1992 MAZDA PROTEGE engine

ENGINE SPEED SENSING POWER STEERING N
TROUBLESHOOTING GUIDE
Adjust or replace
Repair or replace Shimmy (Steering
wheel vibrates
left/right)
N-25

ENGINE SPEED SENSING POWER STEERING
23UONX-03
03UONX-032
AIR BLEEDING
Caution
l Do not start the engine.
l Jack up the front of the vehicle.
1. Check the fluid level. (Refer to page N-27.)
2. Turn the steering wheel fully to the left and right several times
with the engine not running.
3. Recheck the fluid level. If the level has lowered, add fluid.
4. Repeat steps 2 and 3 until the fluid level stabilizes.
5. Start the engine and let it idle.
6. Turn the steering wheel fully to the left and right several
times.
7. Check that the fluid is not foamy and that the fluid level has
not dropped.
8. Add fluid if necessary and repeat steps 6 and 7.
STEERING WHEEL AND COLUMN
Inspection (On-vehicle)
Steering wheel effort
1. With the vehicle on a hard, level surface, put the wheels
in the straight-ahead position.
2. Start the engine and warm the power steering fluid to
50-60°C
(122-14OOF) by turning the steering: wheel fully
left and right several times.
3. With the engine running at idle speed, attach a pull scale
to the outermost point of the steering wheel spoke. Then,
starting with the wheels in the straight-ahead position, check
the steering effort required to turn the steering wheel to the
left and to the right.
4. If the measured effort exceeds specification, check the fol-
lowing: fluid level, air in system, fluid leakage at hose or con-
nections, function of P/S oil pump and gearbox, and tire
pressures.
Steering wheel effort: 29 N (3.0 kg, 6.6 lb) or less 03UONX-033
N-26

ENGINE SPEED SENSING POWER STEERING N
r-
-l
03UONX-034
POWER STEERING FLUID
On-vehicle Inspection
Inspection of fluid level
Caution
l Add only the specified power steering fluid.
1. Verify that the fluid level is between the H and L marks.
2. Add or remove fluid if not within specification.
Inspection of fluid leakage
Start the engine. Turn the steering wheel fully left and right to apply fluid pressure; then check for fluid leakage.
Caution
+ To prevent damage, do not keep the steering wheel in the fully turned position for more than
15 seconds.
Note
l The points where fluid leakage may occur are indicated by the arrows in the figure.
03UONX-035
N-27

N ENGINE SPEED SENSING POWER STEERING
03UONXGI
23UONX-03
23UONX-OZ
THERMOMETER
-Y
23UONX-03
Inspection of fluid pressure
1. Assemble the SST as shown in the figure.
Tightening torque:
39-49 Nern (4.0-5.0 m-kg, 29-36 ft-lb)
2. Disconnect the pressure hose on the oil pump side, and
attach the SST.
Note
l Before disconnecting the hose, make marks at the
connections for proper reinstallation.
3. Bleed the air from the system. (Refer to page N-26.)
4. Open the gauge valve fully. Start the engine and turn the
steering wheel fully left and right to raise the fluid tempera-
ture to 50-60°C (122-14OOP).
5. Close the gauge valve completely. Increase the engine
speed to 1,000-l ,500 rpm and measure the fluid pres-
sure generated by the oil pump. If the pressure is below
specification, replace the oil pump assembly.
Oil pump fluid pressure:
7,356 kPa (75 kg/cm2, 1,067 psi)
Caution
l If the valve Is left closed for more than 15 seconds,
the fluid temperature will increase excessively and
adversely affect the oil pump.
6. Open the gauge valve fully again and increase the engine
speed to l,OOO-1,500 rpm.
7. Turn the steering wheel fully to the left and right and meas-
ure the fluid pressure generated by the gear housing. If the
pressure is below specification, replace the gear housing
assembly.
Gear housing fluid pressure:
7,356 kPa (75 kg/cm2, 1,067 psi)
Caution
l If the steering wheel is kept in the fully turned po-
sition for more than 15 seconds, the fluid tempera-
ture will rise excessively.
N-28

ENGINE SPEED SENSING POWER STEERING N
8. Remove the gauge set. Install and tighten the pressure hose
to the specified torque.
Tightening torque:
16-24 N-m (1.6-2.4 m-kg, 12-17 ft-lb)
9. Bleed the air from the system. (Refer to page N-26.)
23UONX-037
N-29

N ENGINE SPEED SENSING POWER STEERING
STEERING GEAR AND LINKAGE
Removal / Installation
1. Loosen the wheel lug nuts.
2. Jack up the front of the vehicle and support it with safety stands.
3. Remove the wheels.
4. Remove in the order shown in the figure, referring to
Removal Note.
5. Install in the reverse order of removal, referring to Installation Note.
6. After installation, bleed air from the steering system and adjust the toe-in if necessary. (Refer to Section R.)
2.0-5.9 N.m (20-60 cm-kg, 17-52 In-lb) _
(4.3-5.5, 31-42)
31-L46
(3.2-4.7, 23-34;>
16-23
(1.6-2.3, 12-17)
Y
N.m (m-kg, ft-lb)
23UONX-02
Note
l Use a container or rags to collect the power steering fluid when disconnecting the pressure
pipe and return hose.
l Lower the steering brackets and steerlng gear and linkage as an assembly; then separate the
steering gear and linkage.
1. Cotter pin 8. Extension bar/Control rod (MTX)
2. Nut 9. Nut (Steering gear mounting bolt)
3. Tie rod end/Steering knuckle Installation note .,,...*................... page N-14
Removal note . . . . . . . . . . . . . . . . . . . . . . . . . ,. page N- 6 10. Steering gear and linkage
4. Pressure pipe Removal note . . . . . . . . . . . . . . . . . . . . . . . ..a... page N-14
5. Return hose Disassembly / Inspection . . . . . . . . . . . . page N-31
6. Set plate Assembly . . . . . . . . . . . . . . . ..*.................. page N-34 .li;
7. Fixing bolt (intermediate shaft/pinion shaft)
Installation note . . . . . . . . . . . . . . . . . . . . . . . . . . page N-14
N-30

ENGINE SPEED SENSING POWER STEERING N
Disassembly / Inspection
1. Disassemble in the order shown in the figure, referring to Disassembly Note.
2. insoect all Darts and reoair or reolace as necessarv.
N.m (m-kg, ft-lb:
L.
311 rnNX.rf
_” _-..,. -39
1. Oil pipe
Disassembly Note ,., ,......... .., ,., ,.. page N-32
2. Tie rod end
3. Locknut
4. Boot clip
5. Boot wire
6. Boot
7. Tie rod
Disassembly Note . . . . . . . . . . . . . . . . . . . . . . page N-32
Inspection for damage
Inspect operation of ball joint
8. Washer
9. Cover
10. Locknut
Disassembly Note . . . . . . . . . . . . . . . . . . . . . . page N-32
11. Adjusting cover
12. Spring
13. Pressure pad
14. Housing cover
Disassembly Note . . . . . . . . . . . . . . . . . . . . . . page N-32
15. Locknut
16. Bearing
17. Plug
Disassembly Note . . . . . . . . . . . . . . . . . . . . . . page N-32
Inspection . . . . . . . . . . . . . . . . . . . . ..*............ page N-33
18. O-ring 19. Oil seal
Disassembly Note . . . . . . . . . . . . . . . . . . . . . . page N-33
20. Bearing
Disassembly Note . . . . . . . . . . . . . . . . . . . . . . page N-33
21. Pinion shaft assembly
Inspect for damage and wear
22. Seal ring
23. Outer box assembly
Disassembly note ,....,..,.....,........ page N-33
24. O-ring
25. U-gasket
26. Steering rack
Inspection . . . . . . . . . . ..*...........*.......... page N-33
27. Seal ring
28. O-ring
29. Oil seal
Disassembly Note . . . . . . . . . . . . . . . . . . . . . . page N-33
30. Inner guide
Disassembly Note . . . . . . . . . . . . . . . . . . . . . . page N-33
31. Bearing
32. Oil seal
33. Mounting rubber
34. Mounting bracket
35. Gear housing
Inspect for damage and crack
N-31

ENGINE SPEED SENSING POWER STEERING
i
93GONX-02t
93GONX-02 ‘8
93GONX-029
I I
93GONX-030
N-32
Disassembly note
Oil pipe
Caution
l After disconnecting the pipes, use a plug or adhe-
sive type tape to seal each port to prevent the en-
try of foreign materials.
Tie rod
1. Use the SST to remove the tie rod.
Caution
l To avoid scratching the rack, secure the rack in a
vise protected with brass pads or cloth.
Locknut
1, Use the SST to remove the locknut.
Housing cover
1. Use a drill @1.5mm (0.06 in)) to make a recessed area (ap-
prox. 1.5mm (0.06 in)) at the punch-crimped part of the
threaded part.
Caution
l if the drill diameter and/or the depth of the recess
are excessive, the threads will be too loose when
the plug is reused.
Plug
1. Use the SST to remove the plug.