Date: Thu, 7 Sep 2006 16:00:53 -0400
Reply-To: Helmut Blong <helmut.blong@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Helmut Blong <helmut.blong@GMAIL.COM>
Subject: Fwd: a/c - Sorry
In-Reply-To: <45007351.2080006@charter.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I am convinced that Freeze 12 is the way to go. The questions then are can
you by it without a license and are the fittings the same as the R12? I've
found the distributors on line but can't sort out either of these questions.
---------- Forwarded message ----------
From: John Rodgers <inua@charter.net>
Date: Sep 7, 2006 3:30 PM
Subject: Re: a/c - Sorry
To: vanagon@gerry.vanagon.com
Technically, you should have a person certified to work on vehicular AC
systems do the job. But then if you go I think to the EPA website, you
can take an online exam of 25 questions, pass the thing, and get your
own license.Then do it yourself.
But really, it's all about being safe, and doing what's right for the
environment.v
Like getting a bad diagnosis by the doctor - I would want a second opinion.
A tip about these AC systems. You must run the AC once a week or the
ester oils dry up, the seals harden in the system and then leaks spring
up everywhere and you lose the charge. If this AC has not been
diligently run, then you probably DO have a bunch of leaking seals. I
doubt that you would have a bad hose, but it is possible, but not for
the same reason you would have seal leaks.
Your compressor may work just fine after new seals are installed in the
system, and it is properly serviced. If you find someone you can trust,
ask them about going to Freeze 12, the nearest thing to R12. Save
yourself some headaches and money.
Regards,
John Rodgers
88 GL Driver
Stephen Grisanti wrote:
> I am following this thread with interest because the
> new-to-us '87 Westy with A/C was diagnosed during the
> pre-buy check with a working compressor that probably
> only needed a charge (R-12, the original system is
> unconverted).
>
> After the purchase I took it to an A/C shop I'd done
> business with and they were to charge and test. Came
> back saying that the compressor leaks, several
> fittings leak and even some hoses leak. No cool, and
> an outrageous estimate for repair/conversion. Now I'm
> wondering how much I should trust them.
>
> I'm tempted to try another shop for just an R-12
> charge to see how long that lasts, but if that is
> unsatisfactory will probably eventually convert.
>
> As I understand it from this thread, I can use Freeze
> 12 to try to get cooling. Can I actually do this or
> must I change fittings? Or must I rely solely on
> paying shops to recharge periodically with R-12 until
> the conversion?
>
> Thanks!
> Stephen
>
> --- mad madeline <mac10wv@YAHOO.COM> wrote:
>
>
>> Sorry Bob.. I missed the point that you had already
>> converted it. MM
>>
>> John Rodgers <inua@CHARTER.NET> wrote: trooz wrote:
>>
>>> I was told that one cannot simply add 134-A to a
>>>
>> cooling system that's only
>>
>>> blowing about 57 degrees. They said the system had
>>>
>> to be totally evacuated
>>
>>> and then filled with a precise amount. Anyone know
>>>
>> about that? I've always
>>
>>> had Freon added in the past (it's been R-12 until
>>>
>> a few months ago when I
>>
>>> had the system converted to 134-A). Is this
>>>
>> something peculiar to 134-A or
>>
>>> just peculiar to this shop? They're talking close
>>>
>> to a couple hundred
>>
>>> dollars to do it.
>>>
>>> Bob Trousdale
>>> '90 Westy
>>>
>>>
>>>
>>>
>> I think you are getting a snow job from the shop. If
>> they have the
>> proper guages they can determine exactly how much
>> needs to be added
>> without going through all that.
>>
>> Now that you have already converted to 134a, you can
>> legally step up and
>> convert to a blended refrigerant like Freeze-12,
>> which will give you
>> performance within a gnats whisker of the original
>> R-12, and is a lot
>> cheaper. The rules regarding all this are an
>> abfuscation in my opinion,
>> but if you really dig into it, you discover that
>> legally you can't go
>> directly from R-12 to a blended refrigerant like
>> Freeze-12, but by
>> regulation you must first convert - using all the
>> proper steps - to
>> 134a, then from there you may convert again - using
>> all the proper steps
>> - over to the blended refrigerant. I think the legal
>> beagles were trying
>> to avoid some kind of problems if they said it was
>> OK to convert
>> straight across. No mechanical reason you can't,
>> just legal reasons -
>> it's the rules.
>>
>> Good luck,
>>
>> John Rodgers
>> 88 GL driver
>>
>>
>>
>> ---------------------------------
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>>
>
>
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