How the shock absorber solves the noise problem of old cars
Time: 2022/1/3 16:00:16    |    Hits: 402    |    
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There are a lot of car owners. It’s shy to buy a new car with cysts. You can also choose to buy a second-hand car. However, how can we deal with the noise problem of second-hand cars? Shock absorbers may be a good choice! The editor will give you an analysis of the cause of noise !
Exhaust pipe noise: belongs to the category of normal aging. Exhaust pipes of about 10 years or 200,000 kilometers, because the bottom of the body is often exposed to muddy water and other acid-base mixtures, or there is the possibility of air leakage due to rust, which increases the noise at the rear of the body. This is generally obvious. come out. The solution is to replace the whole or part of the exhaust pipe, and the noise can be eliminated immediately.
Engine and its accessories noise: This is caused by the normal wear and tear of the internal components of the engine due to age. If there has been an abnormal accident in the past, for example, the oil has leaked and the oil has not been detected in time or the antifreeze has leaked. The noise of the engine that has experienced this will be greater, and the magnitude of the noise will vary depending on the magnitude of the accident. The solution is to replace some or all of the engine's moving parts, such as connecting rods, connecting rod bushes, pistons and piston rings. It is also caused by improper installation or long-term wear and tear of accessories such as some belts outside the engine.
Brake system noise: If the brake pads continue to be used after normal wear, the brake shoes are likely to be worn to the brake disc (that is, the phenomenon of iron hitting the iron), and there will be very harsh screams when braking. The solution is to replace the brake pads (the brake discs should also be replaced if they are worn).
Suspension system noise: Although this belongs to the normal aging category, different users will have significantly different results. A large part of it is caused by the wear of the wheel hub bearing or the reduction of the damping capacity of the shock absorber fluid in the shock absorber. There are also many examples of light leakage from shock absorber fluid. Because the damping performance of the car is achieved by the damping fluid and the spring, the loss of the damping fluid's ability will significantly increase the noise. The solution is to go to the car dealer to repair, change the wheel bearing or shock absorber, etc.