AG Mechanics CDE Practice Exam 2026 – The Comprehensive All-in-One Guide for Success

The camshaft is driven by a gear on the crankshaft. A belt or a chain could potentially slip or break, causing the timing of the engine to be off and potentially causing further damage. A pulley would not be efficient in providing enough torque to turn the camshaft. A gear is specifically designed to interlock with other gears and provide a more stable and sturdy connection.