What are the causes of valve burning?

[DanteLynn]

The causes of valve burning are: 1. Simultaneous increase in sealing surface temperature and local pressure between the valve and seat leading to distortion and carbon deposits; 2. Improper valve clearance adjustment or excessive wear; 3. Dirty gasoline, poor operating environment, prolonged high temperatures; 4. Poor valve material or excessively high exhaust temperature. The valve consists of a valve head and stem, and its function is specifically responsible for introducing air into the engine and expelling the exhaust gases after combustion. Usually, car owners can use the "hanging bottle" method for cleaning. The hanging bottle is similar to the form of a hospital IV bottle. The cleaning solution is injected into the valve, resulting in better cleaning effects without the need to disassemble the car engine, making it an effective cleaning method.