[Adhor]

I am getting really really frustrated with my brakes right now and I'm not sure how to remedy the problem. Basically this is the situation- The first thing that happened I noticed less and less braking power then realized or thought that the problem was with the master cylinder. So after replacing the master cylinder it seems to work ok I say ok because the brakes worked but they seemed very low to the ground then after a few days it continued to go lower to the point where I only have about 40 percent total brake power apposed to the 100 percent I had two days earlier. Sorry for the huge message but really I don’t know what the problem is. Is it as simple as not bleeding it enough? Or do you think that the brake booster is bad, is it an air leak in something, or am I way off. Please any help is appreciated and its for a 1969 350 with disc brakes and drum in back thank you.

[Adhor]

I am getting really really frustrated with my brakes right now and I'm not sure how to remedy the problem. Basically this is the situation- The first thing that happened I noticed less and less braking power then realized or thought that the problem was with the master cylinder. So after replacing the master cylinder it seems to work ok I say ok because the brakes worked but they seemed very low to the ground then after a few days it continued to go lower to the point where I only have about 40 percent total brake power apposed to the 100 percent I had two days earlier. Sorry for the huge message but really I don’t know what the problem is. Is it as simple as not bleeding it enough? Or do you think that the brake booster is bad, is it an air leak in something, or am I way off. Please any help is appreciated and its for a 1969 350 with disc brakes and drum in back thank you.

[PonchoV8]

Did you bench bleed the master cylinder?

[Adhor]

We bled it after we put in the car. using the kit that came with it.