Don't mean to sidetrack your thread, but hydrovac systems are dear to my heart , argh.
I have a 1953 6400 chevy, it does not get driven much so it seems I'm always messin' with the brakes. I bet I pump em 25 times just to get a pedal after its been sitting. It will stop fine but it will not hold a pedal. I can pump it up to a fairly hard pedal but after a few minutes it will go back to the floor. I'm always adding brake fluid, and have no idea wheres it's going? the rascal ( master cylinder) is always dry after sitting for awhile. There are no leaks from the master cylinder or wheel cylinders that I can see....
Thanks
Also have a 1966 60 series with a hydrovac system, oh joy
