Date:         Mon, 13 Jun 2005 11:05:14 -0400
Reply-To:     David Bohannan <fjazzbass@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Bohannan <fjazzbass@GMAIL.COM>
Subject:      Re: 85 AC problems...pressure too high with small amount of
              refrigerant
In-Reply-To:  <001501c56d43$e62b4900$6400a8c0@masterpc>
Content-Type: text/plain; charset=ISO-8859-1

I think the problem was too little oil...

Drained and vacuumed the system, added an "oil charge" can plus 134
and it workee workee...low pressure on low side, high pressure on high
side...

At least for a couple days thus far.

Thanks to all for the advice...

Dave

On 6/9/05, Dennis Haynes <dhaynes@optonline.net> wrote:
> My bet is you have a bad expansion valve. The replacement valves are
> also designed for the R-134A.
> 
> Dennis
> 
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
> Of David Bohannan
> Sent: Thursday, June 09, 2005 1:29 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: 85 AC problems...pressure too high with small amount of
> refrigerant
> 
> Weird problem...maybe someone has an idea for me...
> 
> I have just replaced all my lines, replaced the dryer, flushed out the
> system, vacuumed the system, cleaned out the expansion valve and when
> charging the system after putting in a 2oz can of oil, 12 oz can of
> refrigerant with dye and on the next 12 oz can no more would enter the
> system....maybe we have 24 oz in total...
> 
> The guages are reading VERY high on BOTH sides of the system...in
> excess of 250 on high and well over 100 on the low...it cools, but I
> am afraid I may blow up something..so I am not running it until I get
> a proper diagnosis...
> 
> One mechanic I know said that the compressor may be bad...cracked
> valve? I am hoping not, but what else could be causing this problem???
> FWIW, the cooling fan comes on and is turning in the proper
> direction....bad new dryer??
> 
> Dave
> 85 gl "Baby bus"
> 
> 
>