Hidden mechanical risks: On some engines, a VVT solenoid trouble code may actually indicate rocker arm or camshaft wear, not just an electrical fault. Common failure signs: Symptoms include check ...

The rocker arm employs the use of a fulcrum or pivot to increase the cam lift by a given ratio. That increase in lift is the result of moving the pushrod pivot point closer to the fulcrum. That ...

In the valvetrain of your typical pushrod engine, the rocker arm is a critical component that also is an excellent tuning device. To properly tune with rocker arms, though, you need to understand how ...