Is the Valve Cover Gasket Leakage a Serious Issue?

1 Answers
Teri
07/30/25 7:41am
Engine valve cover leakage can affect engine lubrication, and in severe cases during hot weather, it may even lead to vehicle self-ignition. Therefore, if the engine valve cover shows signs of oil leakage, it should be inspected and repaired promptly. Causes of engine valve cover leakage: 1. Uneven screw tightening during assembly. If the screws are tightened unevenly, the resulting pressure will vary. Excessive pressure can cause the engine valve cover to deform, leading to oil leakage. 2. Aging of the valve cover gasket. When a car has been owned for too many years or has been driven for too many miles, aging of the valve cover gasket is a normal occurrence. Precautions regarding the engine valve cover: The engine valve cover primarily serves as a seal to prevent oil leakage. It should be inspected every 20,000 kilometers, and if there is any wear, it should be replaced promptly.
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