My Pro Training manual for the Digifant (don't know the model dates it
covers) mentions a "breather valve" on the crankcase that controls recycled
emissions according to manifold pressure - sounds like the PCV valve I'm
familiar with.  But my '87 2.1 only has the "vapor separator" - the large
cylinder that bolts to the crankcase with 1" air hose back to the air
plenum.  i.e., there is nothing inside that cylinder - it is empty (there is
a restrictor plate with 5.5 mm hole, but no valve, inside the "vent line
heating element" in the 1" air line between the cylinder and the air
plenum).  Is there supposed to be a "breather valve" on mine, or was it only
on earlier models?

With apologies for so many questions lately - I'm trying to learn how these
vanagons work as a 6 mo. owner.

Jim Creech