If you're experiencing engine noise that you suspect is related to valves, the problem isn't with rocker arm adjustment. Possible causes include:
* Low oil pressure: Check your oil level and pressure. Low oil pressure prevents the lifters from functioning properly.
* Worn or failing lifters: Hydraulic lifters can wear out or fail, leading to ticking or knocking noises. Replacement is the solution.
* Worn camshaft lobes: A worn camshaft can also cause lifter problems.
* Incorrectly installed lifters: Though unlikely if the engine was properly assembled, a mis-installed lifter could be the issue.
Before replacing parts, thoroughly check your oil level and pressure. Low oil is the most common cause of lifter-related noises. If the oil is fine, then further diagnosis is needed, likely involving a mechanic. Trying to adjust rocker arms on this engine will not solve the problem and could potentially damage the engine.
