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What is Flex Plate

A flexplate, also known as a flexplate or flywheel/flexplate assembly, is a component of an engine’s crankshaft system that provides a mounting point for the torque converter, which connects the engine to the transmission. The flexplate is bolted to the engine’s crankshaft, and the torque converter is bolted to the flexplate.

The flexplate is designed to flex slightly as the engine operates, which helps to absorb the vibrations and torque fluctuations that occur during operation. It is made of steel and is thinner and lighter than a traditional flywheel, which is used in manual transmission systems.

What is the Purpose of Flex Plate

A flex plate, also known as a flywheel/flexplate assembly, is a component found in an automatic transmission system that serves several important purposes. The main purpose of a flex plate is to connect the engine to the torque converter and to allow the engine to transfer power to the transmission.

• Balancing: Flex plates are carefully balanced to minimize vibrations in the engine and transmission. This helps to reduce wear on the transmission and other components.
• Torque multiplication: The flex plate is designed to increase torque multiplication in the transmission. This is achieved by increasing the pressure on the torque converter’s internal vanes, which helps to transfer more power to the wheels.
• Starter motor engagement: The flex plate provides a mounting point for the starter motor. When the starter motor engages with the teeth on the flex plate, it rotates the engine and helps to start the vehicle.

In summary, the flex plate plays a critical role in the operation of an automatic transmission by connecting the engine to the transmission, balancing the engine, increasing torque multiplication, and providing a mounting point for the starter motor.