What is the reason for the clicking sound of modern Shengda valve?

Now I'll give you some information about "What is the reason why the valve of Hyundai Shengda makes abnormal noise?" For the related contents of, please refer to the following related contents:

The reasons for the abnormal sound of Shengda valve cover are as follows:

1, worn groove or flange of valve spring retainer ring is broken;

2, the valve root clearance is too large or inconsistent;

3. The valve adjusting screw is worn and deviated, and the pin nut is loose;

4. Due to the clearance between the hydraulic valve tappet and the cam (or valve seat). In most cases, the clearance is caused by the excessive wear of hydraulic tappets, which leads to the rapid release of oil in the tappets and needs to be replaced.

5, crankcase oil level is too high or too low, need to check the engine oil level;

6, valve guide wear. Need to check or replace the valve guide;

7. The tappet is dirty and needs to be cleaned;

8. The valve seat or valve cone is not round. Need to grind the valve and valve cone;

9. Improper selection of oil viscosity, switch to oil with higher viscosity;

10, the oil pressure is low. Please check the reason for the low oil pressure.