Technician A says the torque multiplication phase can occur when the stator one-way clutch begins to freewheel. Technician B says the torque multiplication phase can occur when the stator one-way clutch locks up. Which technician is correct?

Question

Quizplus · Accepted Answer

Technician B is correct because the torque multiplication phase in a torque converter occurs when the stator one-way clutch locks up, not when it begins to freewheel. The locking of the stator redirects the fluid flow between the impeller and turbine, creating a torque increase. When the stator freewheels, it does not contribute to torque multiplication.

Technician a Says the Torque Multiplication Phase Can Occur When