1987 MAZDA 626 lock

7B INSPECTION AND REPAIR
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn valves
2. Damaged oil passage
3. Cracked or damaged valve body
4. Operation of each valve
5. Weakened spring
Spring

Spring name Outer dia.
mm
(in) Free length
mm
(in) Wire dia.
mm (in)
Spring color
Pressure regulator spring 11.5 (0.453) 26.5 (1.043) 1.0 (0.039) Maroon
Lock-up control spring 5.0 (0.197) 35.2 (1.386) 0.6 (0.024) Purple

86U07B-295
Assembly
1. Install the lock-up control spring, lock-up control
valve, stopper plug, and stopper pin.
86U07B-296
Install the pressure regulator valve, pressure regu-
lator spring, pressure regulator spring seat, pres-
sure regulator plug, pressure regulator plug sleeve,
pressure regulator backup plug, stopper plug, and
stopper pin.
Note
Install the stopper plug larger end first.
86U07B-297
3. Install the manual valve.
86U07B-298
7B-148

7B INSPECTION AND REPAIR
(2) Tighten the rear control body.
Tightening torque:
6—8 N-m (66—80 cm-kg, 57—69 in-lb)
86U07B-319
Install the 3-4 solenoid valve and lock-up solenoid
valve along with new O-rings and oil strainers.
Tightening torque:
6—8 N-m (66—80 cm-kg, 57—69 in-lb)
76G07B-161
18. Install the
1
-2 solenoid valve and 2-3 solenoid valve
along with new O-rings and oil strainers.
Tightening torque:
6—8 N-m (66—80 cm-kg, 57—69 in-lb)
76G07B-162
7B-154

INSPECTION AND REPAIR 7B
CONTROL VALVE BODY (G4A-HL)
Precaution
(1) Pay close attention when handling the control valve because it consists df the most precise and
delicate parts of the transaxle.
(2) Neatly arrange the removed parts in order to avoid mixing up similar parts.
(3) Disassemble the control valve assembly and thoroughly clean it when the clutch and/or brake bands
are burned, and/or when the automatic transaxle fluid is degenerated.
Components I
Front and premain control body
6—8 Nm ® (66—80 cm-kg, 57—69 In-lb)
1. Lock-up solenoid valve
2. Front control body
3. Front/premain front gasket
4. Premain separator
5. Front/premain rear gasket
6. Premain control body
7. Premain/main front gasket
8. Main separator
76G07B-163
7B—155

7B INSPECTION AND REPAIR
Components II
Main and rear control body
1. Premain/main rear gasket
2. Main control body
3. Main/rear front gasket
4. Rear separator
5. Main/rear rear gasket
6. Rear control body
83U07B-274
Disassembly of Control Valve Body
1. Remove the lock-up solenoid valve.
2. Remove the O-ring and oil strainer.
83U07B-275
7B-156

7B INSPECTION AND REPAIR
Rear Control Body
Disassembly
Disassemble in the sequence shown in the figure.
83U07B-303
1. Manual valve 11. Stopper plug
2. Stopper pin 12. Pressure regulator backup plug
3. Stopper plug 13. Pressure regulator plug sleeve
4. Lock-up control valve 14. Pressure regulator plug
5. Lock-up control spring 15. Pressure regulator spring seat
6. Stopper pin 16. Pressure regulator spring
7. Stopper plug 17. Pressure regulator valve
8. OD lock-up valve 18. Stopper pin
9. OD lock-up spring 19. Stopper plug
10. Stopper pin 20. Lock-up support valve
21. Lock-up support spring
7B-168

INSPECTION AND REPAIR 7B
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn valves
2. Damaged oil passage
3. Cracked or damaged valve body
4. Operation of each valve
5. Weakened spring
Spring

Spring name Outer dia.
mm (in)
Free length
mm
(in)
30.7 (1.209)
46
2
(1 819)
52
3
(2.059)
Wire dia.
mm (in)
Spring color
Blue
Yellow
Red"
Pressure regulator spring 9.5 (0.374)
Free length
mm
(in)
30.7 (1.209)
46
2
(1 819)
52
3
(2.059)
0.7 (0 028)
0
8
(0.031)
1.0 (0.039)
0.8 (0.031)
Spring color
Blue
Yellow
Red"
Lock-up control spring 7,3 (0 287)
Free length
mm
(in)
30.7 (1.209)
46
2
(1 819)
52
3
(2.059)
0.7 (0 028)
0
8
(0.031)
1.0 (0.039)
0.8 (0.031)
Spring color
Blue
Yellow
Red"
Lock-up support spring 7.0 (0.276)
Free length
mm
(in)
30.7 (1.209)
46
2
(1 819)
52
3
(2.059)
0.7 (0 028)
0
8
(0.031)
1.0 (0.039)
0.8 (0.031)
Spring color
Blue
Yellow
Red" OD lock-up spring 7.1 (0.280) 66.5 (2.618)
0.7 (0 028)
0
8
(0.031)
1.0 (0.039)
0.8 (0.031)
Spring color
Blue
Yellow
Red"

76G07B-166
Assembly
1. Install the lock-up support spring, lock-up support
valve, stopper plug, and stopper pin.
Note
Install the stopper plug large end first.
83U07B-305
2. Install the pressure regulator valve, pressure regu-
lator spring, pressure regulator spring seat, pres-
sure regulator plug, pressure regulator plug sleeve,
pressure regulator backup plug, stopper plug, and
stopper pin.
Note
Install the stopper plug large end first.
83U07B-306
7B—169

7B INSPECTION AND REPAIR
83U07B-307
3. Install the OD lock-up spring, OD lock-up valve,
stopper plug, and stopper pin.
Note
Install the stopper plug large end first.
4. Install the lock-up control spring, lock-up control
valve, stopper plug, and stopper pin.
83U07B-308
3. Install the manual valve.
83U07B-309
7B-170

7B INSPECTION AND REPAIR
(2) Tighten the rear control body.
Tightening torque:
6—8 N-m (66—80 cm-kg, 57—69 in-lb)
17. Install the lock-up solenoid valve along with new
O-ring and oil strainer.
Tightening torque:
6—8 N-m (66—80 cm-kg, 57—69 in-lb)
7B—176
83U07B-330
83U07B-331