| Original ac refrigerant volume dash ac system [message #335524] |
Mon, 23 July 2018 15:19  |
Deb
Messages: 349
Registered: October 2016
Location: Logan Lake, BC
Karma: 2
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Senior Member |
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My r-12 is gone. Here getting an oil change and want to recharge with r-12a.
What was the volume of refrigerant in the original system? Thx
Deb McWade
Logan Lake, BC, CAN
GMC Alumnus
It's Bigger on the Inside!
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| Re: [GMCnet] Original ac refrigerant volume dash ac system [message #335531 is a reply to message #335524] |
Mon, 23 July 2018 15:49  |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Senior Member |
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Deb,
It will take about 2 1/2 cans, maybe just a little bit more-= of 12A and you use much less than the regular 12. The DuraCool are much smaller than 12 or 134A cans. Should be about 25/26 PSIG on the suction side gauge. Sneak up on the pressure, over pressuring can cause loss of cool output.
JR Wright
GMC Great Laker MHC
GMC Eastern States Charter Member
GMCGL Tech Editor
GMCMI
78 GMC Buskirk 30’ Stretch
1975 GMC Avion (Under Reconstruction)
Michigan
> On Jul 23, 2018, at 4:19 PM, Deb McWade via Gmclist wrote:
>
> My r-12 is gone. Here getting an oil change and want to recharge with r-12a.
>
> What was the volume of refrigerant in the original system? Thx
> --
> Deb McWade
> Logan Lake, BC, CAN
> "Li'l Sister"
> '77 Kingsley, 403, EBL EFI;
> TZE167V101404
> It's Bigger on the Inside!
>
>
> _______________________________________________
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| Re: [GMCnet] Original ac refrigerant volume dash ac system [message #335532 is a reply to message #335531] |
Mon, 23 July 2018 15:52 |
Will Albers
Messages: 183
Registered: November 2017
Location: Detroit MI (Belleville)
Karma: 2
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Senior Member |
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Agreed on DuraCool. I have the US distributor's contact info at home if
you'ld like it, or just head to Walmart in Canada.
On Mon, Jul 23, 2018 at 4:50 PM John Wright wrote:
> Deb,
> It will take about 2 1/2 cans, maybe just a little bit more-= of 12A and
> you use much less than the regular 12. The DuraCool are much smaller than
> 12 or 134A cans. Should be about 25/26 PSIG on the suction side gauge.
> Sneak up on the pressure, over pressuring can cause loss of cool output.
>
> JR Wright
> GMC Great Laker MHC
> GMC Eastern States Charter Member
> GMCGL Tech Editor
> GMCMI
> 78 GMC Buskirk 30’ Stretch
> 1975 GMC Avion (Under Reconstruction)
> Michigan
>
>> On Jul 23, 2018, at 4:19 PM, Deb McWade via Gmclist gmclist@list.gmcnet.org> wrote:
>>
>> My r-12 is gone. Here getting an oil change and want to recharge with
> r-12a.
>>
>> What was the volume of refrigerant in the original system? Thx
>> --
>> Deb McWade
>> Logan Lake, BC, CAN
>> "Li'l Sister"
>> '77 Kingsley, 403, EBL EFI;
>> TZE167V101404
>> It's Bigger on the Inside!
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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1978 Palm Beach.
Detroit Michigan
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| Re: Original ac refrigerant volume dash ac system [message #335537 is a reply to message #335524] |
Mon, 23 July 2018 16:39 |
Deb
Messages: 349
Registered: October 2016
Location: Logan Lake, BC
Karma: 2
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Senior Member |
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Thanks folks. At NAPA here and they have done the oil & filter, a lube while they were at it and done the R-12A recharge. Will be nice to have dash air.
Deb McWade
Logan Lake, BC, CAN
GMC Alumnus
It's Bigger on the Inside!
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| Re: Original ac refrigerant volume dash ac system [message #335569 is a reply to message #335537] |
Tue, 24 July 2018 09:56 |
TR 1
Messages: 348
Registered: August 2015
Location: DFW
Karma: -7
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Deb wrote on Mon, 23 July 2018 16:39Thanks folks. At NAPA here and they have done the oil & filter, a lube while they were at it and done the R-12A recharge. Will be nice to have dash air.
Deb, how long has it been since you've used the dash AC? Vehicle ACs and especially systems running old compressor designs like the A6 like to be run periodically to circulate oil to keep seals lubricated, etc...
If it's been a while since you've used it, you may want to ask them to do a leak check, to make sure the money you spent on a recharge does not go to waste....
Mark S. '73 Painted Desert,
Manny 1 Ton Front End,
Howell Injection,
Leigh Harrison 4bag and Rear Brakes,
Fort Worth, TX
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| Re: Original ac refrigerant volume dash ac system [message #335590 is a reply to message #335569] |
Tue, 24 July 2018 19:28 |
Deb
Messages: 349
Registered: October 2016
Location: Logan Lake, BC
Karma: 2
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Senior Member |
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They applied a solid vacuum for over 30 minutes and there were no leaks.
The original r12 was basically gone. I had run the compressor a few times hoping there might be something there, but with no refrigerant all I got was slightly cooler than vent air. They charged the system with R-12a with the applied vacuum rather than just under the pressure of the can.
So far so good. Getting a nice blast of cold air when I ask for it.
Deb McWade
Logan Lake, BC, CAN
GMC Alumnus
It's Bigger on the Inside!
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