The cause of the engine valve ring?
The cause of the engine valve ring?
A, due to the hydraulic valve lifter and produce gap between CAM (or valve seat). Generate most of the time due to hydraulic lifter wear too much clearance, cause a column within the oil pressure relief faster, need to change the hydraulic lifter; Crankcase oil level too high or too low.
B, untight seal.
C, mostly due to engine oil caused by the improper use.
D, fuel oil label not up to par, burning caused by unsafe valve, shaking should timely replacement of standard fuel oil.
