What Causes the Ticking Sound of Valves?

[DelAnthony]

The causes of valve ticking sound: 1. Excessive valve clearance, severe wear of the camshaft or valve tappet; 2. Excessive oil viscosity and insufficient oil volume. Valve noise in the engine will increase the noise of the car engine, but it has no direct impact on the engine's service life. If the valve clearance is too large, adjusting the valve clearance can solve the corresponding problem; if the camshaft and valve tappet are worn, they need to be replaced; in the case of excessive oil viscosity, simply replace it with oil of lower viscosity; when the oil volume is insufficient, oil should be added. Although valve noise in the engine is not a serious problem, it can affect the comfort of the ride while driving. If any car abnormalities are encountered, they should be dealt with promptly to avoid more significant car failures and ensure driving safety.