What is the reason why the engine valve is not closed tightly?
The following are the reasons for the untight valve closing:
1.The valve clearance is too small. The valve clearance must be adjusted to the proper range. The function of the throttle valve is specially responsible for inputting air into the engine and discharging the exhaust gas after combustion.
2.There is too much carbon in the valve contact area. The throttle should be cleaned regularly. When the car is used for a long time, carbon will accumulate on the accelerator.
3.The seat ring is deformed. Replace with a new one. Improve the service life of the engine to withstand high-speed impact, facilitate engine maintenance and replacement, and seal the engine valve.
4.The valve spring is faulty, check and repair it. The valve spring is spiral and is wrapped by spring rod steel wire. There is a certain space between each coil of steel wire for expansion and contraction.
5.If the valve top is deformed, check the deformation of the valve top. If the deformation exceeds the allowable limit, replace the valve top with a new one.
6.The valve rocker arm is deformed and needs to be replaced with a new one. The valve rocker arm is used to cooperate with the camshaft to open the valve in time to complete the intake and exhaust of the engine.
7.When the engine is working, high-speed impact and friction will occur between the valve and valve seat ring, and wear is inevitable. However, if abnormal wear occurs, it will lead to early failure of the machine components, which will lead to loose sealing of the valve. Replace worn parts in time.
