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Engine lifters, also known as hydraulic lifters or tappets, are components in an engine's valvetrain that help control the opening and closing of the engine's valves. They maintain zero valve clearance by adjusting automatically to variations in temperature and wear, ensuring smooth operation and optimal performance. Typically cylindrical in shape, lifters can be made from metal and often have a hollow center filled with hydraulic fluid to facilitate their function. They are usually located in the engine block or cylinder head, depending on the engine design.

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2mo ago

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