Toyota Brake Master
Distributor
- As you pump the pedal, it forces the fluid into the calipers/wheel cylinders (or clutch bearing for a clutch master cylinder). This works really well because fluid does not compress. Air, however, compresses quite easily, so any air in the braking system will reduce the hydraulic pressure by large amounts
- If the brakes are operating properly, the pressure will be the same in both circuits.
