Nissan Pathfinder (2008 year). Manual - part 579

 

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Nissan Pathfinder (2008 year). Manual - part 579

 

 

HYDRAULIC LINE

ST-27

< REMOVAL AND INSTALLATION >

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VK56DE ENGINE

AWGIA0026GB

1.

Reservoir tank

2.

Suction hose

3.

High pressure hose

4.

Oil cooler

5.

Steering gear assembly

6.

Reservoir tank bracket

7.

Eye bolt

8.

Return hose

⇐

Front

ST-28

< DISASSEMBLY AND ASSEMBLY >

POWER STEERING OIL PUMP

DISASSEMBLY AND ASSEMBLY

POWER STEERING OIL PUMP

Disassembly and Assembly

INFOID:0000000001297926

VQ40DE ENGINE

VK56DE ENGINE

LGIA0036E

1.

Connector

2.

Suction pipe

3.

O-ring

4.

Bracket

5.

Pulley

6.

Lock washer

7.

Body assembly

8.

Copper washers

LGIA0038E

1.

Bracket

2.

Spring washer

3.

Pulley

POWER STEERING OIL PUMP

ST-29

< DISASSEMBLY AND ASSEMBLY >

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INSPECTION BEFORE DISASSEMBLY

Disassemble the power steering oil pump only if the following items are found.
• Deformed or damaged pulley, bracket, connector or suction pipe
• Oil leakage from the suction pipe or connector. 

DISASSEMBLY

NOTE:
Mount the power steering oil pump in a vise as needed.
1.

Remove the connector bolt, connector and copper washers.

CAUTION:

Do not reuse the copper washers.

2.

Remove the suction pipe and O-ring.

CAUTION:

Do not reuse the O-ring.

3.

Remove the pulley nut and pulley.

4.

Remove the bracket bolts and bracket(s).

INSPECTION AFTER DISASSEMBLY

Body Assembly Inspection

Check the power steering oil pump body assembly for damage. If any damage is found, replace with a new
power steering oil pump assembly.

ASSEMBLY

Assembly is in the reverse order of disassembly.

CAUTION:

• Do not reuse the copper gaskets
• Do not reuse the O-ring. Apply a coat of Genuine NISSAN PSF or equivalent to the O-ring. Refer to

MA-10, "Fluids and Lubricants"

.

4.

Power steering pump

5.

High pressure bracket

6.

O-ring

7.

Suction pipe

⇐

Front

Apply Genuine NISSAN PSF

ST-30

< DISASSEMBLY AND ASSEMBLY >

STEERING GEAR AND LINKAGE

STEERING GEAR AND LINKAGE

Disassembly and Assembly

INFOID:0000000001297922

CAUTION:

• Secure the gear housing assembly with a vise. Use copper plates or equivalent to prevent it from

being damaged. Do not grip the cylinder with a vise.

• Before performing disassembly, clean the gear housing assembly. Be careful not to allow any

cleaner to contact the discharge and return port connectors.

DISASSEMBLY

1.

Remove the cylinder tubes from the gear housing assembly.

2.

Loosen the lock nuts of the outer sockets, then remove the outer sockets from the inner sockets.

3.

Remove the boot clamps from the boots, then remove the boots from the inner sockets and gear housing
assembly.

CAUTION:

• Do not reuse the large-diameter boot clamps.
• Do not damage the boots, inner socket or gear housing assembly. If they are damaged, replace

them.

4.

Remove the inner sockets.

INSPECTION AFTER DISASSEMBLY

Boot

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

1.

Boot clamp

2.

Inner socket

3.

Boot

4.

Boot clamp

5.

Outer socket

6.

Cylinder tubes

7.

Gear housing assembly

8.

Connector

WGIA0171E

STEERING GEAR AND LINKAGE

ST-31

< DISASSEMBLY AND ASSEMBLY >

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Gear Housing Assembly

Check gear housing assembly for dents, cracks or damage. Replace as an assembly if necessary.

Outer Socket and Inner Socket

SWING TORQUE

• Measure the swing torque, using Tool. When ball stud and inner

socket start moving the measured value must be within the specifi-
cation. If the reading is outside the specification, replace the
socket.

ROTATING TORQUE

• Measure the rotating torque, using Tool. If the value is outside the

specification, replace the outer sockets.

AXIAL END PLAY

• Apply a load of 490 N (50 kg-f, 110 lb-f) to the ball stud axially. Use

a dial gauge to measure the amount of the movement that the stud
makes. If the value is outside the specification, replace the sock-
ets.

ASSEMBLY

1.

Install the inner sockets.

Tool number

:

—

(J-44372)

WGIA0131E

Item

Outer socket

Inner socket

Measuring point

Cotter pin hole of stud 

Shown as L: 83.2 mm (3.276 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

4.84 

−

 46.7 N (0.50 

−

 4.7 kg-f, 4 

−

 34 lb-f)

12.1 

−

 93.7 N (1.3 

−

 9.5 kg-f, 9 

−

 69 lb-f)

Tool number

: ST3127S000 (J-25765-A)

Outer socket 
rotating torque

: 0.3 

−

 2.9 N·m (0.03 

−

 0.29 kg-m, 

3 

−

 25 in-lb)

WGIA0132E

Outer socket

: 0.5 mm (0.020 in) or less

Inner socket

: 0.2 mm (0.08 in) or less

SGIA0057E

ST-32

< DISASSEMBLY AND ASSEMBLY >

STEERING GEAR AND LINKAGE

2.

Install the large-diameter side of the boots to the gear housing
assembly.

3.

Install the small-diameter side of the boots to the groove of the
inner sockets.

4.

Install the boot clamps to the boots, as shown.

CAUTION:

Do not reuse the large boot clamps.

5.

Crimp the large boot clamps, using Tool.

6.

Install the cylinder tubes to the gear housing assembly.

7.

Install the lock nuts and outer sockets to the inner sockets.

8.

Thread the outer sockets onto the inner sockets to the specified
length "L", then tighten the lock nuts to the specified torque.
Refer to "Disassembly and Assembly". Reconfirm that the tie-
rod length "L" is within specification.

SGIA0550E

AST139

Tool number

: KV40107300 (

—

)

RAC1133D

Maximum inner socket 
length "L"

: 84.0 mm (3.31 in)

SGIA0167E

SERVICE DATA AND SPECIFICATIONS (SDS)

ST-33

< SERVICE DATA AND SPECIFICATIONS (SDS) 

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Steering Wheel

INFOID:0000000001297928

Steering Column

INFOID:0000000001297929

Steering Outer Socket and Inner Socket

INFOID:0000000001297930

End play of the axle direction for steering wheel

0 mm (0 in)

Steering wheel turning force

39 N (4 kg-f, 9 lb-f) or less

Steering wheel play on the outer circumference

0 

−

 35 mm (0 

−

 1.38 in)

Steering column length “L1”

165.1 mm (6.500 in)

Steering column length “L2”

258.0 mm (10.16 in)

Tilt range "A"

73.8 mm (2.906 in)

SGIA0475E

WGIA0083E

Steering gear type

PR26AM

SGIA0358E

ST-34

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

Oil Pump

INFOID:0000000001297931

Steering Fluid

INFOID:0000000001297932

Outer socket

Swinging torque

0.3 

−

 2.9 N·m (0.03 

−

 0.29 kg-m, 3 

−

 25 in-lb)

Measurement on spring balance
• Measuring point: cotter pin hole of stud

4.84 

−

 46.7 N (0.50 

−

 4.7 kg-f, 4 

−

 34 lb-f)

Rotating torque

0.3 

−

 2.9 N·m (0.03 

−

 0.29 kg-m, 3 

−

 25 in-lb)

Axial end play

0.5 mm (0.020 in) or less

Inner socket

Swinging torque

1.0 

−

 7.8 N·m (0.11 

−

 0.79 kg-m, 9 

−

 69 in-lb)

Measurement on spring balance
• Measuring point: L mark see above, 

L=83.2 mm (3.276 in).

12.1 

−

 93.7 N (1.3 

−

 9.5 kg-f, 9 

−

 69 lb-f)

Axial end play

0.2 mm (0.08 in) or less

Tie-rod maximum length “L” 

84.0 mm (3.31 in)

Steering gear type

PR26AM

SGIA0167E

Oil pump relief hydraulic pressure

8.0 

−

 8.8 mPa (81.60 

−

 89.76 kg/cm

2

, 1160.0 

−

 1276.0 psi)

Fluid capacity

Approx. 1.0 

 (2 1/8 US pt, 1 3/4 Imp pt)

 

 

 

 

 

 

 

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