It happens that even having a vehicle for years you may not understand the technicalities and functions of some of its major parts and components. For instance, the piston ring and its purpose is unknown to a majority of professionals although they spend a major chunk of their life under the vehicle. Next is the engine rocker arms rocker shaft. Here the rocker arm plays a key role in transmitting the camshaft movement towards the exhaust and intake of the engine. It’s a process that begins upon the direct contact of the tappets. The racket on one side is tapped on the tappet whereas its other side is linked to the intake and exhaust valves. When triggered the rocket arm is lowered on one of the sides allowing the value to get fresh air and fuel for the combustion process to occur. What do you think about it?