The camshaft and crankshaft are both essential components in an internal combustion engine, but they serve different functions:

1. Camshaft:

– Function: Controls the opening and closing of the engine’s intake and exhaust valves.

– Operation: Rotates at half the speed of the crankshaft in a four-stroke engine.

– Location: Typically located at the top of the engine (overhead camshaft) or within the engine block (cam-in-block).

– Components: Includes lobes (cams) that push against valve lifters or rockers to operate the valves.

2. Crankshaft:

– Function: Converts the linear motion of the pistons into rotational motion to drive the vehicle’s wheels.

– Operation: Rotates at the same speed as the engine’s RPM.

– Location: Positioned at the bottom of the engine, within the crankcase.

– Components: Includes journals for the connecting rods, counterweights to balance the engine, and a flywheel to smooth out the power delivery.

In summary, the camshaft controls valve timing, while the crankshaft converts piston movement into usable rotational power. Both are crucial for the engine’s performance and efficiency.