Alistair and Michael - thanks for the great replies (with pics no less).  I
should not post when I'm too tired I suppose, because I was not nearly
specific enough.  The spring I am talking about is the small spring on the
end of the lock cylinder, inside the handle.  It returns the cylinder to the
neutral position and is the last part to come out, first to go back in.

I am trying to re-key a spare cylinder to my key set so my sliding door will
lock/unlock from the outside.  I was sure (at least last night) that somone
had provided a link to a diy on the cylinder, including that spring.  A
picture is stuck in my mind but not well enough to make sure this will
work.  There are several ways that spring can go in it seems.  Sorry for the
rambling text, but I shouldn't post so soon after I wake up, either.....
:-)

--
Alan Felder
Austin TX
82 Diesel Westy