Actuator Arm

The actuator arm, also known as the diaphragm link, is a crucial component in the advance mechanism of a distributor. It serves to connect the diaphragm to the contact breaker platform. This linkage plays a significant role in regulating the timing of ignition in an internal combustion engine, ensuring optimal performance and efficiency. By controlling the movement of the contact breaker platform in response to changes in engine conditions, the actuator arm helps maintain the engine’s timing in sync with its operational requirements.