Nissan Frontier. Manual — part 1186
STEERING COLUMN
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INSPECTION AFTER ASSEMBLY
When the steering wheel does not turn smoothly, check as follows:
1. Check the steering column for the following:
• Damage to the column tube or bearings
• Wear around the seal edges
• Corrosion or pitting around the seal sliding area
Replace the steering column as an assembly, if necessary.
CAUTION:
• Do not exert any axial load or impact to the steering column.
• Replace the column if it is depleted of grease, worn, damaged, or if any scratches or coating
separation is present on the shaft seal area.
2. If the vehicle has been in a collision, or if noises are heard coming from the steering column, check col-
umn length. If out of specification, replace the steering column as an assembly.
3. Check the tilt device for proper operation range.
Steering column
length (L)
AWGIA0147ZZ
Range (A)
WGIA0083E
ST-24
< UNIT DISASSEMBLY AND ASSEMBLY >
POWER STEERING OIL PUMP
POWER STEERING OIL PUMP
Component
INFOID:0000000009479927
QR25DE
AWGIA0125GB
1.
Joint
2.
Suction pipe
3.
O-ring
4.
Front bracket
5.
Pulley
6.
Lock washer
7.
Body assembly
8.
Copper sealing washers
9.
Flow control valve and spring
10. Connector
11. Rear bracket
Apply Genuine Nissan PSF or equivalent
POWER STEERING OIL PUMP
ST-25
< UNIT DISASSEMBLY AND ASSEMBLY >
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VQ40DE
Disassembly and Assembly
INFOID:0000000009479928
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 joint bolt, joint and copper sealing washers.
CAUTION:
Do not reuse copper sealing washers.
2. On QR25DE model, remove connector and flow control valve with spring.
3. Remove the suction pipe and O-ring.
CAUTION:
Do not reuse O-ring.
4. Remove the pulley nut and pulley.
5. 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.
AWGIA0137GB
1.
Joint
2.
Suction pipe
3.
O-ring
4.
Front bracket
5.
Pulley
6.
Lock washer
7.
Body assembly
8.
Copper sealing washers
Apply Genuine Nissan PSF or equivalent
ST-26
< UNIT DISASSEMBLY AND ASSEMBLY >
POWER STEERING OIL PUMP
CAUTION:
• Do not reuse O-ring or copper sealing washers.
• Apply a coat of Genuine NISSAN PSF or equivalent to the O-ring.
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