Transmission Unit (Disassembly)
SST:
Preparation
Precaution
General Notes:
1. Disassemble the transmission in a clean area (clean work space) to prevent contaminants from entering into the mechanisms.
2. Inspect the individual transmission components in accordance with the QUICK DIAGNOSIS CHART during disassembly.
3. Use only plastic hammers when applying force to separate the light alloy case joints.
4. Never use rags during disassembly; they may leave particles that can clog fluid passages.
5. Several parts resemble one another; organize them so that they do not get mixed up.
6. Disassemble the control valve assembly and thoroughly clean it when the clutch or brake band has burned out or when the ATF has degenerated.
Cleaning Notes:
1. Clean the transmission exterior thoroughly with a steam cleaner or cleaning solvents, or both, before disassembly.
2. Clean the removed parts with cleaning solvent, and dry with compressed air. Clean out all holes and passages with compressed air, and check that there are no obstructions.
3. Wear eye protection when using compressed air to clean components.
Disassembly
Disassemble in the order shown in the figure, referring to Disassembly Procedure.
Components 1:
Components 2:
Components 3:
Components
Disassembly procedure
CAUTION: Keep the transmission upright so that any foreign material will remain in the oil pan.
1. Place the transmission on wooden blocks under the converter housing and the extension housing.
CAUTION: If large amounts of material are found, replace the torque converter and carefully check the transmission for the cause.
2. Remove the oil pan and gasket.
3. Examine any material found in the pan or on the magnet to determine the condition of the transmission.
Clutch facing material.....Drive plate and brake band wear
Steel (magnetic).....Bearing, gear and driven plate wear
Aluminum (nonmagnetic).....Bushings or cast aluminum parts wear
4. Install the oil pan with a few bolts to protect the control valve body.
5. Remove the connector bracket from the transmission case.
6. Remove the park/neutral switch.
7. Disconnect the harness from the connector bracket.
8. Remove the connector bracket from the converter housing.
CAUTION: Do not damage the vehicle speed sensors.
9. Remove vehicle speed sensor 2.
10. Remove the O-ring from vehicle speed sensor 2.
11. Remove vehicle speed sensor 1.
12. Remove the O-ring from vehicle speed sensor 1.
CAUTION: Do not damage the vehicle speed pulse generator.
13. Remove the vehicle speed pulse generator and gasket from the transmission case.
14. Remove the O-ring from the vehicle speed pulse generator.
NOTE: Be careful not to spill the ATF when removing the torque converter.
15. Remove the torque converter.
16. Assemble the SST as shown.
17. Mount the transmission to the SST.
18. Remove the oil pan, gasket, and magnet.
19. Remove the extension housing and gasket.
Bolt length (measured from below bolt head)
A: 30 mm (1.181 in)
B: 45 mm (1.772 in)
CAUTION: Do not damage the harness or connector.
20. Remove the clip.
21. Remove the solenoid valve (lockup) connector.
22. Remove the ATF thermosensor.
Bolt length (measured from below bolt head): 45 mm (1.772 in)
23. Remove the oil strainer.
Bolt length (measured from below bolt head): 50 mm (1.969 in)
24. Remove the O-ring from the oil strainer.
25. Separate the solenoid valve harness from the harness clip.
26. Remove bolts A and B and the brackets shown in the figure.
Bolt length (measured from below bolt head)
A: 33 mm (1.299 in)
B: 45 mm (1.772 in)
CAUTION: Do not damage the harness or connector.
27. Remove the clip.
28. Disconnect the solenoid valve connectors.
29. Remove the control valve body.
30. Remove the accumulator springs.
CAUTION: Do not damage the solenoid connector.
31. Remove the solenoid connector from the transmission case.
32. Remove the O-ring from the solenoid valve harness.
33. Remove the converter housing from the transmission case.
CAUTION: Do not damage the sealing surface.
34. Clean the sealant from the converter housing.
35. Remove the O-ring from the input shaft.
36. Install the SST to the oil pump.
CAUTION: Do not damage the sealing surface; remove slowly.
37. Remove the oil pump from the transmission case by evenly sliding the weights of the SST. Remove the SST from the oil pump.
CAUTION: Do not scratch the oil pump housing.
38. Clean the sealant from the oil pump housing.
39. Remove the oil pump gasket.
40. Pull out the input shaft while holding the reverse clutch drum.
41. While holding the anchor end bolt, loosen the locknut.
CAUTION: Do not reuse the anchor end bolt.
42. Remove the anchor end bolt.
43. Clean the sealant from the case threads.
CAUTION: To prevent the brake facing from cracking or peeling, do not stretch the brake band. Secure it with a wire clip.
44. Remove the brake band and the band strut.
45. Remove the reverse clutch, high clutch, and front sun gear assembly from the transmission case.
46. Remove the front planetary carrier, bearings, and rear sun gear.
Inspect the following and replace as necessary.
1. Front planetary carrier
Inspect gear teeth for damage, wear, and cracks. Check for rough rotation of pinion gears.
2. Rear sun gear
Inspect gear teeth for damage, wear, and cracks.
3. Bearing
Inspect for damage and rough rotation.
47. Remove the rear snap ring and the speedometer driver ear.
48. Remove the key and the front snap ring.
49. Remove the snap ring from the output shaft.
50. Remove the parking gear.
51. Remove the bearing from the rear of the transmission case.
Inspect for damage and rough rotation. Replace as necessary.
52. Push the output shaft slightly forward and remove the snap ring from the output shaft.
53. Slide out the output shaft from the rear of the transmission case.
54. Remove the front internal gear (integrated with rear planetary carrier).
55. Remove the rear internal gear, forward clutch hub, and overrunning clutch hub assembly.
56. Remove the forward clutch drum (forward clutch, overrunning clutch, and low one-way clutch) assembly.