Keeping tension on your timing chain is imperative for keeping your cams turning properly. If some slop develops in your chain because of a poor tensioner, the timing set can skip a tooth, causing catastrophic damage and potentially ruining your engine. These replacement can keep everything tight.
The chain runs against this tensioner and keeps your chains tight on the cam gears and crank. It makes sure the no teeth are missed and your engine is running. Quiets loud chains.
