Getting Your Rocker Arm Adjustment Just Right

If you're hearing a rhythmic clicking or tapping coming from under your valve cover, it's probably time for a rocker arm adjustment. It's one of those maintenance tasks that can feel a bit intimidating if you've never done it, but honestly, once you get the hang of the rhythm, it's actually pretty satisfying. That "sewing machine" sound an engine makes when the valves are perfectly set is a beautiful thing, and it can make a world of difference in how your car actually drives. ...

February 21, 2026 · 7 min · Glenn Smith