Tromper wrote:
>
> Hi folks,
>
> This is getting strange, my brakes about once every 3 months suddenly
> go almost to the floor but then pump up fine and firm, and don't but me for
> another quarter.  Any ideas??
>
> Tromper
> 1982 Dieselfant II
> "The Manatee"
>
> "Curiosity Kills more Mice then Cats."

Sure sounds like the master cylinder.  I would recommend buying a
rebuilt or new one.  I tried rebuilding one myself and it blew out
during a panic stop on the Kennedy expressway.
  Don't "Tromp" them brakes too hard.  ;-)

Larry A.
Chicago