The protagonist we are talking about today-the brake master cylinder, is an important part of the car's braking system, and it acts as a valve (control device). But in fact, it is also a part with a high failure rate. When it is damaged, it will directly affect the braking performance of the whole vehicle. So, what are the symptoms of car brake master cylinder failure, and how to repair the brake master cylinder leak.
Brake master cylinderdamageofsymptom
Brake is soft:
When we step on the brake, if we feel that the texture of the brake is significantly softer and the stability of continuously stepping on the brake is reduced, it may be due to poor sealing of the master cylinder and wheel cylinder piston, or a certain brake pipeline. There was a rupture in one place, causing an oil leak.At this time we need to observe whether there isBrake FluidTraces of it.
The brake suddenly fails:
When the car is braking, if it feels that it suddenly fails for a moment, you need to observe itBrake fluidWhether there is a loss, then check the master cylinder, sub-cylinder and oil pipe for signs of brakes. If there is, it means that the brake master cylinder or the sub-cylinder has leaked very seriously, and it must be repaired in time. It is necessary to know that the consequences of brake failure are very dangerous.
Brake deviation:
If you feel that the brake direction is off, it may be due to the expansion of a piston of the master cylinder, of course, it may also be caused by uneven brake wear. However, this phenomenon must be solved in time, because the direction of the deviation is difficult to control, especially for cars without ABS brake anti-lock system, there is a certain degree of danger.
The brake pedal does not return or returns slowly:
If after stepping on the brake pedal, the pedal neither rises nor resists, it is what we call the brake non-return phenomenon. At this time, we need to check whether the parts of the master cylinder and the sub-cylinder are damaged. Secondly, this phenomenon may be caused by lack of brake fluid or oil leakage.
As for how to repair the leak of the brake master cylinder, it is actually relatively simple. First, remove the master cylinder and clean it. Then check if there are any signs of rupture in the air-closing valve. If so, put some butter on the rupture and install it. That's it. In addition, installing air filter elements on the two branch pipes of the master cylinder can solve the problem of always leaking the master cylinder. Buy a master cylinder repair kit of the same model. Of course, the most direct way is to replace it with a new one. But if there is a leak in the cup of the master cylinder, it needs to be replaced as a whole.
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