steering MAZDA 626 1987 Repair Manual

1 0 STEERING GEAR AND LINKAGE
INSTALLATION
Install in the reverse order of removal.
Torque Specifications
18—26 Nm (1.8—2.7 m-kg, 13—20 ft-lb)
(3.0—4.5 m-kg, 22—33 ft-lb)
86U10X-055
10—30

4-WHEEL STEERING GEAR AND LINKAGE 1 0
4-WHEEL STEERING GEAR AND LINKAGE
STRUCTURAL VIEW
1. Reserve tank
2. Oil pump
3. Front steering gear assembly
4. Speed sensor
5. Control unit
6. Steering angle transfer shaft
7. Solenoid valve
8. Rear steering gear assembly
9. Steering wheel
10. Steering shaft
11. Relay and timer
86U10X-056
10—31

1 0 4-WHEEL STEERING GEAR AND LINKAGE
86U10X-301
86U10X-302
86U10X-303
4WS PERFORMANCE INSPECTION
1. Steering Angle Transfer Shaft Alignement
(Simple inspection)
(1) Put masking tape on the steering wheel and
column cover.
(2) Drive the vehicle on a straight, flat road for at
least 30 m (18.6 ft) and note the steering wheel
position. Stop and mark the straight-ahead po-
sition on the steering wheel and column cover
tape. Drive the vehicle again and check the
marks.
(3) With the marks between the steering wheel and
column cover aligned, check that the rear
wheels do not turn off center when the engine
is started.
(4) If the rear wheels move, adjust the steering an-
gle transfer shaft.
(Inspection by dial indicator)
(1) Mark between the steering wheel and column
cover as shown above.
(2) Attach a scale on the column cover as shown
in the illustration.
86U10X-304
10-32

4-WHEEL STEERING GEAR AND LINKAGE 1 0
(3) Raise the vehicle on a lift or safety stands.
(4) Set a dial indicator against one rear tire. Set
the pointer to 0.
86U10X-305
(5) With the marks on the steering wheel and
column cover aligned, start the engine and turn
the steering wheel slowly to the right. Using the
scale on the column cover, note the rotation
of the steering wheel at the point where the rear
wheels begin to turn (dial indicator begins to
move).
86U10X-306
(6) Turn the steering wheel left and right a few
times to equalize the hydraulic pressure. Re-
align the marks between the steering wheel
and column cover.
86U10X-307
(7) Reset the dial indicator to 0 and turn the steer-
ing wheel slowly to the left. Using the scale on
column cover, again note the rotation of the
steering wheel at the point where the rear
wheels begin to turn (dial indicator begins to
move).
86U10X-308
10-33

1 0 4-WHEEL STEERING GEAR AND LINKAGE
(Example) ^"in)
-I
8 mm (0.31 in)
1 1111111
- ^Center
10 mm (0.39 in)
86U10X-309
(8) The center position can be determined from
the left/right measurements in (5) and (7) above.
Example:
Right rotation.... 10 mm (0.39 in)
Left rotation....8 mm (0.31 in)
Center = Right 1 mm (0.04 in)
(9) Check that the center is within specification.
Specification
= R 5 mm (0.4 in ) to L 5 mm (0.4 in)
(10) If not correct, adjust the steering angle trans-
fer shaft.
2. Steering Inspection
With the vehicle stopped and the engine running,
check that the rear wheels turn in the opposite
direction when the steering wheel is turned and that
there is no abnormal noise.
86U10X-310
3.4WS Electric System Inspection
Drive the vehicle and check that the 4WS warning
light does not come on at over 40 km/h (25mph).
86U10X-311
10—34

4-WHEEL STEERING GEAR AND LINKAGE 1 0
Front joint Rear joint
Rear bracket
Front bracket
76G10X-033
86U10X-313
ADJUSTMENT OF STEERING ANGLE
TRANSFER SHAFT
If the steering angle transfter shaft is disconnected
from the front or rear steering gear or after adjusting
the wheel alignement, or if the rear steering angle is
not correct, adjust the rear turning angle as described
below.
Warning
Improper installation of the 4WS steering
transfer shaft may affect control of the vehi-
cle and result in the risk of an accident or per-
sonal injury.
1. Raise the vehicle on a lift or safety stands.
2. Remove cover B and joint bolt A.
3. Slide the shaft out of the joint.
4. Remove the plug from the rear steering gear. Sight
through the hole and turn the steering angle input
shaft to align the notch in the input shaft with the
center of hole.
5. Remove the set bolt attached to the rear steering
gear, and install it in the steering gear to set the
input shaft.
Tightening torque:
4.9—7.8 N-m (50—80 cm-kg, 43—69 in-lb)
86U10X-314
Note
After the input shaft is set, manually turn the rear
joint and chack that the shaft does not move.
86U10X-315
10—35

1 0 4-WHEEL STEERING GEAR AND LINKAGE
6. Lower the vehicle.
7. Check and adjust the front and rear wheel align-
ment if necessary. (Refer to Section 13.)
8. Drive the vehicle and mark the steering straight-
ahead position.(Refer to page 10—32.)
86U10B-316
9. Install the shaft and rear joint removed at step 2,
and tighten the bolt to the specified torque.
Tightening torque: 22—30 N-m
(2.2—3.1 m-kg, 191—269 in-lb)
10. Install and tighten a new wire on the joint boot.
86U10X-317
11. Install the set bolt in the rear steering gear.
Tightening torque:
20—28 N-m (2.0—2.9 m-kg, 14—21 ft-lb)
After installing the steering angle transfer
shaft, check the steering angle transfer shaft
alignment. [Refer to page 10—32 (Simple in-
spection).]
86U10X-318
10—36

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 4-WHEEL STEERING GEAR AND LINKAGE
Steering Angle Transfer Shaft
Adjust steering angle transfer shaft
(Refer to 10—35)
1. Nut
2. Boot band
3. Bolt
4. Bolt
Rear Steering Gear
86U10X-064
5. Bolt
6. Bolt
7. Steering angle transfer shaft
86U10X-065
1. Connector 6. Cover
2. Cover 7. Nuts
3. Universal joint and bolts 8. Nuts
4. Boot and boot band 9. Pipes
5. Bolts 10. Bolt
11. Bolt
12. Bolt
13. Bolt
14. Rear steering gear as-
sembly
15. Solenoid valve
10—38

4-WHEEL STEERING GEAR AND LINKAGE 1 0
Torque Specifications
16—23 N-m (1.6—2.3 m-kg, 12-17 ft-lb)
/
18—26N-m (1.8—2.7 m-kg, 13—20 ft-lb)
36—54 N m (3.7—5.5 m-kg, 27—40 ft-lb)
18—26N-m (1.8—2.7 m-kg, 13—20 ft-lb)
36—54 N-m
(3.7—5.5 m-kg,
27—40 ft-lb)
29—44 ftm (3.0—4.5 m-kg, 22—33 ft-lb)
75—93 N-m (7.6-9.5 m-Kg, 55-69 ft-lb)
78—117 N-m (8.0—11.9 m-kg, 58—86 ft-lb)
31—46 N-m (3.2—4.7 m-kg, 23—34 ft-lb)
39—59 N-m
(4—6 m-kg,
29—43 ft-lb)
6.9—9.8 N m (0.7—1.0 m-kg, 61—87 In-lb)
6.9—9.8 N m (0.7—1.0 m-kg, 61—87 In-lb)
\ 22—30 N-m 22—30 N m (2.2—3.1 m-kg, 6.9—9.8 N-m (2.2—3.1 m-kg, 16—22 ft-lb) (0.7—1.0 m-kg, 22—30 N m 16—22 ft-lb) 61—87 in-lb) (2.2—3.1 m-kg, 16—22 ft-lb)
43—54 N m
(4.4—5.5 m-kg, 32—40 ft-lb)
20—28 N-m (2.0—2.9 m-kg, 14—21 ft-lb)
86U10X-066
10-39