On Thu, 9 Jan 1997, Rocko Flamefart wrote:

> THHBBPT!  ACK! (snip) > i've had a bad cap on both my '85 and the '87
that allowed flowage both > ways.  me thinks various concoctions of
"Radiator Powders" gum up the > workings of the cap :( > > -dan

      I have had the same resaults.
      What I have found is that bars leak or solder seal etc., will
      seal leaks in the rad.  but will cause the
      Rad. cap on the Vanagon to leak pressure! You got it right!
      
                                             Eric Zeno