steering MAZDA 626 1987 Owners Manual

1 0 ENGINE SPEED SENSING POWER STEERING
Pinion shaft assembly
1. Apply grease (lithium base, NLGI No. 2) to the teeth
of the pinion shaft.
2. Apply ATF to the seal ring and the friction surface
of the control valve.
3. Install the pinion shaft in the housing.
Note
a) Be careful not to damage the oil seal by the
teeth of the pinion.
b) Be careful not to damage the edge of the
seal ring and control valve.
76G10X-038
76G10X-039
86U10X-165
Upper bearing
Apply ATF to the upper bearing, and then install it.
Oil seal
1. Apply ATF to the oil seal, and fill inside the lip with
grease (lithium base, NLGI No. 2).
2. Slide the SST over the serrations of the pinion shaft
assembly.
3. Slide the oil seal over the SST and position it in
the housing.
4. Tap the oil seal in with the SST until the snap ring
installation groove in the housing is just visible.
Note
Apply uniform force to the oil seal when in-
stalling.
86U10X-166

ENGINE SPEED SENSING POWER STEERING 1 0
86u10x-167
86u10x-168
86u10x-169
Snap ring
Install the snap ring.
Note
Verify that the snap ring is correctly seated
in the ring groove of the housing.
Locknut
1. Temporarily install the tie-rod on the tube side of
the rack.
2. Install the locknut and turn it until the tie-rod con-
tacts the tube.
3. Tighten the locknut.
Tightening torque:
39—49 N
m
(4.0—5.0 m-kg, 29—36 ft-lb)
Housing cover
1. Apply thread sealant to the housing cover threads.
2. Install the housing cover.
Tightening torque:
44—54 N-m (4.5—5.5 m-kg, 33—40 ft-lb)
3. Stake between the rack housing and housing cover
at two points with a center punch.
86U10X-170
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1 0 ENGINE SPEED SENSING POWER STEERING
Pressure pad
1. Secure the gear housing in a vise so that the pres-
sure pad position faces upward.
2. Apply grease (lithium base NLGI No. 2) to the rack
sliding surface of the pressure pad; then install it
in the housing.
3. Install the pressure pad.
86U1OX-171
Adjust cover
1. Set the rack in the center position.
2. Tighten the adjust cover to 9.8 N-m (100 cm-
kg, 7.2 ft-lb) then loosen it.
3. Tighten again to 4.9 ± 0.5 N-m (50 ± 5 cm-
kg, 3.6 ± 0.4 ft-lb), and then return it 45°.
4. Apply thread sealant to the exposed threads of ad-
just cover.
86U10X-172
5. Install and tighten the locknut.
Tightening torque:
49—59 N-m (5.0—6.0 m-kg, 36—43 ft-lb)
86U10X-173
Tie-rod
1. Secure the rack in a vise.
2. Install the tie rod on the rack.
Tightening torque:
123—143 N-m
(12.5—14.5 m-kg, 90.6—105 ft-lb)
86U10X-174
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ENGINE SPEED SENSING POWER STEERING 1 0
3. Tap in a new roll pin.
86U10X-175
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vlM^lPl'' \f ) j//
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Boot
1. Apply grease to the inner surface of the small end
of the boot.
2. Install the boot. Wrap a new wire around the large
end of the boot two times and then twist it 4 to 4.5
times. Bend the twisted part toward the mounting
bracket.
Note
Be careful not to break the boot wire.
3. Install the spring clip on the small end of the boot.
86U10X-176
Tie-rod end
Align with the mark made before disassembly, and
then tighten the nut.
86U10X-177
Oil pipe
Secure the mounting bracket in a vise so that the oil
pipe connections face upward.
86U10X-178
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1 0 ENGINE SPEED SENSING POWER STEERING
Oil pressure switch
1. Install the pressure switch O-ring in the gear
housing.
2. Install the oil pressure switch.
Tightening torque:
31—36 N-m (3.2—3.7 m-kg, 23—27 ft-lb)
10—74

ELECTRONICALLY-CONTROLLED POWER STEERING 1 0
ELECTRONICALLY-CONTROLLED POWER STEERING
DISASSEMBLY
Disassemble in the sequence shown in the figure, referring to the disassembly note for specially marked
parts.
Caution
a) Because adjustment of the spool valve is not possible, do not disassemble the gear box
for spool valve repairs. If repairs are necessary, replace the gear box assembly.
b) In order to prevent the entrance of dirt, all disassembly and assembly should be done
in a clean area.
c) Before disassembly, plug the openings of all pipe installation fittings; then thoroughly
clean the steering gear and linkage.
86U10X-180
1. Pipe
2. Solenoid valve
3. Tie-rod end
4. Tie-rod end locknut
5. Spring clip
6. Boot wire
7. Boot
8. Tie-rod
9. Adjust cover locknut
10. Adjust cover
11. Spring
12. Pressure pad
13. Outer box assembly
14. Oil seal
15. Mounting bracket
16. Mounting rubber
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1 0 ELECTRONICALLY-CONTROLLED POWER STEERING
Disassembly Note
Steering gear and linkage
Secure the mount part of the removed gear and link-
age in a vise.
Caution
Insert protective material (such as copper
plates) in the jaws of the vise.
86U10X-181
Tie-rod ends
Before removing the tie-rod ends, make a mark for
proper installation.
86U10X-182
Oil pipe
Mark the pressure and return pipes and the valve
case for proper installation. Remove the pipes.
86U10X-183
Solenoid valve
Remove the solenoid valve.
86U10X-184
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ELECTRONICALLY-CONTROLLED POWER STEERING 1 0
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I I
86U10X-185
63U10X-127
86U10X-186
Tie-rods
1. Uncrimp the washer as shown in the figure.
2. Remove the tie-rod from the rack.
Locknut and adjust cover
Loosen the locknut and remove the adjust cover,
spring, and pressure pad.
Outer box
Protect the outer box with cloth and remove it with
a pipe wrench.
86U10X-187
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1 0 ELECTRONICALLY-CONTROLLED POWER STEERING
Oil seal
Remove the oil seal with a screwdriver.
86U10X-188
INSPECTION
Check the following and replace any faulty parts.
1. Cracked, damaged, or deteriorated boots
2. Worn pressure pad friction surface
3. Loose or sticking tie-rod ball joint
4. Bent or damaged tie-rod or tie-rod end
86U10X-189
5. Worn outer box bushing
86U10X-190
6. Cracked or damaged gear housing
7. Steering gear oil leakage
86! I10X-191
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ELECTRONICALLY-CONTROLLED POWER STEERING 1 0
ASSEMBLY
Torque Specifications
29—39 N-m (3.0-4.0 m-kg, 22-29 ft-lb)
29—39 N m
(3.0—4.0 m-kg, 22—29 ft-lb)
29—39 N m
(3.0—4.0 m-kg, 22—29 ft-lb) 29—39 N-m (3.0—4.0 m-kg, 22—29 ft-lb)
15—25 N m (1.5—2.5 m-kg
3.9—4.9 N m (0.4—0.5 m-kg,
39—49 N-m (4.0—5.0 m-kg, 29—36 ft-lb) 78—98 N-m (8.0—10.0 m-kg, 58—72 ft-lb)
34—44 N m 34—44 N-m (3.5—4.5 m-kg, 25—33 ft-lb) (3.5-4.5 m-kg, 25—33 ft-lb) (7.0—ID, 0 m-kg, 51—72 ft-lb)
86U10X-252
1. Install the outer box in the rack housing.
Note
Coat the seals and O-rings with ATF.
86U10X-192
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