How to Deal with Valve Noise?

[Monica]

The solutions for valve noise are as follows: 1. If the valve clearance is too large, simply adjust the valve clearance. If the camshaft or valve lifter is worn, replace the camshaft or valve lifter. 2. If neither of the above situations applies, then the issue may be with the engine oil. If the oil viscosity is too high, simply switch to a lower viscosity oil. If the oil level is insufficient, add more engine oil. 3. For valve noise, as long as the owner performs regular maintenance, such as changing the oil according to the maintenance manual and checking the oil level regularly, this problem rarely occurs.