Millions of vehicles have decoupler pulleys, heres how to replace them. This video is sponsored by Litens.
We show you what’s inside both OAP and OAD decoupler pulleys. This video is sponsored by Litens.
Most late-model engines have serpentine belt drives for the engine-driven accessories, and most people know that belts are a maintenance item that eventually has to be replaced. However, many people don’t know the spring-loaded automatic tensioner that keeps a serpentine belt tight is also a wear item. Consequently, the automatic tensioner may also have to be replaced when the time comes to change the belt.
Andrew Markel shows how decoupler pulleys overcome belt issues like slippage from speed variations to keep the engine running efficiently.