What to Do When the Edge of a Car Engine Belt Becomes Frayed?

3 Answers
DiLawson
07/29/25 6:23am
Belt fraying may not seem like a big issue, but if the belt shows signs of cracking, it should be replaced immediately. It is recommended to visit a 4S shop to check which part is causing the belt to fray or wear out. Below is relevant information: 1. Specific cause: Friction. This is often due to an unbalanced pulley, so the verticality and balance of the pulley should be recalibrated. 2. Engine: An engine (Engine) is a machine that converts other forms of energy into mechanical energy, including internal combustion engines (such as gasoline engines), external combustion engines (such as Stirling engines, steam engines), and electric motors. For example, an internal combustion engine typically converts chemical energy into mechanical energy.
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SanLillian
08/12/25 9:49pm
A few days ago, my own car had this issue—the edges of the belt were fraying, and honestly, it was quite concerning. I immediately took it to the repair shop for inspection. The mechanic said this is usually a sign of belt aging, possibly due to incorrect tension or debris stuck in the pulley. If not addressed promptly, the frayed parts could accelerate wear and eventually lead to belt breakage, which would have serious consequences, such as engine failure or damage to drive components. The repair advice was to first avoid driving too far, safely park the car, and have a professional technician assess it: if the fraying is minor, sometimes cleaning and adjusting the tension will suffice; but if the fraying is extensive, it’s safer to replace the belt outright. Replacing a standard belt isn’t expensive, costing just a few hundred yuan, but delaying could lead to major problems. From my driving experience, I’ve learned that regular checks on belt wear are crucial to avoid sudden breakdowns.
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VanGenesis
10/04/25 3:05am
I usually enjoy tinkering with my car. When I noticed the edges of the engine belt fraying, my first reaction was to turn off the engine and wait for it to cool before checking the belt tension. I pressed it by hand to see if it was too loose or too tight. If the fraying was only in a small section, I would gently clean off the debris with a brush; but if the entire edge was frayed, it meant the belt was nearing the end of its lifespan and needed replacement. Before replacing it, I would check the manual to confirm the model number. When aligning the belt with the pulley, I used a tension gauge to ensure accuracy—otherwise, improper installation could accelerate wear. During the actual operation, I made sure to have gloves and basic tools ready. The process is straightforward, but I’d advise beginners not to take the risk themselves. Belt fraying is often caused by poor engine bay hygiene or irregular maintenance. Key takeaway: maintaining a clean environment can prevent issues. DIY saves money, but if the belt shows cracks or unusual noises, it’s best to head straight to a professional shop for help.
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