[Vwdiesel] A/C valve question and wanted

[Tad]

I think vacuum is just to get water/crap out of the system for increased
longevity.  Not strictly required for it to 'work'.

FYI Harbor Freight sells a cheap vacuum gizmo that operates from compressed
air supply (go figure), it has AC fittings so I assume is intended for AC
work...

On Mon, Jun 13, 2011 at 10:01 AM, Bryan Belman <dieselwesty at yahoo.com>wrote:

> Yes, I would like to know as well.  Must you use a vacuum to suck
> everything out
> of the system?  How do you do this, is it a special AC guy only tool?
> I have a good leak someplace and I want to remove the evaporater under the
> dash
> to inspect for leaks as you had described in the past, look for dirt
> sticking to
> gooey stuff.
> I will replace the O-rings and re-install, but wondering about the
> evacuation of
> the system before trying to put more R12 in again.
>
> Then, if it runs for a day or 2 and leaks out again like it did the last
> time I
> tried to fix it, I will have to put out the extra money for the colored gas
> and
> the special glasses to see the leak......as it is coming out.
>
> I hope to get the AC to work in the 92Jetta this summer.
>
>
>  Bryan Belman, Pt. Pleasant, NJ
> 04 Jetta Wagon TDI PD, 100hp, 5sp -- running :<)
> 92 Jetta 1.6 Eco-Turbo Diesel, 5sp -- running :<)
> 82 Diesel Westy 1.9NA -- running :<)
> 70 Type 1 stock Elm Green Beetle -- Under Restoration :-)
>
>
>
>
> ________________________________
> From: Dave Cook <davevw at yahoo.com>
> To: VW Diesel Group <vwdiesel at vwfans.com>
> Sent: Mon, June 13, 2011 12:28:14 PM
> Subject: Re: [Vwdiesel] A/C valve question and wanted
>
> On the lines of A/C...
>
> In the Banana Rabbit, I had to disconnect the compressor to pull the engine
> out,
> due to how the lines were run.  There was actually a bit of pressure that
> was in
> the system, which says to me that there is potential for the system to work
> if
> filled.
>
>
> In the mean time, I had some A/C work done at my house and I noted that
> they
> didn't pull any kind of vacuum, just filled the system back up after the
> work.
>
>
> So, I know on a car it is SOP to pull a vacuum on the system before
> filling, but
> I wonder if it is necessary?  Perhaps the vacuum is just a diagnostic
> thing,
> making sure there are no leaks.
>
>
> Any reason I couldn't get some of the r-12 replacement stuff and fill it up
> to
> try it out?
>
> Dave Cook
>
>
> --- On Mon, 6/13/11, W Davis <iatse321 at yahoo.com> wrote:
>
> > From: W Davis <iatse321 at yahoo.com>
> > Subject: Re: [Vwdiesel] A/C valve question and wanted
> > To: vwdiesel at vwfans.com
> > Date: Monday, June 13, 2011, 5:17 AM
> > Loren posted:
> >
> > "Not sure if you'll find one, or would really want
> > to...  Your
> > receiver/drier will likely be saturated and need replaced
> > anyway.
> > If you find it right,  it  should be around $25 I
> > think.
> > It'll have the new plug in it and keep your  system
> > all nice and dry too.
> >     Loren"
> >
> > Well..I guess I'll keep looking for that instead.
> >
> > Thanks again to all
> >
> > William in Clearwater  FL
> > 1985 Jetta GL TD
> > (my daily driver)
> >
> > _______________________________________________
> > Vwdiesel mailing list
> > Vwdiesel at vwfans.com
> > http://www.audifans.com/mailman/listinfo/vwdiesel
> >
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