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Date:         Fri, 14 May 2010 22:41:07 -0500
Reply-To:     Ry <rylincoln@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Ry <rylincoln@GMAIL.COM>
Subject:      Re: A/C work question
Comments: To: Jake de Villiers <crescentbeachguitar@gmail.com>
In-Reply-To:  <AANLkTimnvPKQgm1uPmTI_JqW4WrKPt4CvSM8w9o6NeRd@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

So I'm confused and feeling a little dumb at the moment about which port is the High and which port is the Low pressure side. THe diagram in the Bentley is not identical to how my 1991 Carat looks.

What I believe based on my interpretation of the "not exactly like mine" diagram in Bentley is that the port that is under the drivers side rear quarter panel is the LOW pressure side and that the port on the "J" pipe coming off the compressor is the HIGH side. Can anyone please confirm this for me? I just want to be super sure.

All o-rings replaced, new condenser and new dryer.

Thanks -Ry http://www.google.com/profiles/rylincoln

On Fri, May 14, 2010 at 11:23 AM, Ry <rylincoln@gmail.com> wrote:

> Thanks. Good to know. I'll probably go ahead and disconnect since I have > replacement hoses ready and waiting to be put on. Depends on how ambitious > I get. :) > > -Ry > http://www.google.com/profiles/rylincoln > > > On Fri, May 14, 2010 at 10:17 AM, Jake de Villiers < > crescentbeachguitar@gmail.com> wrote: > >> Hey Ry, you don't have to disconnect the hoses to drop the rad - there's >> plenty of length there - but you can if you want to. >> >> >> On Fri, May 14, 2010 at 7:07 AM, Ry <rylincoln@gmail.com> wrote: >> >>> Thanks guys. Seems I'll be dropping the radiator at same time as >>> condenser >>> and replacing the two coolant hoses to it since I have them on hand. >>> Seems >>> the best time to do it is now. >>> >>> cheers, >>> -Ry >>> http://www.google.com/profiles/rylincoln >>> >>> >>> On Thu, May 13, 2010 at 4:06 PM, Dave Mcneely <mcneely4@cox.net> wrote: >>> >>> > Thanks Keith >>> > >>> > ---- Keith Hughes <keithahughes@q.com> wrote: >>> > > On 5/13/2010 1:13 PM, mcneely4@cox.net wrote: >>> > > > ---- Keith Hughes<keithahughes@Q.COM> wrote: >>> > > > but you'd be miles >>> > > > >>> > > >> ahead if you replaced the stock condenser with a newer cross-flow >>> > > >> style. The stock condensers are really inadequate for use with >>> 134-A >>> > if >>> > > >> you live anywhere hot (like here in Phoenix AZ). You can get >>> > conversion >>> > > >> fittings/hoses and a new condenser for about the price of a new >>> OEM >>> > unit. >>> > > >> >>> > > > Keith, please tell us more about the "cross-flow" style condensor, >>> such >>> > as where to get it, and exactly how it is better than the original. I >>> live >>> > and travel in hot places, and I am converting my camper AC system to >>> 134-A, >>> > along with searching out a leak and hopefully repairing it. If I need >>> a new >>> > condenser, perhaps I should get one of these. >>> > > > >>> > > > Thanks, David McNeely >>> > > > >>> > > David, >>> > > >>> > > The cross-flow styles are a combination series-parallel design that >>> use >>> > > higher surface area to internal volume tubes like the radiators do. >>> > > They have multiple tubes paralleled together that dump into a common >>> > > manifold that then does through a second set of paralleled tubes >>> before >>> > > exiting. The number of parallel/series modules depends on the size >>> of >>> > > the unit. In addition to the higher surface area, the flow rate in >>> the >>> > > tubes is significantly lower (multiple paths instead of one >>> serpentine >>> > > tube) allowing more residence time and greater heat transfer. They >>> are >>> > > typically made out of aluminum, and the biggest downside is that the >>> > > tubes are quite small, and they cannot be effectively cleaned. The >>> unit >>> > > I used was under $100, so if it clogs, replacement won't break the >>> bank. >>> > > >>> > > I got all my stuff from Arizona Mobile Air (www.ackits.com) since >>> > > they're here in Phoenix, but there are a number of places on the web >>> you >>> > > can find similar units. Search for universal cross-flow condenser >>> and >>> > > you should find quite a variety. If you go that route, source out the >>> > > largest you can find that'll fit, 'cause you'll need all the surface >>> > > area you can get when you switch refrigerants. You might consider >>> > > getting two 17W x 12H units (IIRC, the stock is 17W x 19H), and >>> stacking >>> > > them in series. You'll need a short connector hose fabricated, but >>> that >>> > > configuration will give you about the maximum size you can fit. I >>> was >>> > > never able to find a single unit that was the right size. I used a >>> 17W >>> > > x 15H unit which was the same surface area as the old one (I had the >>> > > early split condenser - smaller than what you have), and the R-134A >>> > > performance is slightly better than it was with R-12 and the old >>> > > condenser. Next time I get ambitious, I'm changing out to the dual >>> setup >>> > > to increase capacity. I'd hate to see what the performance would >>> have >>> > > been with the old condenser. >>> > > >>> > > Keith Hughes >>> > > '86 Westy Tiico (Marvin) >>> > >>> > -- >>> > David McNeely >>> > >>> >> >> >> >> -- >> Jake >> >> 1984 Vanagon GL 1.9 WBX 'The Grey Van' >> 1986 Westy Weekender/2.5 SOHC Suby 'Dixie' >> >> Crescent Beach, BC >> >> www.thebassspa.com >> www.crescentbeachguitar.com >> http://subyjake.googlepages.com/mydixiedarlin%27 >> >> >


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