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Your location: Home > Related Articles > How to easily judge and repair shock absorbers when there are dents in the car أداة الاختبار –

How to easily judge and repair shock absorbers when there are dents in the car أداة الاختبار –

Author:QINSUN Released in:2023-09 Click:27

How to judge and simply repair shock absorbers when there are bumps in the car

In everyday driving, it is inevitable that you will go through ditches and bumps, especially on the stretches of particularly bumpy road. At this time, the role of the car\'s shock absorbers will be reflected. Upon exit, you will not feel any obvious vibrations. If you feel a real bump like you are riding a bike, then you need to think and check the shock absorber.

In order to quickly dampen frame and body vibration and improve the smoothness and comfort of the car, car suspension systems are usually equipped with shock absorbers, which are currently widely used in cars. . This is a two-way acting cylinder shock absorber.

The shock absorber itself is far from providing us with just a little comfort. It is also responsible for the absorption of chocs of the entire vehicle component, otherwise the car would have been bumpy and broken.

The shock absorber is a vulnerable part when using the car. The working quality of the shock absorber will directly affect the stability of the car and the life of other parts. Therefore, we must use shock absorbers that are always in good working order. The following methods can be used to check if the shock absorber is working well.

So, the editor of Kuche Wuyou will introduce you how to distinguish the fault and the good of the shock absorber?

First: Stop the car after driving 10 km on a bad road and touch the shock absorber shell with your hands. If it is not warm enough, it means that there is no resistance inside the damper and the damper is not working; At this time, a suitable lubricating oil can be added, then test itt is performed. If the outer shell is hot, it means that there is a lack of oil inside the shock absorber, and enough oil should be added; otherwise, the shock absorber has failed;

Second: use force. Press the bumper button, then release it. If the car jumps 2-3 times, it means the shock absorber is working well; when the car drives slowly and brakes urgently, if the car vibrates violently, it means that there is a problem with the shock absorber;

Finally: remove the shock absorber and place it upright, clamp the lower end connecting ring on a vice and pull the shock absorber rod several times. At this point, there should be stable resistance and no upward resistance. It should be greater than the resistance when you press down. If the resistance is unstable or has no resistance, there may be a lack of oil inside the cushioningvalve or valve parts are damaged, and the parts must be repaired or replaced.

What kinds of issues or failures will occur?

First: After determining that the shock has a problem or is broken, you should first check to see if the shock is leaking or showing signs of old oil leaking.

The oil seal and seal g baskets are broken and damaged, and the oil storage cylinder head nut is loose.

The oil seal and gasket may be damaged and invalid, and new seals need to be replaced. If the oil leak still cannot be eliminated, the shock absorber must be removed. If it seems stuck or the weight is uneven, also check whether the gap between the piston and the cylinder is too large, whether the shock absorber piston connecting rod is bent, and whether the piston rod is bent. Check for any scratches or t-marksreaction on the surface and the cylinder.

Second: If the shock absorber does not leak oil, check the shock absorber connection pin, connecting rod, connection hole, rubber, bushing, etc. Damaged, unsoldered, cracked or dislodged.

Third: If the above inspection is normal, the shock absorber should be further disassembled to check whether the corresponding gap between the piston and the cylinder tube is too large, whether the cylinder tube is stretched, if the valve seal is good and if the valve disc is in good condition. Whether it fits tightly to the valve seat and the shock absorber extension spring is too soft or broken, repair it by grinding or replacing parts depending on the situation.

Additionally, the shock absorber will make noise during actual use. This is mainly caused by the shock absorber colliding with the leaf spring, frame or axle, the rubber pad being damaged or falling off, and theillance of the shock absorber. If the dust cylinder is deformed or caused by insufficient oil, the cause should be investigated and repaired.