What Causes Belt Noise?
1 Answers
Excessive wear on the belt can also cause noise. Belts are made of rubber, and as they age, their friction decreases, making it difficult to effectively transfer power. This can lead to slipping, and after some time, the heat generated from friction softens the rubber, producing noise. The specific reasons for engine belt noise are as follows: 1. Wear and Smoothness: This occurs when the contact surfaces of the belt and pulley become too smooth. This usually happens when the engine speed changes rapidly, and sometimes increased load on the belt-driven accessories can also cause belt noise. 2. Timing Belt Noise: This is the sound produced by the timing belt rubbing against the timing cover. Such issues may lead to premature damage to the timing belt. If the belt breaks, it can damage the engine valves, requiring major repairs.