Engine Valve Stem Oil Seals

Replacement Parts > Engine > Gaskets and Sealing Systems

Engine Valve Stem Oil Seals

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What is an engine valve stem oil seal?

An engine valve stem oil seal is a rubber seal that is located between the rocker arm and the valve stem. Its purpose is to prevent oil from leaking out of the engine.

How do I know if my engine valve stem oil seal is faulty?

If your engine valve stem oil seal is faulty, you may notice oil leaking from the engine, or smoke coming from the engine. You can also perform a visual inspection of the seal for signs of wear and tear.

Can a faulty engine valve stem oil seal cause damage to my engine?

Yes, a faulty engine valve stem oil seal can cause oil to leak out of the engine, leading to decreased engine performance and possibly engine damage.

How do I replace an engine valve stem oil seal?

To replace an engine valve stem oil seal, you will need to:

  1. Disconnect the negative battery cable.
  2. Remove the valve cover.
  3. Unscrew the valve stem oil seal and replace it with the new seal.
  4. Reinstall the valve cover.
  5. Reconnect the negative battery cable.


How often should I inspect my engine valve stem oil seal?

It is recommended to inspect your engine valve stem oil seal every 6-12 months as part of routine maintenance.