Common Camshaft Problems

Because the camshaft is a solid steel component, it isn’t prone to wear or breakage. In most engines, other parts will wear out before the camshaft. Still, there are a few common camshaft problems that might arise.

· Worn Cam Lobes (also called “wiped out” or “flogged”) refers to cam lobes that have been worn down. Worn cam lobes won’t open the valves as much as intended, leading to poor engine performance and cylinder misfiring. If this affects the HPFP, insufficient fuel pressure will lead to higher emissions and random misfiring.

· Worn Lifters do not refer to an exclusive camshaft problem, but can be driven by the camshaft. A worn lifter won’t lift the valve as much as inteneded, if at all, and is typically heard as a clattering or tapping in the valve cover.

· Broken Camshaft refers to catastrophic failure of the camshaft. This could be a manufacturing defect or be caused by the camshaft seizing. In pushrod engines, a broken camshaft could significantly damage connecting rods, cylinder block, pistons, or the crankshaft. In interference engines, a broken camshaft could damage the cylinder head, valves, or pistons.

All three of these problems are caused by lack of proper engine maintenance. Prevent camshaft issues by getting regular engine oil changes with a quality oil, adhering to manufacturer recommendations regarding oil change interval, oil type, and oil viscosity, and avoiding engine overheating.