Why is there air in the brake system again a few days after bleeding?

1 Answers
ElizabethDella
07/29/25 4:28pm
Brake bleeding not being completely effective can be attributed to the following reasons: When the master cylinder returns but the wheel cylinder does not, a certain vacuum is created in the pipeline, allowing air to enter if the wheel cylinder rubber seal is not tight. Below is some related information about brakes: 1. Introduction: Braking, also known as deceleration, refers to the action of stopping or reducing the speed of moving locomotives, vehicles, other means of transport, or machinery. The general principle of braking involves fixing a wheel or disc on the high-speed shaft of the machine and installing corresponding brake shoes, bands, or discs on the machine base, which generate braking torque under external force. The brake device, also known as a decelerator, is a mechanical braking device that can slow down the speed. 2. Purpose: To reduce speed or bring the vehicle to a stop. The principle of braking is to convert the kinetic energy of the vehicle into heat energy, which is then dissipated. The kinetic energy comes from the power provided by the engine, which requires fuel combustion to generate.
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