We had a mystery leak on a customer's van that we couldn't find until we
dropped the overhead unit (not a westy but the same under the skin).  It
was at the expansion valve.  The later vans have this aluminum block one
that I thought could never go bad.  However they epoxied the unit together
and over time the epoxy gives up.  The part that looks like a hat on the
top was separating from the lower part.  After we replaced that, the system
has been holding pressure and working great.  We have these expansion
valves on our site for not much money.  Let me know if you need one or if I
can help you in any other way.  In a westy you are going to have to take
apart the overhead cabinet to replace this valve.  That is why most folks
don't check there.

Ken Wilford
John 3:16
www.vanagain.com

On Wed, Nov 19, 2014 at 11:10 AM, David Bjorkman <ddbjorkman@verizon.net>
wrote:

> Hi All;
> I'm having A\C problems. I have a 87 Westy with a FAS Gen V engine with a
> new compressor, lines, etc. When I started to lose pressure I had dye put
> in the system to try to find the leak. The problem has gotten worse with
> time. When checking for dye, none could be found in engine bay, lines,
> front radiator or any place I could see. I am worried that the problem is
> in the overhead cabinet where nothing was done (ie: just connected new
> system to it, after flushing etc.). I have heard that replacement parts for
> that part of the system are hard to find. Can someone give me an idea of
> what's in there that can and cannot be replaced with new parts?  Info on
> where one can find them, especially the condenser, would also be helpful.
>
> Dave B.
>

--
Thanks,
Ken Wilford
John 3:16
www.vanagain.com