Vehicular Automatic Transmission Flexplate

A vehicular automatic transmission flexplate, also known as a flexplate or a flexplate assembly, is a crucial component in an automatic transmission system. It is a circular metal plate that connects the engine's crankshaft to the torque converter.

The flexplate serves several important functions in the transmission system. Firstly, it provides a mounting surface for the torque converter, which is responsible for transferring power from the engine to the transmission. The flexplate allows the torque converter to rotate and engage with the engine's crankshaft.

Secondly, the flexplate acts as a flywheel, providing rotational inertia to smooth out the engine's power delivery. This helps to prevent engine stalling and provides a smoother driving experience.

Additionally, the flexplate contains teeth around its outer edge, which engage with the starter motor's gear. When the ignition key is turned, the starter motor engages with the flexplate, allowing the engine to start.

Flexplates are typically made of steel or cast iron to withstand the high torque and rotational forces generated by the engine. They are designed to be durable and reliable, but can occasionally fail due to wear and tear or damage.

In summary, a vehicular automatic transmission flexplate is a vital component that connects the engine's crankshaft to the torque converter, provides rotational inertia, and allows the engine to start.