Description

Valve stems are a critical part of the engine’s cylinder head, as they play a role in controlling the flow of exhaust gases and intake air into the engine, as well as regulating pressure.

Function The valve stem is the long, cylindrical part of the valve that sits within the valve guide. It helps maintain proper sealing in the engine while allowing the valve to move up and down during the engine’s operation. It is crucial for controlling the intake and exhaust cycles within the engine.
Material Usually made of high-strength steel or similar durable materials to withstand the intense heat and pressure generated in the combustion chamber.
Design It typically features a smooth surface and a precise diameter to fit securely into the valve guide and allow for proper operation of the valve.