Home » Public Forums » GMCnet » non-GMC- old car AC - duracool
| non-GMC- old car AC - duracool [message #211831] |
Fri, 21 June 2013 17:10  |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
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Just picked up a 1985 Audi 5000.
What a surprise, the AC doesn't work.
But everything on the car has been well maintained, there is still some pressure in the system, and the compressor turns smoothly in my hand.
So I am hoping a shot of Duracool will do the trick.
Am I correct in thinking that only the refrigerant leaked off and that the oil is still in place?
thanks
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #211833 is a reply to message #211831] |
Fri, 21 June 2013 17:26  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Maybe a can of their System Seal wouldn't hurt, but I'd doubt that you've lost any oil unless there are clear signs of it. For the price of a few cans of Duracool I'd shoot the juice.
I'm even going to try their kit on my roof air conditioner. I bought their R-22 kit and will report back. Very little to loose, and a few bucks to save if it works!
Larry Davick
Fremont, California
A Mystery Machine
'76 (ish) Palm Beach
----- Original Message -----
From: "dave silva" <admin@oldrv.net>
To: gmclist@temp.gmcnet.org
Sent: Friday, June 21, 2013 3:10:14 PM
Subject: [GMCnet] non-GMC- old car AC - duracool
Just picked up a 1985 Audi 5000.
What a surprise, the AC doesn't work.
But everything on the car has been well maintained, there is still some pressure in the system, and the compressor turns smoothly in my hand.
So I am hoping a shot of Duracool will do the trick.
Am I correct in thinking that only the refrigerant leaked off and that the oil is still in place?
thanks
--
Dave & Ellen Silva
1972 Revcon Olds 455, toro drive train. All Stock
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #211877 is a reply to message #211831] |
Sat, 22 June 2013 11:29 |
GMC_LES
Messages: 569
Registered: October 2009
Location: Montreal
Karma: 0
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Dave,
When you say the system still had some pressure, was it just a few PSI, or substantial pressure? If you still have a decent amount of pressure then there is still some freon in the system and doing a leak check won't show you very much. You will need to evacuate the old freon before adding the duracool.
I've owned and maintained quite a few of the Audi 5000s. A great car for those who are able to do their own maintenance. The body is fully galvanized so not normally susceptible to rust. My parents owned several that made it well past 300k miles on the clock. The biggest weakness is the auto transmission versions which suffer a final drive pinion bearing failure. The cause of failure is typically low FD oil levels. The fill plug is hidden behind the LH trans support bracket which needs to be removed to verify oil level. Very few shops will take the hour of necessary time to check the FD oil. To make things worse, the FD output seals typically develop slow weeping leaks.
Good luck with your new acquisition!
Les Burt
Montreal
On 2013-06-21, at 6:10 PM, dave silva <admin@oldrv.net> wrote:
>
>
> Just picked up a 1985 Audi 5000.
> What a surprise, the AC doesn't work.
>
> But everything on the car has been well maintained, there is still some pressure in the system, and the compressor turns smoothly in my hand.
>
> So I am hoping a shot of Duracool will do the trick.
>
> Am I correct in thinking that only the refrigerant leaked off and that the oil is still in place?
>
> thanks
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #211881 is a reply to message #211880] |
Sat, 22 June 2013 13:12 |
GMC_LES
Messages: 569
Registered: October 2009
Location: Montreal
Karma: 0
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I have also mixed r12 &r134 in the same system cwith functional results. That doesn't mean it is recommended for long term durability. Best results most always come from following proper directions. <G>
Les Burt
Montreal
On 2013-06-22, at 2:05 PM, Larry <weidnerl@wwt.net> wrote:
>
>
> I acquired a 96 Geo Tracker about 7 yrs ago and the AC did not work. I hooked up a gauge to the low side and found less than 10lbs at 1500rpm. So I just added Duracool to what was there. Brought it to 25lbs low side, and the AC blew cold for as long as I had that vehicle. If it were me, I'd try just adding Duracool and see what happends. Duracool and R134 seem to mix OK. JWID
> --
> Larry :)
> 78 Royale w/500 Caddy
> Menomonie, WI.
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Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #211931 is a reply to message #211831] |
Sun, 23 June 2013 06:33 |
Steven Ferguson
Messages: 3447
Registered: May 2006
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What Larry says. Keep an eye on the low side pressure. When I switched my
Caprice over, it was so cold that the evaporator would freeze over.
Steve F.
On Fri, Jun 21, 2013 at 3:10 PM, dave silva <admin@oldrv.net> wrote:
>
>
> Just picked up a 1985 Audi 5000.
> What a surprise, the AC doesn't work.
>
> But everything on the car has been well maintained, there is still some
> pressure in the system, and the compressor turns smoothly in my hand.
>
> So I am hoping a shot of Duracool will do the trick.
>
> Am I correct in thinking that only the refrigerant leaked off and that the
> oil is still in place?
>
> thanks
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Take care,
Steve
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #211987 is a reply to message #211877] |
Sun, 23 June 2013 16:28 |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
Karma: 0
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| Les Burt wrote on Sat, 22 June 2013 11:29 |
Dave,
When you say the system still had some pressure, was it just a few PSI, or substantial pressure? If you still have a decent amount of pressure then there is still some freon in the system and doing a leak check won't show you very much. You will need to evacuate the old freon before adding the duracool.
|
"some pressure" is just a slight hiss.
Why would i need to evacuate the old freon before adding duracool? I thought the beauty of Duracol is the cross-compatibility with R12 & R134.
Being an 86 it is definately an R12 system with no evidence of a conversion. THe guys on the Audi forum are adamant that a conversion must include replacing a lot of parts.
I'm ready to do that but my hunch is that the R12 was allowed to leak to almost nothing over more a couple years by a PO who did not want to deal with it.
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #211996 is a reply to message #211987] |
Sun, 23 June 2013 17:58 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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| hertfordnc wrote on Sun, 23 June 2013 14:28 |
| Les Burt wrote on Sat, 22 June 2013 11:29 |
Dave,
When you say the system still had some pressure, was it just a few PSI, or substantial pressure? If you still have a decent amount of pressure then there is still some freon in the system and doing a leak check won't show you very much. You will need to evacuate the old freon before adding the duracool.
|
"some pressure" is just a slight hiss.
Why would i need to evacuate the old freon before adding duracool? I thought the beauty of Duracol is the cross-compatibility with R12 & R134.
Being an 86 it is definately an R12 system with no evidence of a conversion. THe guys on the Audi forum are adamant that a conversion must include replacing a lot of parts.
I'm ready to do that but my hunch is that the R12 was allowed to leak to almost nothing over more a couple years by a PO who did not want to deal with it.
|
This may be a radical opinion, but I can't see how it could hurt to just charge it back up with Duracool. As long as you don't overcharge the system I doubt that you will hurt anything. Worst case is it won't work as well as it would if you evacuate the system and fix everything right (which you're likely to have to do eventually anyway) and you've wasted a few cans of Duracool.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #211999 is a reply to message #211993] |
Sun, 23 June 2013 18:49 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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| Robert Mueller wrote on Sun, 23 June 2013 15:37 |
To get the best performance out of the A/C system it's better to have all Dura Cool.
I would suggest you pressurize and fix the leak before you charge it with Dura Cool.
Yes, I am aware that it has been stated here that the Dura Cool molecule is "larger" and less likely to leak, however, have never
read it in any Dura Cool documentation.
Regards,
Rob M.
-----Original Message-----
From: dave silva
Why would i need to evacuate the old freon before adding duracool? I thought the beauty of Duracol is the cross-compatibility with
R12 & R134.
Being an 86 it is definately an R12 system with no evidence of a conversion. THe guys on the Audi forum are adamant that a
conversion must include replacing a lot of parts.
I'm ready to do that but my hunch is that the R12 was allowed to leak to almost nothing over more a couple years by a PO who did not
want to deal with it.
Dave
wouldn't hurt a thing if you're not concerned about it leaking out.
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Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #212027 is a reply to message #212011] |
Mon, 24 June 2013 04:57 |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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Senior Member |
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Our Gubment, it its infinite wisdom, says duracool is bad, and it is illegal to put it into motor vehicles:
http://www.epa.gov/ozone/snap/refrigerants/hc-12a.html
</sarc> 
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #212028 is a reply to message #212027] |
Mon, 24 June 2013 06:09 |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
Karma: 0
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Senior Member |
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Exactly, that's why only our Canadian, Australian and European members would actually use the stuff. For the rest of us it is a purely theoretical discussion for academic purposes.
Thanks you for participating.
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #212039 is a reply to message #212028] |
Mon, 24 June 2013 09:33 |
GMC_LES
Messages: 569
Registered: October 2009
Location: Montreal
Karma: 0
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Only problem is that us Canadian folk don't like the price we have to pay for Duracool. I see it in canadian Walmarts for approx $15 - $16 a can. I have also seen it in a few auto parts with a price tag over $22 a can.
I need to find a US supplier with a decent price that is willing to ship to NY.
Les Burt
Montreal
On 2013-06-24, at 7:09 AM, dave silva <admin@oldrv.net> wrote:
>
>
> Joe Weir wrote on Mon, 24 June 2013 04:57
>> Our Gubment, it its infinite wisdom, says duracool is bad, and it is illegal to put it into motor vehicles:
>>
>> http://www.epa.gov/ozone/snap/refrigerants/hc-12a.html
>>
>> </sarc> :roll:
>
>
> Exactly, that's why only our Canadian, Australian and European members would actually use the stuff. For the rest of us it is a purely theoretical discussion for academic purposes.
>
> Thanks you for participating.
>
>
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #212042 is a reply to message #212039] |
Mon, 24 June 2013 09:35 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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did you try all the ones listed here
http://gmcmotorhome.info/heat.html#duracool
gene
On Mon, Jun 24, 2013 at 7:33 AM, Les Burt <gmc.les@gmail.com> wrote:
> Only problem is that us Canadian folk don't like the price we have to pay
> for Duracool. I see it in canadian Walmarts for approx $15 - $16 a can. I
> have also seen it in a few auto parts with a price tag over $22 a can.
>
> I need to find a US supplier with a decent price that is willing to ship
> to NY.
>
>
> Les Burt
> Montreal
>
>
>
> On 2013-06-24, at 7:09 AM, dave silva <admin@oldrv.net> wrote:
>
> >
> >
> > Joe Weir wrote on Mon, 24 June 2013 04:57
> >> Our Gubment, it its infinite wisdom, says duracool is bad, and it is
> illegal to put it into motor vehicles:
> >>
> >> http://www.epa.gov/ozone/snap/refrigerants/hc-12a.html
> >>
> >> </sarc> :roll:
> >
> >
> > Exactly, that's why only our Canadian, Australian and European members
> would actually use the stuff. For the rest of us it is a purely
> theoretical discussion for academic purposes.
> >
> > Thanks you for participating.
> >
> >
> > --
> > Dave & Ellen Silva
> >
> > 1972 Revcon Olds 455, toro drive train. All Stock
> >
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] non-GMC- old car AC - duracool [message #212052 is a reply to message #212042] |
Mon, 24 June 2013 11:14 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Les,
This is the guy that I buy from.
http://www.ja-ran.com/index.php
Click on the duracool circle.
My last case last year was in the mid $70's.
You can order from any of the US distributors as long as you have a US mailing address.
http://www.bennettsupply.net/cart/
JR Wright
78 Buskirk Stretch
Michigan
On Jun 24, 2013, at 10:35 AM, gene Fisher <mr.erfisher@gmail.com> wrote:
>
> On Mon, Jun 24, 2013 at 7:33 AM, Les Burt <gmc.les@gmail.com> wrote:
>
>> Only problem is that us Canadian folk don't like the price we have to pay
>> for Duracool. I see it in canadian Walmarts for approx $15 - $16 a can. I
>> have also seen it in a few auto parts with a price tag over $22 a can.
>>
>> I need to find a US supplier with a decent price that is willing to ship
>> to NY.
>>
>>
>> Les Burt
>> Montreal
>>
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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