Never ending braking problem
Thread Starter
2nd Gear
Joined: Apr 2006
Posts: 2
Likes: 0
Never ending braking problem
1981 928, Auto, 46k miles
I hope someone can help me because I'm running out of things to fix on my braking system. Recently, I have replaced the Master cyclinder, vacuume check valve, and new pads all the way around. I then took the car to the local brake place and had them bleed the system. After all of these repairs the pedal still travels to the floor and I have to pump the brakes to get the car to stop. My Rear rotors are worn down below turning specs. Is this why the pedal goes to the floor? Will changing the rotors really help?
I hope someone can help me because I'm running out of things to fix on my braking system. Recently, I have replaced the Master cyclinder, vacuume check valve, and new pads all the way around. I then took the car to the local brake place and had them bleed the system. After all of these repairs the pedal still travels to the floor and I have to pump the brakes to get the car to stop. My Rear rotors are worn down below turning specs. Is this why the pedal goes to the floor? Will changing the rotors really help?
Drifting
Joined: Aug 2003
Posts: 2,259
Likes: 3
From: Camarillo, CA, USA
The master brake cylinder is difficult to prime while in the car but can be done with the master brake cylinder bleed screw. A normal install includes an out of car priming with brake fluid.
Unfortunately, you will need to subsequently bleed the brake calipers.
Unfortunately, you will need to subsequently bleed the brake calipers.
Rennlist Member
Joined: Oct 2004
Posts: 10,717
Likes: 58
From: Southern Alberta, Canada
There was a recent discussion on bleeding the m/c first before moving to the front left, front right, rear left and rear right calipers..........somewhat against norm but was published by Porsche themselves and submitted to the forum by one of the 928 gurus.
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