I have long had trouble with getting the key to turn in the rear
hatch cylinder.  It takes a lot of jiggling and moving in and out and
sometimes I have just given up.  So I decided to take a look at that
problem tonight.  Got the assembly out of the hatch and used some
carb cleaner on it.  Moved the key in and out a lot, sprayed some
more cleaner, repeat, etc.  Now I can't get it to turn at all.  It
did seem to feel crisper in there after this treatment, like the
tumblers were moving more freely.  I was thinking about taking the
cylinder out of the assembly that moves into the hatch and hits the
release.  Oh Vanagon lock experts, what say you?  Am I going in the
right direction?
Edward