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Be sure to replace the accessory buffer glue when the shock absorber is repaired

The buffer glue and dust jacket of the automobile shock absorber are commonly known as "shock absorber repair kit", which, as the name suggests, is the accessory that should be used when the shock absorber is repaired and replaced. However, in practice, many repairmen are not willing to use new accessories, the existence of small accessories do not get in the way of the idea, after replacing the new shock absorber movement, still use the old buffer glue and dust jacket of the original car.

What is the origin of this buffer glue (also known as buffer block) and what does it do? Where is it "long" in the shock absorber? The following figure reveals its position: The material of the buffer glue is polyurethane foam, which has the function of buffering and anti-impact, but it has a service life, and it will crack, break and become powdered after the service cycle.
In the process of driving, the up and down movement of the shock absorber, the high temperature generated by the subsequent up and down movement of the piston rod, the powder of the buffer glue will stick and burn, and then scratch the oil seal leading to oil leakage, abnormal sound and other problems, shortening the service life of the new shock absorber. We have encountered many such after-sales problems in our work.
Therefore, it is recommended that when replacing a new shock absorber movement, the buffer glue and dust cover should be replaced together to avoid rework and the occurrence of the above faults. Of course, the best choice for shock absorber replacement is to replace the shock absorber assembly.