How to Deal with Valve Abnormal Noise?

[DelLillian]

Valve abnormal noise can be addressed by readjusting the valve clearance. If the lock nut on the adjustment screw is loose, it should be securely tightened, and severely worn components should be replaced. The function of the valve is to input air into the engine and expel exhaust gases after combustion. Structurally, valves can be divided into intake valves and exhaust valves. The intake valve draws air into the engine to mix with fuel for combustion, while the exhaust valve expels the burned gases and dissipates heat. The valve consists of a valve head and stem. The valve head operates at high temperatures and is subjected to gas pressure, the force of the valve spring, and the inertial force of the transmission components. Due to poor lubrication and cooling conditions, the valve must possess sufficient strength, stiffness, heat resistance, and wear resistance.