MAZDA 626 1987 Workshop Manual

INSPECTION AND REPAIR 7B
5. Install the snap ring.
86U07B-232
86U07B-233
6. Check that when the small sun gear is held, the
one-way clutch outer race turns smoothly and only
clockwise.
7. Apply petroleum jelly to the thrust bearing to se-
cure it; then install it to the sun gear drum.
Thrust bearing outer diameter:
72.0 mm (2.83 in)
86U07B-234
7B—125

7B INSPECTION AND REPAIR
ONE-WAY CLUTCH AND CARRIER HUB ASSEMBLY
Disassembly
Disassemble in the sequence shown in the figure.
1. One-way clutch
2. Bearing races
3. Snap ring
4. Carrier hub as-
sembly
5. Inner race (Low
and reverse hub)
86U07B-235
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn gear and operation
2. Clearance between pinion washer and planetary
carrier
Clearance:
0.2—0.7 mm (0.008—0.028 in)
86U07B-236
3. Damaged or worn inner race
4. Broken or worn snap ring
5. Damaged or worn bearing race
86U07B-237
7B-126

INSPECTION AND REPAIR 7B
One-way clutch 6. Damaged or worn one-way clutch and operation
7. Detached roller
Note
Assemble the one-way clutch and the inner
race, then confirm that the one-way clutch ro-
tates only clockwise and smoothly.
86U07B-238
Assembly
1. Assemble the carrier hub assembly to the inner
race.
86U07B-239
2. Install th snap ring.
86U07B-240
3. Apply petroleum jelly to the bearing races to se-
cure them; then install them to both sides of the
one-way clutch and carrier hub assembly.
Bearing race outer diameter
Sun gear drum side: 72.0 mm (2.83 in)
3-4 clutch side: 57.0 mm (2.21 in)
Note
Install the tabs of the bearing race into the
alignment holes.
86U07B-241
7B—127

7B INSPECTION AND REPAIR
3-4 CLUTCH
Disassembly
Disassemble in the sequence shown in the figure referring to the disassembly note for the specially
marked part.
1. Thrust bearings
2. Snap ring
3. Retaining plate
4. Drive and driven
plates
5. Dished plate
(G4A-HL)
6. Snap ring
7. Spring and re-
tainer assembly
8. 3-4 clutch piston
9. Outer seal
10. Inner seal
11.3-4 clutch drum
76G07B-133
Disassembly note
3-4 clutch piston
1. Install the SST to the 3-4 clutch as shown.
2. Compress the spring and retainer assembly.
3. Remove the snap ring.
4. Remove the SST then remove the spring and re-
tainer assembly.
86U07B-243
5. Remove the 3-4 clutch piston with the SST and
compressed air.
86U07B-244
7B—128

INSPECTION AND REPAIR 7B
86U07B-245
SB T
g. SH -i
1
Inspection
Check the following and repair or replace any faulty
parts.
1. Drive and driven plates for damage or wear
Drive plate thickness
Standard: 1.6 mm (0.063 in)
Minimum: 1.4 mm (0.055 in)
2. Clutch piston for damage or cracks
3. Clutch drum for damage or deformation
4. Seal contact areas for damage
5. Check ball for leaking or sticking
6. Spring and retainer assembly for separation or
deformation
7. Broken or worn snap ring
8. Broken or weakened spring
Free length of spring:
33.2 mm (1.307 in)
86U07B-246
Assembly
1. Install the 3-4 clutch piston.
(1) Apply ATF to the inner and outer seals, and
install them onto the 3-4 clutch piston.
(2) Install the piston by pushing evenly around the
circumference, being careful not to damage the
seal rings.
86U07B-247
2. Install the spring and retainer assembly.
86U07B-248
7B—129

7B INSPECTION AND REPAIR
3. Install the SST to the 3-4 clutch as shown.
4. Compress the spring and retainer assembly.
5. Install the snap ring.
6. Remove the SST.
86U07B-249
G4A-EL G4A-HL
76G07B-134
76G07B-135
7. Install the dished plate the dished side up ward
(G4A-HL).
8. Install the drive and driven plates.
Note
Installation order:
G4A-EL
Driven-Drive-Driven-Drive-Driven-Drive-
Driven-Drive-Driven-Drive
G4A-HL
Driven-Drive-Driven-Drive-Driven-Drive-
Driven-Drive
9. Install the retaining plate with the step facing
upward.
10. Install the snap ring.
11. Check the 3-4 clutch clearance.
(1) Measure the clearance between the snap ring
and the retaining plate of the 3-4 clutch.
(2) If the clearance is not within specification, ad-
just it by selecting a proper retaining plate.
3-4 clutch clearance:
1.3—1.5 mm (0.051—0.059 in)
Retaining plate sizes
G4A-EL
mm (in)
3.8 (0.150) 4.0 (0.157) 4.2 (0.165)
4.4 (0.173) 4.6 (0.181) 4.8 (0.189)
G4A-HL
4.8 (0.189) 5.0 (0.197) 5.2 (0.205)
5.4 (0.213) 5.6 (0.220)
12. Check clutch operation as follows:
(1) Install the SST as shown, and check clutch
operation by applying compressed air.
Air pressure:
392 kPa (4.0 kg/cm2, 57 psi)
76G07B-136
7B-130

INSPECTION AND REPAIR 7B
(2) Pour ATF into the clutch drum so that the 3-4
clutch piston is fully submerged.
(3) Check that no bubbles come from the 3-4
clutch piston seal while applying compressed
air.
Caution
The compressed air must be under 392 kPa
(4.0 kg/cm2, 57 psi) and not applied for over
3 seconds.
86U07B-253
13. Apply petroleum jelly to the thrust bearings and se-
cure them to both sides of the 3-4 clutch drum.
Thrust bearing outer diameter
Carrier hub side: 56.1 mm (2.21 in)
Output shell side: 72.1 mm (2.84 in)
76G07B-137
7B—131

7B INSPECTION AND REPAIR
2-3 ACCUMULATOR
Disassembly
Disassemble in the sequence shown in the figure.
1. Snap ring
2. Stopper plug
3. O-ring
4. 2-3 accumulator
spring
5. 2-3 accumulator
piston
6. Large seal ring
7. Small sea ring
86U07B-255
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn piston
2. Damaged or worn stopper plug
3. Broken or weakened spring
Free length of spring:
G4A-EL 83.3 mm (3.280 in)
G4A-HL 76.0 mm (2.992 in)
76G07B-138
Assembly
1. Install the 2-3 accumulator.
(1) Apply ATF to large and small seal rings; then
install them to the accumulator piston.
(2) Insert the 2-3 accumulator.
86U07B-257
7B—132

INSPECTION AND REPAIR 7B
2. Install the spring to the piston.
3. Install the stopper plug.
(1) Apply ATF to O-ring, and install it onto the stop-
per plug.
(2) Install the stopper plug.
86U07B-258
4. Install the snap ring while holding in the stopper
plug.
86U07B-259
GOVERNOR ASSEMBLY (G4A-HL)
Disassembly
Disassemble in the sequence shown in the figure
referring to the disassembly note for the specially
marked part.
1. Roll pin
2. Governor driven gear
3. Governor valve
4. Governor carrier and sleeve
76G07B-139
Disassembly note
Roll pin
1. Secure the governor assembly in a vise.
Note
Use the protective plates to prevent damage
to the governor assembly.
2. Remove the roll pin from the governor assembly.
83U07B-266
7B-133

7B INSPECTION AND REPAIR
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn governor gear
2. Damaged or worn governor valve
3. Cracked or damaged governor carrier and sleeve
83U07B-267
Assembly
1. Insert the governor valve to the governor carrier
and sleeve.
2. Install the governor driven gear.
3. Install the roll pin.
83U07B-268
86U07B-260
LOW AND REVERSE BRAKE
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn drive and driven plates
Drive plate thickness
Standard: 1.6 mm (0.063 in)
Minimum: 1.4 mm (0.055 in)
2. Broken or worn snap ring
3. Deformed or detached spring and retainer as-
sembly
4. Broken or weakened spring
Free length of spring:
20.5 mm (0.807 in)
5. Damaged or worn piston
6. Damaged seal contact area of transaxle case
7B—134 expert22 fl/m http://rutracker.org