wheel torque MAZDA 626 1987 Owner's Manual

9 REAR AXLE
86U09X-027
69G09X-012
76G09X-003
REAR AXLE
ON-VEHICLE MAINTENANCE
Wheel Bearing Play
1.Jack up the vehicle and support it with safety
stands.
2. Check that there is no abnormal noise and that the
tire rotates smoothly when rotated by hand.
3. Remove the wheel.
4. Remove the caliper assembly and suspend it us-
ing a rope.
5. Position a dial indicator against the hub cap, then
push and pull the front wheel hub or brake drum
by hand in the axial direction and measure the end
play of the wheel bearing.
If the end play exceeds specification, replace the
wheel bearing.
End play: 0.2 mm (0.0079 in) max.
6. Install the caliper assembly. (Disc)
Tightening torque: 45—67 N-m
(4.6—6.8 m-kg, 33—49 ft-lb)
7. Install the wheel.
Tightening torque: 88—118 N-m
(9.0—12.0 m-kg, 65—87 ft-lb)
86U09X-029
9—16

9 DRIVESHAFT
Front wheel hub
After installation, pull the front wheel hub outward and
check that the driveshaft does not come out.
86U09X-072
Stabilizer
Lock the nut with 20.1 mm (0.79 in) of the threads
exposed.
Tightening torque: 16—23 N-m
(1.6—2.3 m-kg, 12—17 ft-lb)
76G09X-004
9—38

1 0 ON-VEHICLE MAINTENANCE
86U10X-010
ON-VEHICLE MAINTENANCE
STEERING WHEEL PLAY
With the wheels in the straight-ahead position, gent-
ly turn the steering wheel to the left and right and
check that the play is within specification.
Play: 0—30 mm (0—1.18 in)
Note
If play exceeds specification, either the steer-
ing joints are worn or backlash of the steer-
ing gear is excessive.
LOOSENESS OR PLAY OF STEERING WHEEL
Move the steering wheel in the directions ©, ©, and
© to check for column bearing wear, steering-shaft
joint play, steering wheel looseness, and column
looseness.
86U10X-011
86U10X-012
STEERING WHEEL EFFORT
Manual Steering
1. Jack up the vehicle. Move the steering wheel to
put the wheels in the straight-ahead position.
2. Measure the steering wheel effort by connecting
a pull scale to the outer circumference of the steer-
ing wheel.
Steering wheel effort:
5—25 N (0.5—2.5 kg, 1—5.5 lb)
[during one turn of the steering wheel]
Note
Measure after turning the steering wheel to
the left and right at least 5 times.
3. If the measured value exceeds specification, check
the following: rotation-starting torque of pinion, ro-
tation torque of each ball-joint, and joints.
86U10X-013
10—10

1 0 INSPECTION AND ADJUSTMENT
86U10X023
2WS
To oil pump
Si£r To gear housing
86U10X-024
86U10X-025
Thermometer [50—60°C (122—140°C)]
ii ^
Gauge
Close valve
completely
POWER STEERING PRESSURE
1. Disconnect the high-pressure hose of the gear
housing side, and attach the SST.
Tightening torque:
39—49 N-m (4.0—5.0 m-kg, 29—36 ft-lb)
2. Bleed air from the system.
3. Open the gauge valve fully, then start the engine
and turn the steering wheel fully left and right to
raise the fluid temperature to 50—60°C
(122—140°F)
4. To measure the fluid pressure generated by the
oil pump, close the gauge valve completely and
increase the engine speed to 1,000—1,500 rpm.
If the fluid pressure is low, replace the oil pump
assembly.
Warning
If the valve is left closed for more than 15 sec-
onds, the fluid temperature will increase ex-
cessively and adversely affect the oil pump.
Oil pump fluid pressure
2WS
7,355—7,846 kPa
(75—80 kg/cm2, 1,066—1,138 psi)
4WS
Front 8,093—8,829 kPa
(82.5—90.0 kg/cm2, 1,173—1,280 psi)
Rear 7,112—7,848 kPa
(72.5—80.0 kg/cm2, 1,031—1,138 psi)
To measure the fluid pressure generated at the
gear housing, first open the gauge valve complete-
ly, increase the engine speed to 1,000—1,500
rpm, and then turn the steering wheel fully to the
left and right.
Warning
If the steering wheel is kept in the fully turned
position for more than 15 seconds, the fluid
temperature will rise excessively.
80U10X-026
10—16

INSPECTION AND ADJUSTMENT 1 0
Thermometer [50—60°C (122—140°C)]
Gauge
(Turn steering wheel
completely
left/right)
Valve fully open
76G10X-032
Gear housing fluid pressure
2WS
7,355—7,846 kPa
(75—80 kg/cm2, 1,066—1,138 psi)
4WS
Front 8,093—8,829 kPa
(82.5—90.0 kg/cm2, 1,173—1,280 psi)
Rear More than 2,943 kPa
(More than 30 kg/cm2, more than 427 psi)
If the fluid pressure is low, repair or replace the gear
box.
6. Remove the gauge set, then tighten the high-
pressure hose to the specified torque.
Tightening torque:
31—36 Nm (3.2—3.7 m-kg, 23—27 ft-lb)
7. Bleed the air from the system. (Refer to page
10-15.)
10—17

1 0 TIE-ROD END BOOT
TIE-ROD END BOOT
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 the installation note for specially marked parts.
4. Tighten all nuts and bolts to the specified torque, referring to the figure.
Front
69—9S N m (7.0—10.0 m-kg, 51—72 ft-lb}
29—44 N-m (3.0—4.5 m-kg, 22—33 ft-lb)
88—118 N-m (9.0—12.0 m-kg, 65—87 ft-lb)
1. Lug nuts
2. Wheel
3. Tie-rod end
4. Nut
5. Boot
86U10X-028
Rear (4WS)
69—98 N-m (7.0—10.0 m-kg, 51—72 ft-lb)
29—44 N m (3.0—4.5 m-kg, 22-33 ft-lb)
88—118 N-m (9.0—12.0 m-kg, S5—87 ft-lb)
86U10X-029
1. Lug nuts
2. Wheel
3. Tie-rod end
4. Nut
5. Boot
10—18

STEERING WHEEL AND COLUMN 1 0
INSTALLATION
Install in the reverse order of removal, referring to the installation note for specially marked parts.
Torque specifications
39—49
N m
(4.0—5.0 m-kg, 29—36 ft-lb)
86U10X-049
1. Combination switch
10-27

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