Why do you need clearance adjustment of valves?

Clearance adjustment of valves is necessary to ensure proper engine performance and longevity. It allows for the correct gap between the valve and the rocker arm, which facilitates optimal opening and closing of the valves at the right time. Without proper clearance, valves may not fully close, leading to loss of compression, increased wear, and potential engine damage. Regular adjustments help maintain efficient engine operation and reduce noise.