Alas, brake discs don't last forever. As a result of friction, the surface of an important part is gradually erased, resulting in the formation of an edge. It, in turn, causes the appearance of squeaks at the time of braking. You can get rid of the unpleasant phenomenon by turning discs. At the same time, not every driver understands that you can make a groove even in your garage with a minimum set of tools.
Important: this method is used by "garage craftsmen". You should implement it yourself at your own peril and risk. The method of such a groove NOT SAFE. In the process of working with the grinder, do not forget about using personal protective equipment.
Is it possible to remove the edge on the brake disc without dismantling the part? The answer is yes. But it is worth noting right away that this operation is by no means safe. Therefore, it is worth resorting to this method only in case of emergency, when there are simply no other options for solving the problem. To work, you need nothing at all: a jack, a wheelbarrow, a grinder, a petal disk. The first step is to raise the drive axle of the machine. To ensure the safety of the work process, do not forget to put wooden blocks. Next, use the wheel wrench to remove the wheels.
After that, the traction control system is turned off in the car and the engine starts. 5th gear is engaged. This is done to quickly rotate the wheels. Next, you need to grind off the edge from the front and back of the brake disc. This is done using a grinder with a petal disc installed. The whole procedure takes approximately 2 minutes. It turns out very neat and even.
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Are there any drawbacks to this method? Yes there is. Once again, it is worth repeating that the grinding method is potentially traumatic. The greatest threat is posed by the part of the operation where the reverse side of the disc is turned. Another disadvantage is that you can only remove the edge in this way from the drive wheels.
If you want to know even more interesting things, then you should read about 5 most affordable cars in Russia, only from the salon.
Source: https://novate.ru/blogs/270422/62839/