Sounds like you did over charge it.Get a pressure tempature chart off the internet.Charge it up according to that chart. At best,your system will be acceptable. Your system was designed for r-12.It is not that 134a is not good. It is.The higher pressures that 134a uses,makes the expansion valve suspect,here.You need a new one that is for 134a. Unfortunately,to put it in, requires lots of expense. Remove the vent cover,up top, and look in and see if the expansion valve is shiny and new.If you got a new valve and it is properly charged, go for a drive on a rainy day. The water on the condenser will make your condenser seem larger than it really is.Liquid to air heat transfer is much better than air to air,like is normal,here.If the a/c cools better then, maybe consider duel condensers .If the compressor is in good condition,and there is no moisture in the system,that is about the best you can expect.Hope you only need a new expansion valve. |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.