| What happened to Duracool? HC-12a?? $$$$ [message #358423] |
Tue, 08 September 2020 14:51  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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Wow,
Tomorrow I am off to service the refrigeration on a clients boat. Years ago I got it going by changing it to HC-12a (brand uncertain but probably Duracool). I know that his system may need more than a single can, so I went on-line shopping.....
10 to 14$US per can!! I can actually buy real Dupont R-12 for that much now.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] What happened to Duracool? HC-12a?? $$$$ [message #358425 is a reply to message #358423] |
Tue, 08 September 2020 16:11  |
stu@97381.com, Emery
Messages: 232
Registered: June 2020
Karma: 2
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Senior Member |
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The cost has gone up because it is more popular now.
Don’t forget that you only need about 3 cans of Duracool vs. 6 cans on R-12.
So, its still 1/2 as expensive as R-12 and it works better.
You can find equivalent brands to Duracool for about 6 o 7 a can in case quantities.
Emery Stora
77 Kingsley
Frederick, CO
> On Sep 8, 2020, at 1:51 PM, Matt Colie via Gmclist wrote:
>
> Wow,
>
> Tomorrow I am off to service the refrigeration on a clients boat. Years ago I got it going by changing it to HC-12a (brand uncertain but probably
> Duracool). I know that his system may need more than a single can, so I went on-line shopping.....
>
> 10 to 14$US per can!! I can actually buy real Dupont R-12 for that much now.
>
> Matt
> --
> Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
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| Re: [GMCnet] What happened to Duracool? HC-12a?? $$$$ [message #358434 is a reply to message #358430] |
Tue, 08 September 2020 18:04 |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
Karma: 0
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Senior Member |
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Just ordered 12 6oz can. My Birch has R134 conversion and it has mostly leaked off in five years.
After i put a vacuum on it and find the leaks, How much Duracool should it take ?
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
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| Re: [GMCnet] What happened to Duracool? HC-12a?? $$$$ [message #358445 is a reply to message #358434] |
Wed, 09 September 2020 11:19 |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
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Senior Member |
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Dave:
If you can, you might be better off doing a nitrogen purge before pulling the vacuum and recharging the system.
I’ve always find it easier to “spray for bubbles” when looking for leaks.
My .02
Dolph
DE AD0LF
Wheeling, West Virginia
1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Manny Transmission
“The Aluminum and Fiberglass Mistress”
|[ ]~~~[][ ][] \
"--OO--[]---O-"
> On Sep 8, 2020, at 7:04 PM, dave silva via Gmclist wrote:
>
> Just ordered 12 6oz can. My Birch has R134 conversion and it has mostly leaked off in five years.
>
> After i put a vacuum on it and find the leaks, How much Duracool should it take ?
>
>
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
>
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| Re: [GMCnet] What happened to Duracool? HC-12a?? $$$$ [message #358448 is a reply to message #358424] |
Wed, 09 September 2020 11:39 |
Dolph Santorine
Messages: 1236
Registered: April 2011
Location: Wheeling, WV
Karma: -41
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Senior Member |
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That sounds like a plan!
I get a kick out of watching the little puffs of moisture that the vacuum pump successfully drags out of even the best kept system.
No substitute for a good hard vacuum on a refrigeration system!
Dolph
DE AD0LF
Wheeling, West Virginia
1977 26’ ex-PalmBeach
Howell EFI & EBL, Reaction Arms, Manny Transmission
“The Aluminum and Fiberglass Mistress”
|[ ]~~~[][ ][] \
"--OO--[]---O-"
> On Sep 9, 2020, at 12:36 PM, Emery Stora via Gmclist wrote:
>
> I recently replaced all the O rings but after pulling a vacuum I found it would slowly leak down. I wanted to pressurize the system to check for leaks. I didn’t have a nitrogen tank so I used compressed air. I drained off all condensate from the tank and charged the air conditioner to 20 psi. I found my leak with soap bubbles but it was at the connection of the low pressure hose from my gauges. I tightened it with pliers and the leak stopped. Realizing that in addition to the air I also had introduced some moisture, I left the vacuum pump on all night. I then charged it and no more leaks
>
> Emery Stora
> 77 Kingsley
> Frederick CO
>
>> On Sep 9, 2020, at 10:20 AM, Dolph Santorine via Gmclist wrote:
>>
>> Dave:
>>
>> If you can, you might be better off doing a nitrogen purge before pulling the vacuum and recharging the system.
>>
>> I’ve always find it easier to “spray for bubbles” when looking for leaks.
>>
>> My .02
>>
>>
>> Dolph
>>
>> DE AD0LF
>
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