Internal Inspection Procedure

If it has been determined that internal transaxle damage has occurred, a complete transaxle reconditioning must be performed. Follow the procedures in the "Automatic Transaxle Service Manual," with emphasis on the following inspections and cleaning procedures.

1. Clean and inspect the rear cover, transaxle cooler pipes, and control valve body assembly as described in the "Flushing Procedure" in this bulletin

2. Completely disassemble the transaxle case and clean using parts cleaning solvent and allow to dry. Flush all internal passages with clean carburetor or brake cleaner and blow out with compressed air. Using a dry rag, wipe any magnetic material from the turbine speed sensor.

3. Completely disassemble the input and output shaft assembly. Flush the internal passages with clean carburetor or brake cleaner and blow out with compressed air.

4. Completely disassemble the clutch housings and discard the clutch pistons.

5. Inspect the clutch plates for possible damage. Replace damaged clutch plates if any of the following conditions exist:

^ If the friction material on the clutch plates has pulled away or started to pull away from the steel back.

^ The lettering is not visible on the friction material.

^ Heat distress is visible on the steel backing.

IMPORTANT
It is not necessary to replace the clutch housing and/or gear and hub assembly if they show discoloration. Replace them only if their is evidence of physical damage.

6. Clean the clutch housings with clean carburetor or brake cleaner.

IMPORTANT:
Clutch plates are to be cleaned using clean transaxle fluid only. Do not use solvents to clean clutch plates.

7. Remove the oil pump and stator shaft assembly from the converter housing and inspect the drive gear hub hub bore of the converter housing for damage. The drive gear hub bore should have uniform machining marks and should not be scored. Look for any cracks at the oil pump drain hole. Replace converter housing if damaged.





8. Inspect the pump drive and driven gears and wear plate for signs of pitting. Inspect the pump body for any scoring or cracks. Replace the pump assembly if damaged.

9. Clean the converter housing using parts cleaning solvent and allow to dry. Flush all internal passages with clean brake cleaning fluid or carburetor cleaner and blow out with compressed air. Using a clean dry rag, wipe any iron sediment from the vehicle speed sensor.

10. Inspect the torque converter pump drive hub for any scoring or pitting. Replace the torque converter if damaged.

11. Drain as much transaxle fluid from the torque converter as possible. (A small amount of transaxle fluid will remain in the torque converter.) Check torque converter end play using SA9163T, following procedures in the "Automatic Transaxle Service Manual." Replace the torque converter clutch.

IMPORTANT:
The torque converter should be replaced if a hard part (i.e. gear or shaft) failure or a pump failure has occurred in the transaxle.

12. Assemble the transaxle.

IMPORTANT
Replace the transaxle suction filter and pressure filter. Wipe the magnet clean with a clean dry rag.

13. Install transaxle and test drive to verify repair. Refer to test drive procedure in this bulletin.