2004 DAEWOO LACETTI aisin automatic transaxle

AISIN AUTOMATIC TRANSAXLE 5A2 – 165
DAEWOO V–121 BL4
132. Temporarily install the control lever.
133. Turn the lever counterclockwise until it stops,
then turn it clockwise 2 notches.
134. Remove the control lever.
135. Align the groove with neutral basic line.
136. Tighten the 2 bolts.
Tighten
Tighten the bolts to 5.4 NSm (48 lb–in).
137. Using a screwdriver, stake the nut with the lock
washer.

5A2 – 166IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
138. Install the control lever, washer and nut.
Tighten
Tighten the nut to 12 NSm (106 lb–in).
139. Install the torque converter to the transaxle.
140. Measure the installation depth of the torque
converter. Standard value: 11.1 mm
If the measured value is beyond the standard
value, readjust the torque converter within the
specified value.

AISIN AUTOMATIC TRANSAXLE 5A2 – 167
DAEWOO V–121 BL4
OIL PUMP
1. Oil Pump Body
2. Oil Pump Drive Gear
3. Oil Pump Driven Gear4. Stator Shaft
5. Bolt

5A2 – 168IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Disassembly Procedure
1. Turn the drive gear with 2 screwdrivers and make
sure it rotates smoothly.
Notice : Be careful not to damage the oil lip.
2. Remove the 8 bolts and stator shaft.
Notice : Be careful not to let the driver drop as it might
come off attached to the stator shaft.
3. Remove the oil pump drive gear and driven gear
from the oil pump body.
Inspection Procedure
1. Push the driven gear to one of side of the body.
Using a feeler gauge, measure the clearance.
S Standard body clearance:
0.10
0.17 mm (0.0039
0.0067 in.)
S Maximum body clearance: 0.17 mm (0.0067 in.)
If the body clearance is greater than the maxi-
mum, replace the oil pump body sub–assembly.

AISIN AUTOMATIC TRANSAXLE 5A2 – 169
DAEWOO V–121 BL4
2. Measure the tip clearance between the driven gear
teeth and drive gear teeth.
S Standard tip clearance:
0.07
0.15 mm (0.0028
0.0059 in.)
S Maximum tip clearance: 0.15 mm (0.0059 in.)
If the tip clearance is greater than the maximum,
replace the oil pump body sub–assembly.
3. Using a steel straight edge and feeler gauge, mea-
sure the side clearance of both gears.
S Standard side clearance:
0.02
0.05 mm (0.0008
0.0020 in.)
S Maximum side clearance: 0.05 mm (0.0020 in.)
If the side clearance is greater than the maxi-
mum, replace the drive gear, driven gear or
pump body.
4. Using a dial indicator, measure the inside diameter
of the oil pump body bushing.
S Standard inside diameter: 38.126 mm (1.50102
in.)
S Maximum inside diameter: 38.188 mm (1.50346
in.)
If the inside diameter is greater than the maxi-
mum, replace the oil pump body sub–assembly.
5. Using a dial indicator, measure the inside diameter
of the stator shaft bushings.
S Standard inside diameter: 18.437 mm (0.72586
in.)
S Maximum inside diameter: 18.5 mm (0.728 in.)
If the inside diameter is greater than the maxi-
mum, replace the stator shaft.

5A2 – 170IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Assembly Procedure
1. Install the oil pump drive gear and driven gear.
2. Align the stator shaft with each bolt hole.
3. Install the 8 bolts.
Tighten
Tighten the bolts to 9.8 NSm (87 lb–in).
4. Turn the drive gear with 2 screwdrivers and make
sure it rotates smoothly.
Notice : Be careful not to damage the oil lip.

AISIN AUTOMATIC TRANSAXLE 5A2 – 171
DAEWOO V–121 BL4
DIRECT CLUTCH
1. Seal Ring
2. Input Shaft Sub–assembly
3. O–Ring
4. Piston
5. O–Ring
6. Return Spring7. Snap Ring
8. Plate
9. Disc
10. Flange
11. Snap Ring

5A2 – 172IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Tools Required
DW240–020 Brake/Clutch Spring Compressor
DW240–040 Direct Clutch Adapter
Disassembly Procedure
WARNING : USE CAUTION WHEN CHECKING COM-
PONENTS WITH COMPRESSED AIR OR PERSONAL
INJURY MAY RESULT.
1. Install the direct clutch and thrust needle roller
bearing on the oil pump.
2. Using a dial indicator, measure the direct clutch
piston stroke while applying and releasing 392 kPa
(57 psi).of compressed air.
Piston stroke: 0.4
0.8 mm (0.016
0.031 in.)
If the stroke is non–standard, inspect the discs,
plates and flange.
3. Using a screwdriver, remove the snap ring.
4. Remove the flange, 2discs and 2 plates.
5. Place the brake/clutch spring compressor
DW240–020 and direct clutch adapter DW240–040
on the direct clutch return spring and compress.
6. Using a snap ring expander, remove the snap ring.
Notice : Stop the press when the piston return spring is
lowered to the place 1–2 mm (0.039–0.078 in.) from the
snap ring groove, preventing the piston return spring from
being deformed.
Notice : Do not expand the snap ring excessively.