Just bought my ‘46 and the former owner replaced all the brake lines, replaced the master cylinder, all 4 wheel cylinders and new brake shoes…..but he couldn’t ever get the brakes bled out. Now I’ve taken up the job and I can’t get them going either. Everything appears to be done right. There are no leaks. If you pump the brakes about 10 times, you finally get a pedal. In my old school shade tree experience, that indicates air in the lines. But I have bled them several times, and just can’t get them to work. What could I be missing???