[23] AUTOMATIC TRANSMISSION - - GENERAL INFORMATION | PRINT PAGE / INDEX / PRIOR / NEXT

GENERAL INFORMATION
The automatic transmissions have four types; W4A4B for 4G69 engine vehicles, W4A42 for 4G64 engine vehicles, F4A42 and W5A51 for 4G63 engine vehicles. Each transmission has the following features. The F4A42 transmission is basically the same as that adopted for the COLT/LANCER. The W4A42 transmission is based on the F4A42 transmission, however, the transfer case is added in order to be installed to 4WD vehicles. Although W4A4B transmission is basically the same as W4A42 type, the gear ratio at 2nd, 4th and reverse, and electronic control system have been changed. The W5A51 transmission is based on the F5A42 transmission adopted for FTO, however, the number of discs of the brake and clutch is increased, allowing to increase the torque capacity. In addition to the above, the transfer case is added in order to be installed to 4WD vehicles. For the vehicles with the W5A51 transmission, the steering shift switch and downshift inhibition buzzer are added. NOTE: Refer to 1996 COLT/LANCER Technical Information Manual (Pub. No. PYME9502) and 1998 FTO Technical Information Manual (Pub. No. PYME9801) for more information regarding the description of structure and operations.
SPECIFICATIONS
<4G69>
Item | Specifications
--- | ---
Transmission model | W4A4B
Torque converter | Type | 3-element, 1-stage, 2-phase type
Lock-up | Provided
Stall torque ratio | 2.0
Transmission type | 4 forward speeds, 1 reverse speed, fully automatic
Transmission gear ratio | 1st | 2.842
2nd | 1.573
3rd | 1.000
4th | 0.688
Reverse | 2.214
Clutch | Multi-disc type (3 sets)
Brake | Multi-disc type (2 sets)
Manual control system | P-R-N-D (4 positions) + sport mode
Shift pattern control | Electronic control (INVECS-II)
Hydraulic control during shifting | Electronic control (Each clutch hydraulically independently controlled)
Lock-up clutch control | Electronic control
Transmission fluid | Specified lubricants | DIA QUEEN ATF SP III
Quantity L | 8.1
Transfer oil | Specified lubricants | Hypoid gear oil API classification GL-5 SAE 90
Quantity L | 0.55
<4G64>
Item | Specifications
--- | ---
Transmission model | W4A42
Torque converter | Type | 3-element, 1-stage, 2-phase type
Lock-up | Provided
Stall torque ratio | 2.01
Transmission type | 4 forward speeds, 1 reverse speed, fully automatic
Transmission gear ratio | 1st | 2.842
2nd | 1.529
3rd | 1.000
4th | 0.712
Reverse | 2.480
Clutch | Multi-disc type (3 sets)
Brake | Multi-disc type (2 sets)
Manual control system | P-R-N-D (4 positions) + sport mode
Shift pattern control | Electronic control (INVECS-II)
Hydraulic control during shifting | Electronic control (Each clutch hydraulically independently controlled)
Lock-up clutch control | Electronic control
Transmission fluid | Specified lubricants | DIA QUEEN ATF SP III
Quantity L | 8.1
Transfer oil | Specified lubricants | Hypoid gear oil API classification GL-5 SAE 90
Quantity L | 0.55
<4G63>
Item | Specifications
--- | ---
Engine model | 4G63-SOHC | 4G63-DOHC
Transmission model | F4A42 | W5A51
Torque converter | Type | 3-element, 1-stage, 2-phase type
Lock-up | Provided
Stall torque ratio | 1.93 | 1.7
Transmission type | 4 forward speeds, 1 reverse speed, fully automatic | 5 forward speeds, 1 reverse speed, fully automatic
Transmission gear ratio | 1st | 2.842 | 3.789
2nd | 1.529 | 2.057
3rd | 1.000 | 1.421
4th | 0.712 | 1.000
5th | - | 0.731
Reverse | 2.480 | 3.865
Clutch | Multi-disc type (3 sets) | Multi-disc type (4 sets)
Brake | Multi-disc type (2 sets) | Multi-disc type (2 sets), band type (1 sets)
Manual control system | P-R-N-D (4 positions) + sport mode | P-R-N-D (4 positions) + sport mode (with steering shift switch)
Shift pattern control | Electronic control (INVECS-II)
Hydraulic control during shifting | Electronic control (Each clutch hydraulically independently controlled)
Lock-up clutch control | Electronic control
Transmission fluid | Specified lubricants | DIA QUEEN ATF SP III
Quantity L | 7.7 | 8.8
Transfer oil | Specified lubricants | - | Hypoid gear oil API classification GL-5 SAE 90
Quantity L | - | 0.55
SECTIONAL VIEW <F4A4>
|  | 1. | Overdrive clutch
|  | 2. | Reverse clutch
|  | 3. | Overdrive planetary gear set
|  | 4. | Output planetary gear set
|  | 5. | Second brake
|  | 6. | Low-reverse brake
|  | 7. | One-way clutch
|  | 8. | Transfer drive gear
|  | 9. | Transmission case
|  | 10. | Underdrive clutch
|  | 11. | Oil pump
|  | 12. | Torque converter housing
|  | 13. | Damper clutch
|  | 14. | Torque converter
|  | 15. | Input shaft
|  | 16. | Differential
|  | 17. | Differential drive gear
|  | 18. | Transfer driven gear
|  | 19. | Output shaft
|  | 20. | Rear cover
<W4A4>
|  | 1. | Overdrive clutch
|  | 2. | Reverse clutch
|  | 3. | Overdrive planetary gear set
|  | 4. | Output planetary gear set
|  | 5. | Second brake
|  | 6. | Low-reverse brake
|  | 7. | One-way clutch
|  | 8. | Transfer drive gear
|  | 9. | Transmission case
|  | 10. | Underdrive clutch
|  | 11. | Oil pump
|  | 12. | Torque converter housing
|  | 13. | Damper clutch
|  | 14. | Torque converter
|  | 15. | Input shaft
|  | 16. | Transfer assembly
|  | 17. | Viscous coupling unit
|  | 18. | Front differential
|  | 19. | Centre differential
|  | 20. | Differential drive gear
|  | 21. | Transfer driven gear
|  | 22. | Output shaft
|  | 23. | Rear cover
<W5A51>
|  | 1. | Overdrive clutch
|  | 2. | Reverse clutch
|  | 3. | Overdrive planetary gear set
|  | 4. | Output planetary gear set
|  | 5. | Second brake
|  | 6. | Low-reverse brake
|  | 7. | One-way clutch
|  | 8. | Transfer drive gear
|  | 9. | Transmission case
|  | 10. | Underdrive clutch
|  | 11. | Oil pump
|  | 12. | Torque converter housing
|  | 13. | Damper clutch
|  | 14. | Torque converter
|  | 15. | Input shaft
|  | 16. | Transfer assembly
|  | 17. | Viscous coupling unit
|  | 18. | Front differential
|  | 19. | Centre differential
|  | 20. | Differential drive gear
|  | 21. | Output shaft
|  | 22. | Transfer driven gear
|  | 23. | Direct planetary gear set
|  | 24. | Reduction brake
|  | 25. | Direct clutch
|  | 26. | One-way clutch
|  | 27. | Rear cover

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