Brakes - bit of a weird one?

[RallySnake]

Beb,

I have a similar problem. I believe that it is heat related. A couple of my steel brake lines cross over the frame near the headers. When I sit in traffic or creep into a checkpoint very slowly, my brake pedal feels spongy and sinks much more than normal. After I get moving and things cool down, it's just fine again. I think the humidity absorbed by the brake fluid may be boiling. This problem gets better after I replace all the brake fluid. I do this every year, or so. I have tried wrapping the lines with heat reflective material and that helps some. One day, I'll get energetic and reroute the lines farther away from the headers. That will require drilling holes through the frame and I'm not excited about that.

Maybe, this is your problem, too?

Paul