Re: What Is Involved With A/C Changeover To R134a?
- From: Vic Smith <thismailautodeleted@xxxxxxxxxxx>
- Date: Mon, 25 May 2009 14:37:30 -0500
On Sun, 24 May 2009 18:55:13 -0700 (PDT), The Doctor
<nwbender@xxxxxxxxx> wrote:
I have 2 vehicles, 1 a 1986 Pontiac 6000 STE and the othe a 1993 Honda
Accord. They both run on R12 and need charging. Is there a simple way
to change these over to 134a? I know the system has to be vacuumed
down and I have access to that tool-however, nothing else. I really
want to do this on my own so a shop is not the best option for me.
Thanks for any help you can provide!
Jay
First off you have to decide what is justifiable money to put into old
cars.
There's the expensive process, where you basically replace everything,
or at minimum flush everything with no guarantee it will work.
Then there's the cheap way, where you change the fittings, evacuate as
much of the old oil as will come out, then refill with R134 oil and
refrigerant. Of course any leaks have to be fixed anyway.
My mechanic recommended the second method with my '90 Corsica, which
started blowing warm. He found no leaks and charged me @120 bucks for
the conversion. Just fittings, evac, and recharge.
Blew cold for about 3 years, then I heard a hissing from the
condenser, and watched the oil stain spread under it.
I spent +200 for a new condenser, put it on, charged it up and
got nothing for my trouble. The compressor is probably shot.
Didn't feel like spending another 300 for a compressor, so I've been
driving it for the past 6 years with no air. Up here around Chicago
for a grocery-getter it's not a big deal. Kick myself in the ass for
buying that condenser.
Depending on the heat where you live, you've got to balance cost
against benefit.
You might try the cheapest conversion on those old cars and see if it
works for you.
Not much to lose.
--Vic
.
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- What Is Involved With A/C Changeover To R134a?
- From: The Doctor
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