Brake bleeding pressure
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Joined: Jul 2019
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Brake bleeding pressure
I am getting ready to bleed my brakes, and have a hand pump type pressure bleeding pump and tank. Have checked to confirm that my cap fits the Porsche brake fluid reservoir.
My question is what is the max pressure used to pressurize the plastic brake fluid reservoir in the car? When I used this setup in my older BMWs, I was very wary not to pressurize the brake fluid reservoir more than about 5-10 psi, because I was concerned about damaging the plastic. But at those pressures, the fluid bleed rates were very slow, and I had to pump the brake pedal to get decent bleed rates, particularly from the rear brakes.
With the Porsche, which seems to have been designed for pressure bleeding, what pressures are folks using? I notice that in most procedures documented here, nobody pumps the brake pedal to assist in bleeding.
My question is what is the max pressure used to pressurize the plastic brake fluid reservoir in the car? When I used this setup in my older BMWs, I was very wary not to pressurize the brake fluid reservoir more than about 5-10 psi, because I was concerned about damaging the plastic. But at those pressures, the fluid bleed rates were very slow, and I had to pump the brake pedal to get decent bleed rates, particularly from the rear brakes.
With the Porsche, which seems to have been designed for pressure bleeding, what pressures are folks using? I notice that in most procedures documented here, nobody pumps the brake pedal to assist in bleeding.
