What are lifters commonly known as in small engine technology?

Lifters are commonly known as tappets in small engine technology. These components are critical in the engine's valvetrain system, functioning to transfer the motion from the camshaft to the pushrods or directly to the rocker arms, thereby assisting in the opening and closing of engine valves. By maintaining precise timing and movement, tappets ensure that the engine breathes properly, which is essential for its performance and efficiency.

Understanding the role of tappets is crucial for anyone working with small engines, as they can affect engine timing and overall functionality. This knowledge is especially relevant when diagnosing engine problems or performing maintenance, as a failure in the tappets can lead to significant engine issues, including loss of power or increased wear.