Infiniti Q45. Manual - part 752

POWER STEERING GEAR

PS-25

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e.

Bent cut end of the wire toward rack axial as shown in the figure
after twisting the wire 4 to 4.5 turns so that cut end does not con-
tact with boot.

CAUTION:

Keep gap from cylinder tube 5 mm (0.20 in) or more.

21. Install cylinder tubes to gear housing assembly. Tighten the bolts to the specified torque. Refer to 

PS-17,

"COMPONENT"

 .

CAUTION:

Never reuse the copper washer.

22. Adjust inner socket to standard length “L”, and then tighten lock

nut to the specified torque. Refer to 

PS-17, "COMPONENT"

  .

Check length of inner socket “L” again after tightening lock nut.
Make sure that the length is the standard.

CAUTION:

Adjust toe-in after this procedure. Length achieved after
toe-in adjustment is not necessary the above value.

STC0124D

Inner socket length “L”

: 160 mm (6.30 in)

SGIA1512E

PS-26

POWER STEERING OIL PUMP

POWER STEERING OIL PUMP

PFP:49110

On-Vehicle Service

NGS000CL

RELIEF OIL PRESSURE

CAUTION:

Before starting work, confirm belt tension is proper.

1.

Connect pressure gauge (SST) and pressure gauge adapter
(SST) between power steering oil pump discharge connector
and high pressure hose. Bleed air from the hydraulic circuit
while opening valve fully. Refer to 

PS-7, "Air Bleeding Hydraulic

System"

 .

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.

Fully close the pressure gauge (SST) valve with engine at idle and measure the relief oil pressure.

CAUTION:

Never keep valve closed for 10 seconds or longer.

4.

Open the valve slowly after measuring. Repair power steering oil pump is the relief oil pressure is outside
the standard. Refer to 

PS-28, "Disassembly and Assembly"

 .

5.

Apply Genuine Nissan PSF or equivalent to around O-ring (1),
then install eye-bolt (2). Install eye-bolt (2) with eye-joint
(assembled to high pressure hose) protrusion (A) facing with
pump side cutout, and then tighten it to the specified torque after
tightening by hand. Refer to 

PS-27, "COMPONENTS"

 .

6.

After inspection, disconnect the pressure gauge (SST) from
hydraulic circuit, then add fluid and bleed air. Refer to 

PS-7, "Air

Bleeding Hydraulic System"

 .

Relief oil pressure:

8,500 - 9,300 kPa (88 - 94 kg/cm

2

 , 1,251 - 1,337 psi)

SST834-F

SGIA1598E

POWER STEERING OIL PUMP

PS-27

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Removal and Installation

NGS0002Y

COMPONENTS

REMOVAL

1.

Drain power steering fluid from reservoir tank.

2.

Remove undercover from vehicle with a power tool.

3.

Loosen drive belt. Refer to 

EM-15, "Power Steering Oil Pump Belt"

 .

4.

Remove drive belt from pulley of oil pump.

5.

Remove eye-bolt, high pressure hose and suction hose.

6.

Remove oil pump mounting bolts, and then remove oil pump assembly.

INSTALLATION

Note the following, and Installation is the reverse order of removal.

●

Refer to 

PS-27, "COMPONENTS"

  about each tightening torque.

●

Install eye-bolt, high pressure hose and suction hose. Refer to 

PS-27, "COMPONENTS"

 .

●

Perform the following procedure after installing.

–

Drive belt. Refer to 

EM-14, "Checking Drive Belts"

 .

–

Bleed air. Refer to 

PS-7, "Air Bleeding Hydraulic System"

 .

1.

Oil pump bracket

2.

Suction hose

3.

Clamp

4.

Oil pump assembly

5.

O-ring

6.

Eye-bolt

7.

High pressure hose

Refer to 

GI-9, "Components"

  and the followings for the symbols in the figure.

: Apply Genuine Nissan PSF or equivalent.

SGIA1367E

PS-28

POWER STEERING OIL PUMP

Disassembly and Assembly

NGS0002Z

COMPONENT

1.

Spring washer

2.

Pulley

3.

Snap ring

4.

Drive shaft assembly

5.

Oil seal

6.

Suction pipe

7.

O-ring

8.

Spring

9.

Flow control valve

10. O-ring

11.

Connector bolt

12. Joint

13. Washer

14. Body assembly

15. O-ring

16. Side plate

17. Cartridge

18. Vane

19. Rotor

20. Cam ring

21. Dowel pin

22. Gasket

23. Rear cover

A:

Oil seal lip

Refer to 

GI-9, "Components"

  and the followings for the symbols in the figure.

: Apply Genuine Nissan PSF or equivalent.

SGIA1369E