How to Adjust Car Valves?

[Petunia]

Car valve adjustment methods are as follows: 1. Car valves are located at the top of the engine's combustion chamber in the cylinder head. They act as controllable gates regulating air intake into the engine, connecting the air filter above and the engine block below, often referred to as the throat of the car engine. 2. Before adjustment, ensure the valve contact surfaces are thoroughly cleaned, and the engine must be completely cooled to prevent burns. 3. Since valves in different cylinders cannot all be closed simultaneously, valve clearance cannot be adjusted all at once. Typically, adjust valves cylinder by cylinder. When reinstalling the valve cover, tighten the bolts diagonally in multiple steps—after securing one bolt, proceed to its diagonal counterpart—to ensure even pressure distribution on the valve cover gasket.