Section 07-01B: Transmission, Automatic—AOD
1993 Mustang Workshop Manual
CLEANING AND INSPECTION

Converter End Play, One-Way Clutch Check

Tools Required:

 

End Play Check

  1. Insert End Play Checking Tool T80L-7902-A into the converter pump drive hub until it bottoms.
  1. Expand the sleeve in the turbine spline by tightening the threaded inner post until the tool is securely locked in to the spline.



  1. Attach Dial Indicator with Bracketry TOOL-4201-C or equivalent to the tool. Position the indicator button on the converter pump drive hub, and set the dial face at zero.
  1. Lift the tool upward as far as it will go and note the indicator reading. The indicator reading is the total end play which the turbine and stator share. Replace the converter unit if the total end play exceeds the limits indicated in Specifications.
  1. Loosen the threaded inner post to free the tool and remove the tool from the converter.



 

Converter One-Way Roller Clutch Check

Tools Required:

  1. Insert the Converter Clutch Holding Tool T77L-7902-R, in one of the grooves in the stator thrust washer.



  1. Insert Converter Clutch Torquing Tool T76L-7902-C in converter pump drive hub to engage one-way roller clutch inner race.
  1. Attach a torque wrench to the one-way roller clutch tightening tool. With the one-way roller clutch holding tool held stationary, turn the torque wrench counterclockwise. The converter one-way clutch should lock up and hold a 13 Nm (10 lb-ft) force. The converter one-way clutch should rotate freely in a clockwise direction. Try the clutch for lock up and hold in at least five different locations around the converter.
  1. If the clutch fails to lock up and hold a 13 Nm (10 lb-ft) torque, replace the converter unit.



 

Converter Damper/Hub Assembly Weld Check

 

Tools Required:

  1. Position Holding Fixture T83L-7902-A3 in a vise and clamp tight.
  1. Place the converter on top of the holding fixture aligning the pilot hub and one stud in the appropriate holes.
  1. Spline Rod Torque Adapter T83L-7902-A1 into the converter, making sure the splines engage the damper assembly.
  1. Install Pilot Guide T83L-7902-A2, over the rod torque adapter turning tool and onto the impeller hub.
  1. Hold the converter snug to the holding fixture with one hand when tightening.
  1. Turn the shaft clockwise and counterclockwise applying approximately 67.7 Nm (50 lb-ft) torque with a 3/4-inch drive socket and torque wrench.
  1. The shaft should not turn more than four degrees.
  1. If there is a grinding noise and/or if the shaft turns more than four degrees, the converter damper assembly, welds, rivets or reaction hub are broken. Replace the torque converter.