oil MAZDA 626 1987 Workshop Manual

ENGINE SPEED SENSING POWER STEERING 1 0
Spacer and pinion housing side oil seal
1. Apply grease to flat surface of the spacer.
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2. Connect the oil seal to the grease coated surface
of the spacer.
3. Apply ATF to the inside and outside of the spacer
and oil seal.
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4. Set the spacer and oil seal on the SST.
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5. Insert the SST from the tube side.
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1 0 ENGINE SPEED SENSING POWER STEERING
6. Install and tighten the SST nut against the tube.
7. Turn the SST shaft in as far as it will go to push
in the seal and spacer.
8. Remove the SST.
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Rack
1. Apply grease (lithium base, NLGI No.2) to the fric-
tion surface and teeth of the rack.
2. Slide the SST over tne rack and slide it in from the
tube side.
3. Remove the SST.
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Oil seal (Rack)
1. Apply ATF to the oil seal and slide it onto the rack.
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Set the SST on the rack.
Turn the SST as far as it will go, and push the oil
seal into the tube.
Remove the SST.
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ENGINE SPEED SENSING POWER STEERING 1 0
Rack bushing
1. Install the rack bushing assembly in the rack
housing.
Tightening torque:
88—98 N m (9—10 m-kg, 65—72 ft-lb)
Note
The oil seal is pushed to the correct position
in the rack housing by the tightening of the
rack bushing.
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2. Stake the rack housing at two points approx 1.5
mm (0.06 in) from the end with a hammer and
center punch.
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Hermetic inspection
1. Connect the SST to the cylinder housing.
2. Connect a vacuum pump to the SST.
3. Apply 400 mmHg (15.7 inHg) vacuum.
4. Verify that vacuum is held for at least 30 sec. If
not, check the seal and assembly.
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Lower bearing
1. Secure the gear housing in a vise so that the low-
er bearing bore faces upward.
2. Apply ATF to the lower bearing, then install it in
the housing.
3. Press the bearing into the gear housing with the
housing cover. Tighten the cover until the tighten-
ing force suddenly increases.
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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.
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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.
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ENGINE SPEED SENSING POWER STEERING 1 0
3. Tap in a new roll pin.
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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.
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Tie-rod end
Align with the mark made before disassembly, and
then tighten the nut.
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Oil pipe
Secure the mounting bracket in a vise so that the oil
pipe connections face upward.
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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)
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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.
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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.
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Tie-rod ends
Before removing the tie-rod ends, make a mark for
proper installation.
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Oil pipe
Mark the pressure and return pipes and the valve
case for proper installation. Remove the pipes.
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Solenoid valve
Remove the solenoid valve.
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1 0 ELECTRONICALLY-CONTROLLED POWER STEERING
Oil seal
Remove the oil seal with a screwdriver.
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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
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5. Worn outer box bushing
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6. Cracked or damaged gear housing
7. Steering gear oil leakage
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1 0 ELECTRONICALLY-CONTROLLED POWER STEERING
2. Protect the outer box with cloth and tighten it with
a pipe wrench.
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3. Stake between the outer box and the rack hous-
ing with a center punch.
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4. Install the oil seal with a suitable pipe.
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5. Install the pressure pad and spring in the gear
housing.
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