Brake Pressure Control Valve

Front-to-rear braking action is balanced by a brake pressure control valve installed in series with the master cylinder and rear wheel cylinders. The valve is located just below the master cylinder. The installation angle is critical because the deceleration rate will determine the effectiveness of the valve in controlling rear brake pressure.

Under heavy braking, the front of the vehicle will drop due to weight transfer. As the vehicle noses down, the change in body angle causes a ball weight within the valve to roll forward. As the ball changes position, its position and valves will regulate pressure from the master cylinder to the rear brakes.