Charging R134a is a major pain.  What I have found is that if you get a
pan of hot water and sit the refrigerant can in it while you are
attempting to charge the system it will make the charge go much faster.
Having the compressor on, really doesn't seem to have much effect, and
for newer vans (86-91) the compressor will not kick in until you have a
decent amount of pressure in the system (they have a low pressure shut
off switch).  Even with the hot water you are looking at between 45 mins
to an hour to charge four cans into the system.  Ridiculous!  I can
charge Freeze-12 or R-12 into the system (same amount) in 10 mins.

Hope this helps,
Happy Birthday to Robert Cardo!  Since he is made up, I just made up his
birthday!  It is today!  Happy Friday Ter.

Ken Wilford
John 3:16
www.vanagain.com

Robert Cardo wrote:

>The engine should be at fast idle as you introduce more refrigerant into
>the system.
>Always.
>
>RC
>
>
>