Technician A says the flywheel and pressure plate assembly both rotate at engine crankshaft speed when the engine is running. Technician B says when the engine is running, and the transmission is in neutral, the transmission input shaft may be either rotating or at rest, depending on the clutch pedal position. Which technician is correct?

Question

Quizplus · Accepted Answer

Both statements are correct. The flywheel and pressure plate assembly indeed rotate at engine crankshaft speed when the engine is running, as stated by Technician A. Technician B is also correct in stating that when the engine is running and the transmission is in neutral, the transmission input shaft may either be rotating or at rest, depending on whether the clutch is engaged or disengaged (clutch pedal position).

Technician a Says the Flywheel and Pressure Plate Assembly Both