How to Solve the Abnormal Noise of Valve Tappets?

1 Answers
AutumnAnn
07/30/25 10:07am
The causes and solutions for abnormal noise in valve tappets are: 1. Wear, burn marks, spots, or depressions on the working surface of the valve and valve seat ring, or carbon buildup. 2. Excessive clearance between the valve stem and valve guide, causing the valve stem to wobble, or a bent valve stem and misaligned valve head, leading to incomplete valve closure. 3. Weakened or lost elasticity of the valve spring, or a broken spring, which can also prevent the valve and valve seat from fitting tightly. The solution is: Based on the actual situation, inspect the fault, repair, adjust, or replace the relevant worn or damaged parts. Remove the cylinder head, grind the valves, check the elasticity of the valve springs, and readjust the valve clearance.
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