Torque Converter Impeller to Pump Stator Interference Check

NOTE: Front pump support may remain in front pump support and gear during this test.

Position the front pump support with the splines up.
Mount the torque converter on the front pump support with the splines on the one-way clutch inner race, engaging the mating splines of the front pump support.

Fig 1: Mounting Torque Converter On Front Pump
Courtesy of FORD MOTOR CO.
Hold the front pump support stationary and rotate the torque converter counterclockwise.
- The torque converter should rotate freely with no signs of scraping.
- If there are signs of scraping, install a new or remanufactured torque converter.
Fig 2: Holding Front Pump Support Stationary
Courtesy of FORD MOTOR CO.
Install the forward clutch cylinder and shaft, engaging the splines with the rear clutch hub.
Check for stator to turbine interference.
1. Hold the front pump support stationary.
2. Attempt to rotate the forward clutch cylinder and shaft.
  - The turbine and torque converter clutch assemblies should rotate in both directions, not exceeding maximum torque of 9.5 Nm (7 lb-ft), 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.