wetwilly.....thanks for your input. When you say one of the rubber lines may have collapsed, which lines are you talking about? The metal brake lines leave the MBCylinder and about a foot down they convert to a larger rubber line which goes downward toward the Hydrovac. You referring to these, or maybe some rubber lines "inside" the Hydrovac?

If you are referring to the rubber line below the MBCylinder, guess I can go to the Hydrovac and open the bleeder, and if nothing comes out, then there must be a clog from the MBC to the Hydrovac.....but my gutt tells me the lines are fine.

Hope that I dont have to rebuild the Hydrovac just yet.
dwight


Keep the rusty classics going.