The Animation

The animation below, which may still be loading, will be presented in four distinct phases. First, you will see the power stroke, from top dead center to the point where the exhaust ports are first exposed. Second, you will see the exhaust leave and the new air charge enter through the valves in the head, then third, you will see the valves close and the compression. When you then choose to continue, you will see the entire cycle.

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