Torque Converter: Service and Repair
CLEANING AND INSPECTIONWhen internal wear or damage has occurred in the transaxle, metal particles, clutch plate material or band material may have been carried into the torque converter. These contaminants are a major cause of recurring transaxle troubles and MUST be removed from the system before the transaxle is put back into the vehicle.
Whenever a transaxle has been disassembled to replace worn or damaged parts or because the valve sticks repeatedly from foreign material, the torque converter MUST be cleaned using a mechanical agitated cleaner, such as Rotunda Torque Converter/ Oil Cooler Cleaner 014-00028 or equivalent.
FLUSHING
NOTE: Mineral spirits used to clean the torque converter must be fresh, non-chlorinated and non-halogenated.
Following the instructions included with Rotunda Torque Converter Cleaner 014-00028 or equivalent, flush out the torque converter.
The lack of a drain plug in the AX4S torque converter increases the amount of residual flushing solvent retained in the torque converter after cleaning. This retained solvent is not acceptable and a method of diluting it is required. The following procedure is to be used after removal of the AX4S torque converter from the cleaning equipment.
^ Thoroughly drain the remaining solvent through the impeller hub.
^ Add 1.9 liters (2.0 quarts) of clean automatic transmission fluid to the torque converter.
^ Agitate the solution inside the torque converter by hand.
^ Thoroughly drain the torque converter through the impeller hub.