What is a crankcase?

The crankcase is an important part of the engine, located at the bottom of the engine, mainly used to store lubricating oil, provide lubrication and cooling for the engine. It also houses the crankshaft, flywheel and other components, and plays a supporting role.

The main function of the crankcase is to provide lubrication and cooling to the engine, while storing lubricating oil. Its structure usually includes oil sump, crankshaft housing, oil filter, oil plug, oil pipe and other parts, of which the oil sump is the lower part of the crankcase, used to collect the oil inside the engine to prevent oil leakage. The crankcase is the upper part of the crankcase, which is usually made of aluminum alloy or cast iron and has good strength and corrosion resistance.

The internal structure of the crankcase includes oil holes, oil channels and oil pads, among which the oil holes are used to connect the oil pan and the crankshaft case, the oil channels are used to transport the oil from the oil pan to the crankshaft case, and the oil pads are used to seal the gap between the crankshaft case and the oil pan to prevent oil leakage.

The sealing of the crankcase is very important because it directly affects the normal operation of the engine. If the crankcase seal is not good, it will lead to oil leakage, which will affect the lubrication effect of the engine, and may even lead to engine damage. Therefore, it is necessary to check the sealing performance of the crankcase regularly.

In general, the crankcase is an important part of the engine, which not only provides lubrication and cooling for the engine, but also plays a supporting role. During use, it is necessary to check the sealing performance of the crankcase regularly to ensure the normal operation of the engine.