Brake Problem Questions

[Robert Crandall]

I had a problem with a front caliper locking. I searched this forum and was happy to find my answer here:

http://67-72chevytrucks.com/vboard/s...d.php?t=752778

As recommended on that thread, loosening the bleeder screw unlocked the caliper, which identified a clogged flexible brake line, so I replaced both of the front flexible lines.

I still have a problem, so I started this new thread.

I had a very difficult time getting to the connection of the steel brake lines to the flexible ones inside the frame channel. I could not get the passenger side one to stop leaking with no pressure other than the weight of the fluid, but I thought that I did eventually get it stopped.

The test drive around the neighborhood went well, and 15 miles to work today also did well. On the way home I lost the front brakes, so I still have work to do. I presumed that all of the front fluid leaked out of the fitting that must not yet be tight. I did not get to go under the truck to look at it, and it will be next week before I will be able to work on it. I did check the master cylinder, and found the reservoir for the front brakes is still half full. I expected it to be empty because of having no front brakes.

So, I have the question: Why do I have half a reservoir of fluid, but no brakes?

Thanks.