1987 MAZDA 626 Workshop Manual

CD 8 o
^ l>0
Line pressure
Operating line pressure
Operating low reducing pressure
Throttle backup pressure
Throttle pressure
Governor pressure
Torque converter pressure
n Lock-up control valve
jifllL
Governor valve 1-2 shift control valve
Z> >
z o m
to H
O m >
33
< o
JJ >
o
o
JJ o
o >

Apply side Line pressure
Operating line pressure
(1) Low reducing pressure
(2) Throttle backup pressure
Throttle pressure
Throttle modulated pressure
Governor pressure
Torque converter pressure
Lock-up control valve
McHi '
Governor valve 1-2 shift control valve
3J >
Z o m
ro
a m >
30
CD
X -< o 73 >
C n
O
O
33 O
O >

7C
AUTOMATIC TRANSAXLE
(3-Speed)
OUTLINE 7C— 2
SPECIFICATIONS 7C— 2
CROSS-SECTIONAL VIEW 7C— 3
OPERATION OF COMPONENTS . 7C— 4
FLUID PASSAGE LOCATION 7C— 5
TROUBLESHOOTING 7C— 8
GENERAL NOTE 7C— 8
QUICK DIAGNOSIS CHART 7C— 9
STEP 1
(PRELIMINARY INSPECTION).... 7C— 12
STEP 2 (STALL TEST) 7C— 14
STEP 3 (TIME LAG TEST) 7C— 17
STEP 4 (ROAD TEST) 7C— 18
STEP 5 (OIL PRESSURE TEST)... 7C— 20
ELECTRIC COMPONENTS 7C— 23
INHIBITOR SWITCH 7C— 23
KICK-DOWN SWITCH 7C— 23
KICK-DOWN SOLENOID 7C— 24
ON-VEHICLE MAINTENANCE 7C- 25
AUTOMATIC TRANSAXLE FLUID
(ATF) 7C— 25
SELECTOR LEVER 7C— 26
VACUUM DIAPHRAGM 7C— 27
REPLACEMENT OF CONTROL
VALVE 7C— 28
REPLACEMENT OF SERVO
PISTON RETURN SPRING 7C— 29
REMOVAL 7C— 30
PREPARATION 7C— 30
DISASSEMBLY 7C— 35
DISASSEMBLY-STEP 1 7C— 35
DISASSEMBLY-STEP 2 7C— 41
DISASSEMBLY-STEP 3 7C— 45
DISASSEMBLY-STEP 4 7C— 51
INSPECTION AND REPAIR 7C- 54
PRECAUTION 7C— 54
TORQUE CONVERTER 7C— 54
OIL PUMP 7C— 55
FRONT CLUTCH 7C— 58
REAR CLUTCH 7C— 62
REAR CLUTCH HUB 7C— 65
DRUM HUB 7C— 66
ONE-WAY CLUTCH INNER RACE 7C— 68
BAND SERVO 7C— 69
BRAKE BAND 7C— 70
PLANETARY CARRIER (FRONT).. 7C— 71
ONE-WAY CLUTCH 7C— 71
LOW AND REVERSE BRAKE 7C— 71
GOVERNOR 7C— 72
CONTROL VALVE BODY 7C— 75
DIFFERENTIAL 7C— 79
OUTPUT GEAR 7C— 82
IDLE GEAR 7C— 83
BEARING COVER ASSEMBLY .... 7C— 86
BEARING HOUSING 7C— 87
SIDE BEARING HOUSING 7C— 88
ASSEMBLY 7C— 89
PRECAUTION 7C— 89
ASSEMBLY-STEP 1 7C— 89
ASSEMBLY-STEP 2 7C— 98
ASSEMBLY-STEP 3 7C—106
ASSEMBLY-STEP 4 7C—111
INSTALLATION 7C—119
TORQUE SPECIFICATIONS 7C—119
HYDRAULIC CIRCUIT 7C—125
OUTLINE 7C—125
P RANGE 7C—126
R RANGE 7C—127
N RANGE 7C—128
D RANGE (1ST GEAR) 7C—129
D RANGE (2ND GEAR) 7C—130
D RANGE (3RD GEAR) 7C—131
D RANGE (KICK-DOWN; SHIFT
VALVES IN 2ND POSITION) 7C—132
2 RANGE (2ND GEAR) 7C—133
1 RANGE (1ST GEAR) 7C—134
1 RANGE (2ND GEAR) 7C—135
76G07C-001

7C OUTLINE
OUTLINE
SPECIFICATIONS
Model F3A Model FE engine F6 engine
Torque converter stall torque ratio 1.800-2.100 : 1
Gear ratio
First 2.841
Gear ratio Second 1.541 Gear ratio
Third 1.000
Gear ratio
Reverse 2.400
Final gear ratio 3.450 : 1 3.631 : 1
Number of drive plates/ driven plates
Front clutch 3/3
Number of drive plates/ driven plates Rear clutch 4/4 Number of drive plates/ driven plates
Low and reverse brake 4/4
Servo diameter (Piston outer dia./retainer inner dia.) mm (in) 64/36 (2.52/1.42) 64/44 (2.52/1.73)
Speedometer gear ratio (Driven/Drive gear) 0.80 (20/25) 0.84 (21/25)
Automatic transaxle fluid
Type Dexron-II or M-III
Automatic transaxle fluid Capacity liters
(US qt, Imp qt) 6.2 (6.6, 5.5)
76G07C-002
7C—2

OUTLINE 7C
CROSS-SECTIONAL VIEW
76G07C-003
1. Transaxle case
2. Front clutch
3. Rear clutch
4. Connecting shell
5. Rear clutch hub
6. Planetary carrier (front)
7. Sun gear
8. Low and reverse brake
9. One-way clutch
10. One-way clutch inner race
11. Planetary carrier (rear)
12. Drum hub assembly
13. Bearing housing
14. Output gear
15. Turbine shaft
16. Oil pump shaft
17. Bearing cover
18. Oil seal
19. Torque converter
20. Converter housing
21. Oil seal
22. Speedometer drive gear
63U07B-003
23. Side gear
24. Pinion gear
25. Pinion shaft
26. Differential gear case
27. Ring gear
28. Oil seal
29. Side bearing housing
30. Control valve body
31. Oil pan
32. Oil pump
7C-3

7C OUTLINE
OPERATION OF COMPONENTS
76G07C-004
1. Crankshaft 7. Internal gear 13. Output gear
2. Torque converter 8. Planetary carrier (front) 14. Idle gear
3. Front clutch 9. Pinion gear 15. Parking gear
4. Brake band 10. Low and reverse brake 16. Oil pump
5. Rear clutch 11. Planetary carrier (rear)
6. Connecting shell 12. One-way clutch
Shift position Gear ratio Clutch Low and reverse brake
Band servo One-way clutch Shift position Gear ratio Front Rear
Low and reverse brake Operation Release One-way clutch
P — O
R 2.400 O o O
N —
D
1 2.841 O O
D 2 1.541 O O D
3 1.000 O o ® o
2 1.541 o o
1 2 1.541 0 0 1 1 2.841 0 o
® : Indicates fluid pressure to servo but not applied due to pressure difference in servo. 76G07C-005
7C-4

OUTLINE 7C
FLUID PASSAGE LOCATION
Torque Converter
76G07C-006
Oil Pump
76G07C-007
7C—5

7C OUTLINE
Transaxle Case
Outlet to governor valve
Inlet to governor valve'
Governor pressure
check port
To low and reverse brake
Band servo (Apply side)
Band servo (Release side)
Inlet to governor valve Inlet to oil pump
Outlet to front clutch
Outlet to rear clutch
Outlet to governor valve j Outlet to torque converter
Line pressure check port Outlet to oil pump
Outlet to oil pump Inlet to oil pump
Outlet to front clutch
Outlet to rear clutch
Outlet to torque converter
Band servo (Apply side)
Band servo (Release side)
Outlet to governor valve—
Inlet to governor valve
reverse brake
76G07C-008
7C—6