(1) Check that the shock absorber has no oil
Slight oil leaks belong to normal. If the oil leakage is severe, it is mainly due to the wear or damage of the oil seal, the pad is broken or screwed. The oil seal, liner, and fastening screw should be replaced. The general shock absorber is not repaired and must be replaced.
(2) Check if it is determined whether the damper is working properly.
In the absence of a shock absorber performance test bench, it is generally used to identify the quality of the damper.
When the car drove on a worse road for a while, touched the shock absorber with hand, there is a warm heat. If it is not hot, it indicates that there is no resistance, and it is no longer affected.
Automotive shock absorber check method
If the shock absorber makes an abnormal sound, the damper is damaged and must be replaced.
If the temperature of the two shock absorbers is low, the difference is large, then the low resistance is small or no resistance, which is generally deficient or valve part damage, etc., should be replaced.
(3) Checking the performance of shock absorbers.
For cars, you can check on the car
In the workshop, several people can use the bumper for force
First use the force of the vehicle body on the shock absorber, vibrate a few times, after loosen, if you can vibrate more than twice, indicate that the energy efficiency is not reduced.
When the check is removed, the shock absorber should be fixed, and there should be certain resistance when moving the piston rod up and down, and the upward resistance is larger. If the resistance is too large, the piston rod should be checked. If there is no resistance, it means that the front damper damper oil has leaked or expired and must be replaced.