1987 MAZDA 626 tow

7B INSPECTION AND REPAIR
86U07B-206
86U07B-207
86U07B-208
Coasting clutch
1. Install the coasting clutch drum.
(1) Apply ATF to inner and outer faces of the seal,
and install it onto the coasting clutch drum.
(2) Face the outer seal lip toward the inside by
gently rolling it down around the circumference
for easier installation into the drum.
(3) Install the coasting clutch drum the correct po-
sition in the reverse and forward drum.
(4) Push evenly around the circumference, being
careful not to damage the outer seal.
2. Install the coasting piston
(1) Apply ATF to inner and outer faces of the seals
and install them onto the coasting piston.
(2) Face the outer seal lip toward the inside by
gently rolling it down around the circumference
for easier installation into the drum.
(3) Install the coasting piston by pushing evenly
around the circumference, being careful not to
damage the outer seal.
B6U07B-209
7B-118

INSPECTION AND REPAIR 7B
86U07B-224
86U07B-225
86U07B-226
Replacement of one-way clutch
1. Remove the one-way clutch inner race.
2. Remove the one-way clutch.
3. Remove the thrust bearing.
4. Inspect the one-way clutch inner and outer race,
and replace if necessary.
5. Apply petroleum jelly to the thrust bearing to se-
cure it; then install it to the one-way clutch inner
race.
Thrust bearing outer diameter:
62.1 mm (2.44 in)
6. Install the one-way clutch into the one-way clutch
outer race.
Caution
Check that the spring cage of the one-way
clutch faces toward the outer race.
86U07B-227
7B-123

7B ASSEMBLY
(4) Install the detent ball, spring, washer and plug;
then tighten the plug.
Tightening torque:
12—18
N
m (1.2—1.8 m-kg, 8.7—13 ft-lb)
86U07B-386
Install the low and reverse brake piston.
(1) Apply ATF to the inner and outer seals, and
install them to the low and reverse brake piston.
(2) Face the outer seal lip toward the inside by
gently rolling it down around the circumference
for easier installation into the case.
(3) Install the low and reverse brake piston by
pushing evenly around the circumference, be-
ing careful not to damage the outer seal.
86U07B-388
(4) Install the spring and retainer assembly.
86U07B-389
7B-200

7C REMOVAL
27. Remove engine mount No. 2.
76G07C-069
76G07C-070
28. Remove the crossmember and the left side lower
arm as an assembly.
29. Lean the engine toward the transaxle by loosen-
ing the engine support hook bolt.
30. Support the transaxle with a jack.
31. Remove the transaxle mounting bolts.
32. Remove the transaxle.
76G07C-071
7C-34

ASSEMBLY 7C
4. Use the following procedure to adjust the front
clutch drum end play and select the adjust shim.
(1) Set the oil pump gasket onto the transaxle
case.
(2) Place the adjust shim onto the front clutch
drum.
(3) Install the oil pump and bearing race into the
transaxle; then tighten the oil pump mounting
bolts to the specified torque.
Tightening torque:
15—22 N m (1.5—2.2 m-kg, 11—16 ft-lb)
76G07C-300
76G07C-301
63U07B-220
(4) Position the transaxle with the oil pump facing
down ward position.
(5) While turning the connecting shell 2 complete
turns, push the front clutch drum toward the
oil pump with a screwdriver to seat the front
clutch drum.
(6) Measure the clearance between the front clutch
drum and the connecting shell. This clearance
is the front clutch drum end play.
End play: 0.5—0.8 mm (0.020—0.031 in)
(7) If the end play is not within specification, ad-
just it by selecting the proper adjust shim.
Shim sizes mm (in)

1.3 (0.051) 1.5 (0.059) 1.7 (0.067)
2.3 (0.091) 1.9 (0.075) 2.1 (0.083)
1.7 (0.067)
2.3 (0.091)
2.5 (0.098) 2.7 (0.106)

76G07C-302
7C-113

TROUBLESHOOTING GUIDE 9
TROUBLESHOOTING GUIDE
Problem Possible Cause Remedy Page
Faulty operation of
driveshaft
Broken ball joint
Broken tri-pod joint
Worn or seized joint
Replace
Replace
Replace
9—31
9—35
9—31, 35
Abnormal noise from driveshaft Insufficient grease in joint or spline Excessive backlash on spline Worn joint
Add or replace
Replace
Replace
9—33, 36 9—31, 35 9-31, 35
Steering wheel pulls. (Steering wheel pulls toward either right or left side)
Bent steering linkage
Fatigued coil spring
Lower arm bushing worn or damaged Bent knuckle Bent lower arm or loose mounting Incorrect toe-in adjustment Improper tire air pressure Unevenly worn tires (left and right tires) Brake dragging
Refer to Section 10 Refer to Section 13 Refer to Section 13 Replace Refer to Section 13 Refer to Section 13 Refer to Section 12 Refer to Section 12 Refer to Section 11
9-11
Unstable handling Bent steering linkage
Joint in steering system worn or damaged
Incorrect steering pinion preload adjustment Fatigued coil spring
Faulty shock absorber(s) Lower arm bushing worn or damaged Incorrect toe-in adjustment (front or rear) Improper tire air pressure Wheel(s) bent or unbalanced
Refer to Section 10 Refer to Section 10 Refer to Section 10 Refer to Section 13 Refer to Section 13 Refer to Section 13 Refer to Section 13 Refer to Section 12 Refer to Section 12
—
Excessive steering wheel play Faulty front wheel bearing Incorrect steering pinion preload adjustment Rack and pinion worn Joint in steering system worn or damaged Lower arm bushing worn or damaged
Adjust Refer to Section 10 Refer to Section 10 Refer to Section 10 Refer to Section 13
9-11
Tires excessively worn or worn un-evenly
Incorrect toe-in adjustment Improper tire air pressure Unbalanced wheel(s)
Refer to Section 13 Refer to Section 12 Refer to Section 12 —
Abnormal noise
from axle
Faulty wheel bearing Replace 9-11,18,23
86U09X-006
9—7

ENGINE SPEED SENSING POWER STEERING 1 0
3. Tap in a new roll pin.
86U10X-175
i V
vlM^lPl'' \f ) j//
/f
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.
86U10X-176
Tie-rod end
Align with the mark made before disassembly, and
then tighten the nut.
86U10X-177
Oil pipe
Secure the mounting bracket in a vise so that the oil
pipe connections face upward.
86U10X-178
10-73

POWER BRAKE UNIT 1 1
76G11X-034
INSPECTION OF CHECK VALVE
Note (MTX)
The check valve is pressed into the vacuum
hose. There is an arrow on the hose surface
to indicate direction of installation.
Inspection
1. Disconnect the vacuum hose from the engine.
2. Apply suction and pressure to the hose from the
engine side. Check that air flows only toward the
engine.
If the air passes in both directions or not at all, re-
place the check valve (along with the hose).
REMOVAL
Remove in the sequence shown in the figure, referring to removal note for specially marked parts.
1. Fluid level sensor connector
2. Vacuum switch coupler
(RF, RF-CX)
3. Brake pipe
4. Master cylinder
5. Clutch pipe holder
6. Vacuum hose and check
valve
7. Clevis pin
8. Steering shaft
76G11X-069
9. Power brake unit
10. Gasket
11. Locknut
12. Operating lever
11-29