2004 DAEWOO LACETTI aisin automatic transaxle

AISIN AUTOMATIC TRANSAXLE 5A2 – 205
DAEWOO V–121 BL4
Lower Valve Body
1. Key
2. Spring
3. 4–3 Shift Timing Valve
4. Key
5. Plug
6. 2–3 Shift Valve
7. Spring
8. Key
9. Plug
10. 1–2 Shift Valve
11. Spring
12. Key
13. Sleeve
14. Plunger15. Spring
16. Primary Regulator Valve
17. Key
18. Sleeve
19. Plunger
20. Spring
21. Lock–up Relay Valve
22. Key
23. Spring
24. Solenoid Modulator Valve
25. Solenoid Oil Strainer
26. Lower Modulator Valve
27. Spring
28. Key

5A2 – 206IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Lower Valve Body Spring
MarkName (Color)Free length/Outer diameter mm
(in.)Total number of
coils
A4–3 shift timing valve No.1 (None)33.95 (1.3366) / 8.2 (0.323)12.5
BLow modulator valve (None)30.43 (1.1980) / 7.75 (0.3051)12.72
C2–3 shift valve (Red)25.50 (1.0039) / 9.73 (8.1694)7.75
D1–2 shift valve (Red)25.50 (1.0039) / 9.73 (8.1694)7.75
EPrimary regulator valve (None)50.53 (1.9894) / 13.6 (0.535)11.07
FLock up relay valve (Red)23.42 (0.9221) / 5.86 (0.2307)12.25
GSolenoid modulator valve (Yellow)32.13 (1.2650) / 8.0 (0.315)15.75

AISIN AUTOMATIC TRANSAXLE 5A2 – 207
DAEWOO V–121 BL4
Lower Valve Body Key
MarkRetainerHeight/Width/Thickness mm (in.)
A4–3 shift timing valve No.136.0 (1.417) / 5.0 (0.197) / 3.2 (0.126)
BLow modulator valve24.0 (0.945) / 5.0 (0.197) / 3.2 (0.126)
C2–3 shift valve10.0 (0.394) / 5.0 (0.197) / 3.2 (0.126)
D1–2 shift valve10.0 (0.394) / 5.0 (0.197) / 3.2 (0.126)
EPrimary regulator valve9.8 (0.386) / 5.2 (0.205) / 3.2 (0.126)
FLock up relay valve16.0 (0.630) / 5.0 (0.197) / 3.2 (0.126)
GSolenoid modulator valve24.0 (0.945) / 5.0 (0.197) / 3.2 (0.126)

5A2 – 208IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DIFFERENTIAL CASE
1. Differential Pinion Thrust Washer
2. Differential Pinion Gear
3. Differential Side Gear Thrust Washer
4. Differential Side Gear
5. Pin
6. Differential Pinion Shaft
7. Oil Seal
8. Side Bearing Outer Race9. Tapered Roller Bearing
10. Differential Case
11. Differential Ring Gear
12. Tapered Roller Bearing
13. Side Bearing Outer Race
14. Shim
15. Oil Seal

AISIN AUTOMATIC TRANSAXLE 5A2 – 209
DAEWOO V–121 BL4
Tools Required
DW260–031–01 Transaxle Housing Oil Seal Installer
DW260–031–02 Transaxle Case Oil Seal Installer
DW240–150 Transaxle Case Side Bearing Outer Race
Adapter
DW240–140 Transaxle Housing Side Bearing Outer Race
Adapter
DW240–170 Adapter Handle
Disassembly Procedure
1. Place the matchmarks on the ring gear and differ-
ential case.
2. Remove the 8 bolts.
3. Using a plastic hammer, tap on the ring gear to re-
move it from the case.
4. Using a suitable puller, remove the tapered roller
bearing of transaxle housing side.

5A2 – 210IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
5. Using a suitable puller, remove the tapered roller
bearing of transaxle case side.
6. Using a pin punch and hammer, drive out the pin
from the ring gear side.
7. Remove the differential pinion shaft from the case.
8. Remove the 2 differential pinion gears, 2 differential
side gears, 2 differential pinion thrust washers and
2 differential side gear thrust washers.

AISIN AUTOMATIC TRANSAXLE 5A2 – 211
DAEWOO V–121 BL4
9. Using a driver, remove the oil seal from the trans-
axle housing.
Notice : Be careful not to damage the transaxle housing
when removing the oil seal using a driver.
10. Using a suitable puller, remove the side bearing
outer race of transaxle housing.
11. Using a driver, remove the oil seal of transaxle
case.
Notice : Be careful not to damage the transaxle case
when removing the oil seal using a driver.
12. Using transaxle case side bearing outer race adapt-
er DW240–150 and adapter handle DW240–170,
remove the transaxle case side bearing outer race
and shim.

5A2 – 212IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Assembly Procedure
1. Using transaxle housing side bearing outer race
adapter DW240–140 and adapter handle
DW240–170, install a new side bearing outer race
into the transaxle housing.
2. Install the shim to the transaxle case.
Notice : First install a shim of the same thickness as be-
fore.
3. Install a new side bearing outer race into the trans-
axle case.
4. Coat the thrust washers, side gears, pinion gears
and pinion thrust washers with ATF.
5. Install the 2 differential side gear thrust washers to
2 differential side gears.
6. Install the 2 side gears with 2 thrust washers, 2 pin-
ion gears and 2 pinion thrust washers into the dif-
ferential case.
7. Coat the pinion shaft with ATF.