How Often Should the Valve Stem Seals in a Car Engine Be Replaced?
1 Answers
Car engine valve stem seals should be replaced every 20,000 to 30,000 kilometers. As one of the critical components of the engine valve assembly, they play a vital role. Valve stem seals prevent engine oil from entering the intake and exhaust pipes, avoid oil loss, and also prevent the leakage of the gasoline-air mixture and exhaust gases, thereby stopping the engine from burning oil. The primary material of valve stem seals is fluororubber. Over time, rubber products can age and harden. Therefore, to avoid a series of failures caused by hardened valve stem seals, regular inspection and maintenance of automotive components are necessary. If the valve stem seals are damaged, they should be replaced promptly.