Camshaft Pulley

Camshaft pulleys are critical components of the engine’s valve timing system, directly driven by the crankshaft via the timing belt or chain. These pulleys mount to the camshaft and dictate precise camshaft rotation relative to the crankshaft, controlling valve opening and closing events. Features commonly include hardened steel construction, precision machined timing marks for accurate installation, and often a profiled back surface for variable valve timing (VVT) systems. Width and tooth count are key specifications, varying based on engine design and timing requirements. Some designs incorporate oil passages for VVT actuator lubrication. Proper pulley alignment and secure mounting are essential for reliable engine operation.