1990 Miata refrigrant....

Can someone tell me the refrigrant in a 1990 miata
R12 or R143?
if it's R12 recharged with R134 refrigrant, then what do i need to
do to correct the problem properly with R134?

Thanks

I'm sure it's R-12. Go to Miata dot net and look in the garage section.
There are a couple of schools of thought on this subject. You'll see what I
mean. My '92 has R-12 which is on it's last summer!
"Crazy Banana" > wrote in message
...
> Can someone tell me the refrigrant in a 1990 miata
> R12 or R143?
> if it's R12 recharged with R134 refrigrant, then what do i need to
> do to correct the problem properly with R134?
>
> Thanks
>


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If you have a system that was converted properly to R134 no problem. If you
have the original R12, generally it is salvaged, filtered, and put back if
possible.
Contaminated or open systems (mixed gas, no gas, etc.) generally require a
complete flush, drier replacement, and new refrigrant. On a 90 I'd also
consider replacing the compressor due to age and possible compatibility with
the new refrigrant and oil.

"John Breslin" > wrote in message
...
> I'm sure it's R-12. Go to Miata dot net and look in the garage section.
> There are a couple of schools of thought on this subject. You'll see what
> I mean. My '92 has R-12 which is on it's last summer!
> "Crazy Banana" > wrote in message
> ...
>> Can someone tell me the refrigrant in a 1990 miata
>> R12 or R143?
>> if it's R12 recharged with R134 refrigrant, then what do i need to
>> do to correct the problem properly with R134?
>>
>> Thanks
>>
>
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.771 / Virus Database: 518 - Release Date: 9/28/2004
>


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It's R-12. I had my '90 converted this summer to R-134...cost was about
$125 for the kit and conversion. Can't tell any difference in the cooling
capacity.
"chuckk" > wrote in message
...
> If you have a system that was converted properly to R134 no problem. If
> you have the original R12, generally it is salvaged, filtered, and put
> back if possible.
> Contaminated or open systems (mixed gas, no gas, etc.) generally require a
> complete flush, drier replacement, and new refrigrant. On a 90 I'd also
> consider replacing the compressor due to age and possible compatibility
> with the new refrigrant and oil.
>
> "John Breslin" > wrote in message
> ...
>> I'm sure it's R-12. Go to Miata dot net and look in the garage section.
>> There are a couple of schools of thought on this subject. You'll see
>> what I mean. My '92 has R-12 which is on it's last summer!
>> "Crazy Banana" > wrote in message
>> ...
>>> Can someone tell me the refrigrant in a 1990 miata
>>> R12 or R143?
>>> if it's R12 recharged with R134 refrigrant, then what do i need to
>>> do to correct the problem properly with R134?
>>>
>>> Thanks
>>>
>>
>>
>> ---
>> Outgoing mail is certified Virus Free.
>> Checked by AVG anti-virus system (http://www.grisoft.com).
>> Version: 6.0.771 / Virus Database: 518 - Release Date: 9/28/2004
>>
>
>
> ---
> Outgoing mail is AVG certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
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>

I had my 1990 recharged once about five years ago. Still works fine (saying
so is probably the kiss of death). It's R-12, as stated, and the only
drawback was that it costs a bit more than R134. Even so, I would vote for
keeping the R-12 system intact until there was a real good reason not to.

Ken


"bk" > wrote in message
...
> It's R-12. I had my '90 converted this summer to R-134...cost was about
> $125 for the kit and conversion. Can't tell any difference in the cooling
> capacity.
> "chuckk" > wrote in message
> ...
> > If you have a system that was converted properly to R134 no problem. If
> > you have the original R12, generally it is salvaged, filtered, and put
> > back if possible.
> > Contaminated or open systems (mixed gas, no gas, etc.) generally require
a
> > complete flush, drier replacement, and new refrigrant. On a 90 I'd also
> > consider replacing the compressor due to age and possible compatibility
> > with the new refrigrant and oil.
> >
> > "John Breslin" > wrote in message
> > ...
> >> I'm sure it's R-12. Go to Miata dot net and look in the garage
section.
> >> There are a couple of schools of thought on this subject. You'll see
> >> what I mean. My '92 has R-12 which is on it's last summer!
> >> "Crazy Banana" > wrote in message
> >> ...
> >>> Can someone tell me the refrigrant in a 1990 miata
> >>> R12 or R143?
> >>> if it's R12 recharged with R134 refrigrant, then what do i need to
> >>> do to correct the problem properly with R134?
> >>>
> >>> Thanks
> >>>
> >>
> >>
> >> ---
> >> Outgoing mail is certified Virus Free.
> >> Checked by AVG anti-virus system (http://www.grisoft.com).
> >> Version: 6.0.771 / Virus Database: 518 - Release Date: 9/28/2004
> >>
> >
> >
> > ---
> > Outgoing mail is AVG certified Virus Free.
> > Checked by AVG anti-virus system (http://www.grisoft.com).
> > Version: 6.0.766 / Virus Database: 513 - Release Date: 9/17/2004
> >
>
>

KWS wrote:
> I had my 1990 recharged once about five years ago. Still works fine
> (saying so is probably the kiss of death). It's R-12, as stated, and
> the only drawback was that it costs a bit more than R134. Even so, I
> would vote for keeping the R-12 system intact until there was a real
> good reason not to.

Agreed. It also greatly helps to *use* the A/C on a weekly basis, at least.
I can't believe the number of people I've met that can't figure out why
their A/C doesn't work, because, in their words--"they hardly ever even use
it". I've never had to recharge an A/C system on one of my cars that ran the
system a lot.

<snip>

--
tooloud
Remove nothing to reply...

It probably has to do with lubrication. We tend to use the AC a lot here in
the SF Bay Area and our problems have been few.

Ken

"tooloud" > wrote in message
...
> KWS wrote:
> > I had my 1990 recharged once about five years ago. Still works fine
> > (saying so is probably the kiss of death). It's R-12, as stated, and
> > the only drawback was that it costs a bit more than R134. Even so, I
> > would vote for keeping the R-12 system intact until there was a real
> > good reason not to.
>
> Agreed. It also greatly helps to *use* the A/C on a weekly basis, at
least.
> I can't believe the number of people I've met that can't figure out why
> their A/C doesn't work, because, in their words--"they hardly ever even
use
> it". I've never had to recharge an A/C system on one of my cars that ran
the
> system a lot.
>
> <snip>
>
> --
> tooloud
> Remove nothing to reply...
>
>