• Singhla Autotech Private Limited

Valve Guide

Singhla Autotech offers valve guide. A valve guide is a tube that runs through an engine’s cylinder head in which the exhaust and intake valves are positioned. The valve guide is typically made of a material, such as bronze, and guides the valve, keeping it straight. As the valve guide wears, the valve stem begins to become loose and oil is able to leak into the combustion chamber. This creates smoke and a loss of power from the engine. The valve guide is only used for engines using a push rod-type camshaft. For the overhead valve type of engines, the valve guide is not utilised as the cam actually actuates the valves and push rods are not used. The typical valve guide is designed to outlive the engine and thus will never require repair. With proper lubrication and scheduled oil change intervals, the valve guides will remain in peak operational form. The valve guides are designed to fit the valve stems with a minimal amount of clearance and they use oil that is seeped through the valve guide seal for lubrication. This oil is tasked with the job of controlling the high temperatures of the valve stem through the process of combustion.