Torque Converter Turbine To Pump Stator Interference Check

NOTE: The pump support may remain in the pump assembly during this test.

Position the torque converter with the pump drive up.
Install the pump support into the torque converter. Engage the splines of the one-way clutch inner race with the mating splines of the front pump support.

Fig 1: Installing Pump Support Into Torque Converter
Courtesy of FORD MOTOR CO.
Install the input shaft, engaging the splines with the turbine hub.

Fig 2: Installing Input Shaft, Engaging Splines With Turbine Hub
Courtesy of FORD MOTOR CO.
Check for stator to turbine interference.
- Hold the front pump support stationary.
- Attempt to rotate the input shaft.
  - The turbine and damper assemblies should rotate in both directions not exceeding maximum torque of 7 Nm (62 lb-in) without any signs of metallic interference or scraping noise.
  Fig 3: Checking For Stator To Turbine Interference
  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.
- The converter crankshaft pilot should be checked for nicks or damaged surfaces that could cause interference when installing the torque converter into the crankshaft. Check the converter front impeller hub for nicks or sharp edges that would damage the pump seal.