Torque Converter Turbine To Pump Stator Interference Check

Position the torque converter with the converter hub up.
Install a pump stator support, engaging the mating splines of the stator support shaft.

Fig 1: Installing Pump Stator Support
Courtesy of FORD MOTOR CO.
Install the input shafts, engaging the splines with the turbine hub.

Fig 2: Installing Input Shafts
Courtesy of FORD MOTOR CO.
Hold the stator support stationary and attempt to rotate the turbine with the input shafts.
- The turbine and lockup clutch assemblies should rotate in both directions, without any signs of interference or metallic scraping noise.
  
  Fig 3: Identifying Turbine And Lockup Clutch Assemblies Rotating Directions
  Courtesy of FORD MOTOR CO.
If interference exists, the stator front thrust washer may be worn, allowing the stator to hit the turbine. In such cases, a new or remanufactured torque converter must be installed.
- Check the converter crankshaft pilot for nicks or damaged surfaces that could cause interference when installing the torque converter into the crankshaft pilot. Check the converter front impeller hub for nicks or sharp edges that would damage the pump seal.