What is the belt outside the engine called?

[LaJesse]

The belt outside the engine is called the engine drive belt, which mainly drives the generator, water pump, and power steering pump. It generally needs to be inspected and replaced every 60,000 kilometers. Introduction to the engine: An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines usually convert chemical energy into mechanical energy. History of the engine: An engine can refer to both a power generation device and the entire machine including the power device (e.g., gasoline engines, aircraft engines). The engine was first developed in the UK, so the concept of the engine also originates from English, with its original meaning referring to "a mechanical device that generates power."

[AbelAnn]

Last month I just had my car repaired. That belt spinning outside the engine is usually called a serpentine belt, because it winds around several pulleys like a snake, driving the alternator, AC compressor and power steering pump, eliminating the need for separate belts for each component. I once experienced it suddenly snapping on the highway, resulting in AC failure and skyrocketing coolant temperature, nearly causing an accident. Veteran drivers recommend checking it regularly and replacing it every 50,000-60,000 kilometers, otherwise rubber aging or cracks could lead to a complete breakdown. If doing it yourself, it's located at the front of the engine - easy to find but wear gloves to avoid burns. The part costs around 200-300 yuan.

[OmarDella]

I've been into car modifications for many years, and that belt is commonly called a serpentine belt. It's one of the key components of the engine, connecting externally to drive multiple devices. I remember one time when it was severely worn, the car stalled directly at a traffic light. After checking for a long time, I found out the alternator wasn't charging. During regular maintenance, I use a wrench to open the protective cover for inspection, checking for any surface cracks or looseness. I recommend replacing it every 60,000 to 70,000 kilometers—don't wait until it breaks to regret it. Its position makes it prone to dust and water, so a shorter lifespan is normal. Getting it replaced at a repair shop might cost around 400 to 500 yuan, but if you want to save money, doing it yourself isn't hard—there are tutorials online.

[DeTyler]

That belt is called a serpentine belt, located around the engine, mainly responsible for driving devices like the alternator. After driving for a few years, you'll realize how important it is. I once had it snap on me, the AC stopped working and the car started smoking. Beginners should learn some basic maintenance, like periodically opening the hood to check if the belt is tight, and addressing any unusual noises immediately.