How Often Should Engine Valve Seals Be Replaced?

[PrestonLynn]

Engine valve seals do not have a fixed replacement interval, but it is recommended to replace them every 20,000 to 30,000 kilometers. Below is relevant information about engine valve seals: Function of engine valve seals: They prevent engine oil from entering the intake and exhaust pipes, avoiding oil loss. They also prevent the leakage of the air-fuel mixture and exhaust gases, and stop engine oil from entering the combustion chamber. Symptoms of damaged engine valve seals: If the valve seals are damaged, the vehicle may start burning oil, emitting blue smoke during cold starts. Additionally, the engine may exhibit symptoms such as poor acceleration and vibrations. In such cases, the valve seals need to be replaced, although there is no specific mileage requirement for replacement.