Infiniti G20 (P11). Manual — part 529
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If rack sliding force is not within specification, readjust by
repeating adjustment procedure from the beginning.
I
If rack sliding force is still out of specification after
readjustment, gear assembly needs to be replaced.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
RS
BT
HA
SC
EL
IDX
POWER STEERING GEAR AND LINKAGE
Adjustment (Cont’d)
ST-25
Components
NCST0037
JST938E
1.
Pulley
2.
Front bracket
3.
Oil seal
4.
Suction pipe
5.
O-ring
6.
Casing
7.
Flow control valve spring
8.
Flow control A valve
9.
Dowel pin
10. Flow control B valve assembly
11. Side plate (Front)
12. Cam ring
13. Rotor
14. Vane
15. Snap ring
16. Side plate (Rear)
17. Side plate inner seal
18. Side plate outer seal
19. O-ring
20. Rear cover
SST925C
Pre-disassembly Inspection
NCST0038
Disassemble the power steering oil pump only if the following items
are found.
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Oil leak from any point shown in the figure.
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Deformed or damaged pulley.
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Poor performance.
Disassembly
NCST0039
CAUTION:
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Parts which can be disassembled are strictly limited.
Never disassemble parts other than those specified.
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Disassemble in as clean a place as possible.
I
Clean your hands before disassembly.
I
Do not use rags; use nylon cloths or paper towels.
I
Follow the procedures and cautions in the Service
Manual.
I
When disassembling and reassembling, do not let foreign
matter enter or contact the parts.
POWER STEERING OIL PUMP
Components
ST-26
1.
Fix power steering pump to vise.
CAUTION:
When fixing the pump to vise, use an aluminum plate or such
to avoid damaging the fitting plane of the steering pump.
2.
Remove the front bracket mounting bolt, and remove the front
bracket from the casing.
3.
Remove the rear cover mounting bolt, and remove the rear
cover from the casing.
4.
Remove the O-ring from the casing.
SST926C
5.
Remove side plate (rear side) from cam ring, then remove side
plate inner/outer seals from side plate (rear side).
6.
Remove rotor snap ring using snap ring pliers, and remove
pulley from casing.
CAUTION:
Do not damage pulley shaft when removing rotor snap ring.
SST928C
7.
Remove the followings from casing.
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Cam ring
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Rotor
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Vane
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Side plate (front side)
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Flow control A valve
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Flow control valve spring
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Flow control B valve assembly
CAUTION:
Be careful not to drop flow control valve.
8.
Remove inlet connector mounting bolt, and remove inlet con-
nector from casing.
9.
Remove inlet connector seal from inlet connector.
10. Remove drive shaft seal from casing with a screwdriver.
CAUTION:
Do not damage casing surface with the screwdriver.
Inspection
NCST0040
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If pulley is cracked or deformed, replace it.
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If an oil leak is found around pulley shaft oil seal, replace the
seal.
I
Check the casing and the inside of the rear body for damage.
If damages are found in the rear body, replace the entire rear
body. If the casing is damaged, replace the entire power steer-
ing pump as an assembly.
I
Check the cam ring for damage. If damage is found, replace
the cam ring, rotor and vane as a set.
I
Check the side plates (front and rear) for damage. If damage
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
RS
BT
HA
SC
EL
IDX
POWER STEERING OIL PUMP
Disassembly (Cont’d)
ST-27
is found, replace the side plates as a set (front and rear).
SST934C
Assembly
NCST0041
1.
Apply grease to the lip of the drive shaft seal, and attach the
casing.
CAUTION:
The drive shaft seal cannot be reused. Always replace after
every disassembly.
SST928C
2.
When removing the dowel pin, if it is difficult to insert with your
hands, insert into the casing by tapping lightly with a hammer
or similar tool.
3.
Attach the flow control A valve, flow control valve spring, and
the flow control B valve assembly to the locations indicated in
the drawing left.
SST929C
4.
Match the dowel pin A on the flow control A valve side with the
notch B of the side plate (front), and attach the side plate (front)
to the casing.
SST930C
5.
Face the cam ring side with fewer pores towards the casing,
and attach the cam ring on top of the side plate (front).
6.
Attach the pulley to the casing.
CAUTION:
Attach with care so as not to damage the drive shaft seal.
POWER STEERING OIL PUMP
Inspection (Cont’d)
ST-28
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