Date: Sun, 25 Jun 2006 15:30:04 -0400
Reply-To: robert shawn feller <carboncow@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: robert shawn feller <carboncow@GMAIL.COM>
Subject: Re: how do you test and a/c compressor?
In-Reply-To: <cf4df96f0606242004t1402810g100e1a6fd583a6af@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Robert and others...
We tossed gauges on the a/c today. Although its been a month since we topped
it off here is what is shown today with the compressor engaged.
lowside: 35-40
highside: 0
even if it was low on refrigerant I would expect some high side pressures.
any thoughts here before i go further and how to test?
bad compressor
blocked high side (evap or most likely x-valve?)
I don't know if we'll have time today but I'm going to pull the new
filter/dryer off then apply suction/pump to both high and the low side and
see if we can tell if there is flow at those open ports.
Shawn
On 6/24/06, robert shawn feller <carboncow@gmail.com> wrote:
>
> Mine does show backwards too, but I didn't reference the book for my
> needs. I just new from experience which was the suction (low) and high side.
> thanks for the input...
>
> It's been serveral weeks since I played with the a/c system, so the gauges
> go back on tomorrow as I try to figure this out. I'll have some specific
> readings...that may tell us what to look for.
>
> Shawn
>
>
> On 6/24/06, Robert Fisher <refisher@mchsi.com> wrote:
> >
> > You do have the right ports, right? They're labeled backwards in the
> > diagram
> > in the Bentley on 87.2, though they _may_ have updated that in recent
> > printings... the high side is the hose labeled '10' that runs between
> > the
> > dryer and the evaporator in my edition.
> >
> > Good luck,
> > Robert
> >
> > ----- Original Message -----
> > From: "robert shawn feller" <carboncow@GMAIL.COM>
> > To: <vanagon@GERRY.VANAGON.COM>
> > Sent: Saturday, June 24, 2006 7:10 PM
> > Subject: how do you test and a/c compressor?
> >
> >
> > > is there a way to tell from the high/low pressure ports and gauges?
> > >
> > > we recharged my system and it has no cooling effect. we cannot see any
> > > major
> > > leaks and its holding pressure. we pumped it down for several hours
> > and
> > > this
> > > included a new filter. since values are high on the gauges (compared
> > to
> > > what
> > > my a/c chart state) i'm considering and obstruction most likly in the
> > > x-valve or a crapped compressor. since i have to most likly drop the
> > top
> > > to
> > > get to the x-valve i'm wondering if there is a way to test the
> > compressor?
> > >
> > > shawn feller, ohio
> > > 1986 vw vanagon gl westfalia
> > > 1993 vw eurovan gl
> > > plus a couple of saabs, boats, jet skis, dog and wife (all require to
> > much
> > > maintenance, accept the dog)...
> > >
> > > www.carboncow.com
> > > www.carboncow.net
> >
> >
>
>
> --
>
> shawn feller, ohio
> 1986 vw vanagon gl westfalia
> 1993 vw eurovan gl
> plus a couple of saabs, boats, jet skis, dog and wife (all require to much
> maintenance, accept the dog)...
>
> www.carboncow.com
> www.carboncow.net
>
--
shawn feller, ohio
1986 vw vanagon gl westfalia
1993 vw eurovan gl
plus a couple of saabs, boats, jet skis, dog and wife (all require to much
maintenance, accept the dog)...
www.carboncow.com
www.carboncow.net
|