessary.

Gear Housing Assembly 

Check gear housing assembly for damage and scratches (inner wall). Replace it, if necessary.

SST081B

SGIA0151E

SGIA0454E

POWER STEERING GEAR

PS-25

C

D

E

F

H

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A

B

PS

Outer Socket and Inner Socket

Swing Torque

●

Hook a spring balance at the point shown in the figure. Confirm
if the reading is within the specification. When ball stud and
inner socket start moving the measured value must be within the
specification. If the reading is outside the specification, replace
socket. 

Specified value

Rotating torque

●

Using a preload gauge (SST), check if reading is within the
value specified below. If the value is outside the standard,
replace outer sockets.

Axial End Play

●

Apply load of 490 N (50 kg,110 lb) to ball stud axially. Use a dial
gauge to measure the amount of the movement that the stud
makes. Check if the reading is within the specified below. If the
value is outside the standard, replace outer and inner sockets.

SGIA0493E

Item

Outer socket

Inner socket

Measuring point

Cotter pin hole of stud

Shown as L: 48.5 mm (1.909 in)

Swing torque

0.3 - 2.9 N·m (0.03 - 0.29 kg-m,3 - 25 in-lb)

1.0 - 7.8 N·m (0.11 - 0.79 kg-m, 9 - 69 in-lb)

Measuring value

4.42 - 42.7 N (0.5 - 4.4 kg, 1 - 10 lb)

10 - 78 N (1 - 8 kg, 2 - 18 lb)

Rotating torque

0.3 - 2.9 N·m (0.03 - 0.29 kg-m, 3 - 25 in-lb)

SGIA0941E

Outer socket

0.5 mm (0.020 in) or less

Inner socket

0.2 mm (0.008 in) or less

SGIA1437E