The video shows a close-up of a metal engine with a black tool being inserted into it. The tool is being used to adjust the engine's components, which are visible in the background. The engine appears to be well-maintained and clean, with no visible signs of damage or wear. The tool is inserted into a specific part of the engine, and the camera follows its movement as it adjusts the components. The video provides a detailed view of the engine's internal workings, showcasing the complexity and precision required in mechanical engineering.