Carter parts

Crankcase Parts: Essential for the Operation of your Engine

The crankcase is an important part of a scooter or motorcycle, which plays a crucial role in the protection and lubrication of the engine. In this article, we explain the function of the crankcase and the roles it fulfills to ensure your engine continues to function properly.

What is the function of the crankcase?

The crankcase is the enclosure at the bottom of the engine that protects and supports the engine's internal components. The crankcase is often made of aluminum or steel and is designed to support various vital functions within the engine block. Here are some of the main functions of the crankcase:

1. Protection of internal components: The crankcase protects the engine's internal components, such as the crankshaft, pistons, and gears, from dirt, dust, and external damage. Without this protection, the sensitive parts of the engine would wear out quickly and get damaged by external influences.

2. Storage of engine oil: One of the main functions of the crankcase is to store engine oil. The oil in the crankcase lubricates the moving parts of the engine, such as the crankshaft and pistons, so they can rotate smoothly without excessive friction and wear. The crankcase acts as a reservoir for the oil, which is pumped through the engine to lubricate essential components.

3. Heat dissipation: The crankcase also helps to dissipate heat from the engine. During driving, the engine's internal components generate a lot of heat due to combustion and friction. The crankcase acts as a heat conductor, dissipating excess heat to prevent the engine from overheating.

4. Support for engine components: The crankcase provides structural support for various engine components, including the crankshaft and gears. These components are held in place by the crankcase, which is essential for the stability and proper operation of the engine.

5. Sealing of the engine: The crankcase also helps to seal the engine, preventing fluids (such as oil and coolant) from leaking out. This prevents oil leaks, which would not only reduce the efficiency of the engine but could also cause environmental damage.

What are the functions of a crankcase?

In addition to its primary function of storing engine oil, the crankcase performs several other important functions that contribute to the operation and protection of the engine:

1. Lubrication of engine components: The crankcase ensures that engine oil is circulated through the engine. The oil is pumped up from the crankcase by an oil pump and spread over the moving parts of the engine, such as the bearings and gears. This lubrication system ensures that the components can rotate smoothly and prevents excessive wear due to friction.

2. Support for the oil filter: The oil filter is often located in the crankcase and ensures that the engine oil remains free of dirt and contaminants. The crankcase provides a seal around the filter, so the oil can be properly filtered before it reaches the engine components.

3. Mounting base for other engine components: The crankcase serves as a base on which other engine components are mounted, such as the cylinders, gearbox, and exhaust system. This makes the crankcase an essential part of the engine structure and it helps keep the engine compact and sturdy.

4. Vibration damping: During driving, the engine generates vibrations, and the crankcase helps to dampen these vibrations. This reduces the impact on the driving experience and prevents damage to sensitive parts of the engine.