Nissan Silvia. Instruction — part 340
SST713C
19. Prevent adjusting screw from turning, and tighten lock nut to
specified torque.
SST966C
20. Measure the rotational torque of the pinion gear to confirm that
it is within the specified torque range. If it is out of the speci-
fied range, readjust it. If it is still out of specifications after
readjustment, replace the power steering gear.
Pinion rotational torque: Near neutral position (within
±
100°)
Average value A: 0.8 - 1.2 N·m (0.08 - 0.13 kg-m, 7 -
11 in-lb)
Maximum fluctuation value B: Less than 0.4 N·m
(0.04 kg-m, 3 in-lb)
Other than the above
Maximum value C: Less than 1.9 N·m (0.19 kg-m, 16
in-lb)
Maximum fluctuation value D: Less than 0.6 N·m
(0.06 kg-m, 5 in-lb)
JST967C
21. Rotate the pinion counterclockwise as far as it will go.
22. Set the dial gauge as shown in the figure at left. Rotate the
pinion to 5 N·m (0.5 kg-m, 43 in-lb), then measure the amount
of rack vertical movement using the dial gauge. Make sure that
the measured value is within the specifications. If it is out of
specifications, readjust it. If it is still out of specifications after
readjustment, replace the power steering gear.
Measurement position (Rack radial direction):
Adjusting screw axial direction
Specified value (Rack radial direction):
Max. 0.13 mm (0.0051 in)
SST867C
23. Tighten outer socket lock nut.
Tie-rod length “L”:
Refer to SDS, ST-30.
POWER STEERING GEAR AND LINKAGE
Assembly (Cont’d)
ST-22
SST086BA
24. Measure rack stroke.
Rack stroke “S”:
Refer to SDS, ST-30.
JST968C
25. Before assembling the boot, temporarily install the boot band
to the larger-diameter side.
26. Apply grease to the larger- and smaller- diameter sides.
27. Fit the boot smaller-diameter side into the boot-installation
groove on the inner socket. Then use a boot clamp to attach
the smaller-diameter side to the inner socket.
28. Install the boot band to the larger-diameter side.
SST868C
29. Install boot bands.
I
Securely install boot band to boot groove and clinch the root
section of the trapezoidal area.
I
Make sure that there is a clearance of 3.5 mm (0.138 in) or less
at the clinched section of the boot band. Refer to the Figure at
left.
SST869C
I
After installing gear in vehicle, make sure that the clinched
section of boot band is positioned toward the rear of vehicle (to
prevent interference with adjacent parts).
SST972C
Adjustment
NMST0026
Adjust pinion rotating torque as follows:
1.
Set rack to the neutral position without fluid in the gear.
2.
Coat the adjusting screw with locking sealant and screw it in.
3.
Lightly tighten lock nut.
4.
Tighten adjusting screw to a torque of 4.9 to 5.9 N·m (50 to 60
kg-cm, 43 to 52 in-lb).
5.
Loosen adjusting screw, then retighten it to 0.2 N·m (2 kg-cm,
1.7 in-lb).
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
BR
RS
BT
HA
SC
EL
IDX
POWER STEERING GEAR AND LINKAGE
Assembly (Cont’d)
ST-23
SST072BB
6.
Move rack over its entire stroke several times.
7.
Measure pinion rotating torque within the range of 180° from
neutral position.
Stop the gear at the point of maximum torque.
8.
Loosen adjusting screw, then retighten it to 4.9 N·m (50 kg-cm,
43 in-lb).
9.
Loosen adjusting screw by 60° to 80°.
SST713C
10. Prevent adjusting screw from turning, and tighten lock nut to
specified torque.
SST966C
11. Measure the rotational torque of the pinion gear to confirm that
it is within the specified torque range.
Pinion rotational torque: Near neutral position (within
±
100°)
Average value A: 0.8 - 1.2 N·m (0.08 - 0.13 kg-m, 7 -
11 in-lb)
Maximum fluctuation value B: Less than 0.4 N·m
(0.04 kg-m, 3 in-lb)
Other than the above
Maximum value C: Less than 1.9 N·m (0.19 kg-m, 16
in-lb)
Maximum fluctuation value D: Less than 0.6 N·m
(0.06 kg-m, 5 in-lb)
I
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.
POWER STEERING GEAR AND LINKAGE
Adjustment (Cont’d)
ST-24
Components
NMST0027
SST970C
1.
Pulley
2.
Snap ring
3.
Drive shaft assembly
4.
Oil seal
5.
Suction pipe
6.
O-ring
7.
Spring
8.
Flow control valve
9.
O-ring
10. Connector bolt
11. O-ring
12. Joint
13. Washer
14. Hose
15. Eye bolt
16. Casing
17. O-ring
18. O-ring
19. Front side plate
20. Vane
21. Rotor
22. Pin
23. Cam ring
24. Gasket
25. Rear cover
26. Front bracket
27. Power steering pump bracket
28. Adjusting bar
29. Adjusting bolt
30. Adjusting bolt lock nut
SST793B
Pre-disassembly Inspection
NMST0028
Disassemble the power steering oil pump only if the following items
are found.
I
Oil leak from any point shown in the figure
I
Deformed or damaged pulley
I
Poor performance
GI
MA
EM
LC
EC
FE
CL
MT
AT
PD
AX
SU
BR
RS
BT
HA
SC
EL
IDX
POWER STEERING OIL PUMP
Components
ST-25
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