CSX 7000 Brakes

[tj1949]

Hello everyone,

I am the mechanic that Jim Maxwell is trying to help with this braking problem. I wanted to give you a little update on what is going on with this 7000 series Cobra.

We sold this car on consignment to a local customer. Being what this car was and the fact that is wasn't our's, we never drove the car. After the new customer took the car he complained that the brakes did not stop the car very well. Jim drove the car and agreed that they weren't very good. I put the car on the lift and had someone slowly press the brake pedal until I could no longer turn the rear wheels. Then I checked the front wheels which turned with ease. I took the car out for a drive and tried to lock up the brakes. It took a lot of pedal pressure to stop the car. I could lock up the rear brakes but the fronts didn't seem to help stop the car. This seemed to confirm what I experienced with the car on the lift. It does have Baer calipers, 2 piston front, single piston rear. Front master cylinder is an AFCO 7/8" and the rear is 5/8" Alcon.

I am still trying to resolve the problem. The front master cylinder main seal had a scored place in it and I found a small piece of metal in the cylinder. I decided to replace the whole cylinder instead of rebuilding it and after much bleeding to make sure that I had all the air out, I am still plagued with the same problem.
I could set here and type all night to tell you all the things that I have checked and done. And of course everyone that I have spoken to about this problem has never heard of it and are as befuttled as I am. I haven't given up and will update you soon.