When my '90 Westy was converted to 134a, they replaced the rec./dryer and it
doesn't have a site-glass anymore. They also replaced the compressor, but I
don't know if it has a smaller pulley or not. You need to go by pressure and
outlet vent temperature.
Jerry
----- Original Message -----
From: "STEVEN PHILLIPS" <sphil@CITYNET.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, June 30, 2001 7:04 PM
Subject: AC Charge Question

> I use R134a in my 90 GL.  It seems not as cool as "normal". The site glass
> shows lots of little bubbles passing by - so many that it looks almost,
but
> not quite, frothy. I guess that means I am a little low.  I don't have a
> guage and don't know much about AC.  Should I just add R134 until the
> bubbles go away? Or is that too unscientific?