Replace the bearing to avoid the "second-hand car noise" quality analysis

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Replace the bearing to avoid the "second-hand car noise" quality analysis

Source: China Bearing Network Time: 2017-10-01
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First, the engine and its accessories noise This is due to the normal wear and tear of the internal components of the engine. If there is an abnormal event in the past; for example, the light leaking through the oil has not been discovered in time or leaked through the antifreeze Etc. The engine with such experience will have more noise; the size of the noise depends on the size of the incident. Second, the noise of the suspension system is attributed to the normal aging field; but the different users will have significant Different results. A large part is formed by the wear of the hub bearing or the damping of the damping fluid in the shock absorber. There are also many examples of the shock absorber leakage. Because the shock absorption function of the car is reduced The shock fluid and the spring are completed together; the loss of the shock absorber fluid will significantly increase the noise.
Third, the exhaust pipe noise is attributed to the normal aging field. Exhaust pipe of 10 years or 200,000 kilometers; because the bottom of the car body often touches the acid and alkali mixture such as muddy water; or the ability to leak due to rust; The noise at the tail is increased; this is usually noticeable.
4. Brake system noise If the brake pad is continuously used after normal wear and tear; the brake shoe is simply ground to the brake disc; the brake will show a sharp scream.
5. The body noise is due to the normal use of the whole year; it is formed by the looseness of some parts. The noise is related to the speed of travel. This is a problem of resonance. Other noises not listed above need to be paid more attention; Sweep; for example, the noise of the steering system, electrical noise, etc.
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