engine MAZDA 626 1987 Workshop Manual

4-WHEEL STEERING GEAR AND LINKAGE 1 0
REMOVAL AND INSTALLATION
1. Jack up the vehicle and support it with safety stands.
2. Remove in the sequence shown in the figure, referring to the removal note for specially marked parts.
3. Install in the reverse order of removal, referring to installation note for specially marked parts.
4. Tighten all nuts and bolts to the specified torque, referring to page 10—39.
Note
The power steering fluid will leak out when the return hose or the pressure hose is discon-
nected. Prepare a suitable container for it to drain into.
Front Steering Gear
76G10X-034
9. Engine mount
10. Bolts and nut
11. Bolt
12. Bolt and mounting
13. Bolts and mounting
14. Stabilizer
15. Bolt
16. Front steering gear assembly
1. Pipes
2. Bolt
3. Exhaust pipe
4. Under cover
5. Shaft (Refer to next page)
6. Nuts retainer and bushing
7. Bolt, retainer and bushing
8. Nuts
10—37

1 0 ENGINE SPEED SENSING POWER STEERING
ENGINE SPEED SENSING POWER STEERING
DISASSEMBLY
Disassemble in the sequence shown in the figure, referring to the disassembly note for specially marked
parts.
Caution
a) In order to prevent the entrance of dirt, all disassembly and assembly should be done
in a clean area.
b) Before disassembly, plug the openings of all pipe installation fittings, then thoroughly
clean the steering gear and linkage.
86U10X-121
1. Oil pressure switch
2. Oil pipe
3. Tie-rod end
4. Tie-rod end locknut
5. Spring clip
6. Boot wire
7. Boot
8. Tie-rod
9. Lock pin
10. Adjust cover locknut
11. Adjust cover
12. Spring
13. Pressure pad
14. Snap ring
15. Housing cover
16. Lower bearing locknut
17. Pinion shaft and control
valve assembly
18. Oil seal
19. Upper bearing
20. Rack bushing assembly
21. Rack
22. Oil seal
23. Spacer
24. Oil seal
25. Lower bearing
26. Oil seal
27. Needle bearing
28. Seal ring
29. O-ring
30. Mounting bracket
31. Mounting rubber mount
10—58

ENGINE SPEED SENSING POWER STEERING 1 0
Disassembly Note
Steering gear and linkage
Secure the gear and linkage in a vise.
Caution
Insert protective material (such as copper
plates) in the jaws of the vise.
86U10X-122
Tie-rod ends
Before removing the tie-rod ends, make a mark for
proper installation.
86U10X-123
Tie-rod
1. Remove the tie-rod from rack.
2. Remove the roll pin with a pin-punch and hammer.
86U10X-124
Adjust cover
1. Remove the locknut from the adjust cover.
2. Remove the adjust cover with the SST.
3. Remove the spring and pressure pad.
86U10X-125
10-59

1 0 ENGINE SPEED SENSING POWER STEERING
Housing cover
1. Cut away the staked areas with a drill.
2. Remove the housing cover.
86U10X-126
Pinion shaft
1. Remove the locknut.
2. Set the gear housing assembly on a press and re-
move the pinion shaft assembly as shown in the
figure.
86U10X-127
Rack bushing
1. Cut away the staked areas with a drill.
2. Remove the rack bushing.
86U10X-128
Rack and oil seal at tube side
1. Slide the SST over the rack from the gear hous-
ing side.
Note
If the rack is removed without using the SST,
there is the possibility that the rack housing
may be damaged by the rack teeth.
86U10X-129
10—60

ENGINE SPEED SENSING POWER STEERING 1 0
86U10X-130
86U10X-131
86U10X-132
2. Install the SST to the threaded part of the rack at
the tube side.
3. Remove the oil seal at the tube side which pulling
out the rack.
Spacer and oil seal at housing side
1. Insert the SST from the pinion housing side so that
it contacts the spacer.
2. Set the SST against the SST inserted in step 1.
3. Secure the gear housing in a vise.
4. Drive the spacer and oil seal out of the housing.
Lower bearing
Drive the lower bearing out of the housing with the
SST
86U10X-133
10-61

1 0 ENGINE SPEED SENSING POWER STEERING
Oil seal and needle bearing
1. Insert the SST so that it contacts the needle
bearing.
2. Drive the oil seal and needle bearing out with the
SST bar.
86U10X-134
^aFm / y^s.
INSPECTION
Check the following and replace any faulty parts.
Pinion shaft assembly
1. Pinion shaft teeth wear or damage
2. Control valve damage, clogging, and wear
86U10X-135
Rack bushing
Wear or damage
86U10X-136
Bearing
Wear, damage, and operation
86U10X-137
10—62

ENGINE SPEED SENSING POWER STEERING 1 0
ccr
Oil pipe
Clogging or damage
86U10X-138
Tie-rod and tie-rod end
1. Tie-rod damage
2. Tie-rod ball joint damage and operation
3. Tie-rod end damage and operation
86U10X-139
Pressure pad and spring
1. Pressure pad damage
2. Spring damage
86U10X-140
I
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Rack
1. Rack cracking, damage, or wear of teeth
2. Seal ring holder wear or damage
3. Rack piston side corrosion
86U10X-141
10—63

1 0 ENGINE SPEED SENSING POWER STEERING
Gear housing and boots
1. Gear housing cracking or damage
2. Boot cracking or tearing
86U10X-142
ASSEMBLY
Torque Specifications
as
49—59 N m (5.0—6.0 m-kg, 36—43 ft-lb)
88—98 N m ^ (9.0—10.0 m-kg, 65—72 ft-lb)
31—36 N-m (3.2—3.7 m-kg, 23—27 ft-lb) I j 123-143 N-m / (12.5—14.5 m-kg, / 91-105 ft-lb)
69—98 Nm (7.0—10.0 m-kg, 51—72 ft-lb) 44—54 N-m (4.5—5.5 m-kg, 33—40 ft-lb)
34-44 N-m (3.5—4.5 m-kg, 25—33 ft-lb)
86U10X-251
10-64

ENGINE SPEED SENSING POWER STEERING 1 0
Mounting bracket and rubber
1. Install the mounting rubber.
2. Tap the mounting bracket on with a plastic
hammer.
86U10X-143
O-ring and seal ring
1. Apply AFT to the O-ring and seal ring.
2. Install the O-ring in the ring groove of the rack.
3. Install the seal ring in the groove of the rack.
Note
Be careful not to cut or otherwise damage the
edge of the seal ring.
4. Compress the seal ring by hand to fit it to the
groove.
86U10X-144
Needle bearing
1. Apply grease to the end of the SST.
2. Apply ATF to the needle bearing.
3. Set the needle bearing on the SST.
Note
When installing the needle bearing to the SST,
install the embossed side first.
86U10X-145
4. Insert the needle bearing and the SST into the
housing.
86U10X-146
10—65

1 0 ENGINE SPEED SENSING POWER STEERING
5. Set the housing on a press and press in the
bearing.
86U10X-147
Oil seal
1. Apply grease to the end of the SST.
2. Apply ATF to the oil seal.
3. Set the oil seal on the SST.
86U10X-148
4. Insert the oil seal and the SST into the housing.
86U10X-149
Oii seal
Needle bearing
5. Set the housing on a press and press in the seal.
86U10X-150
10-66