pk belt fan belt for auto

The operation of a tensioner belt pulley is relatively straightforward. The pulley itself is mounted on a spring-loaded arm. As the serpentine belt moves, the tensioner pulley applies pressure to keep the belt tight against the various accessories it drives. The spring mechanism allows the pulley to adjust automatically to accommodate changes in belt tension, which can occur due to wear, temperature fluctuations, and adjustments in engine performance.


...

A non-interference engine is designed in such a way that there is enough clearance between the moving parts (the pistons and valves) such that if the timing belt were to fail, these components would not collide. This design feature is particularly advantageous as it provides a safety net for the engine in the event of a timing belt failure. In contrast, an interference engine does not afford this luxury; failure of the timing belt in such engines typically leads to catastrophic damage, including bent valves and damaged pistons, which can result in extensive repair costs.


...