👉 A crankcase is a part of an internal combustion engine where fuel and air are mixed to form a mixture that is ignited. The crankcase is made up of several components such as an intake manifold, spark plug, cylinder head, piston, valves, camshaft, and connecting rod. This section of the engine is responsible for distributing the fuel into the cylinders, igniting the combustion process, and delivering power to the wheels.