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Converting freon [message #354948]

Thu, 21 May 2020 15:21

Samuel Ferguson

Messages: 107
Registered: September 2019
Location: Pittsfield, Illinois

Karma: 0

Senior Member

Is it possible to convert freon from R12to the 134 in a 1976 Palm Beach?

Samuel Ferguson Summer Hill, Illinois (West Central Illinois) 1976 GMC Palm Beach

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Re: Converting freon [message #354949 is a reply to message #354948]

Thu, 21 May 2020 15:32

Stephan Ashe

Messages: 32
Registered: October 2016
Location: Tucson Az

Karma: 0

Member

absolutely, my 77 royale was converted. Better yet change over to DuraCool instead, lower pressure, "better" refrigerant and you wont need to do as much with the oil as it is compatible with the R12 lubricant. other will chime in I'm sure.

Stephan Ashe 1973 26-6 painted desert? 1977 Royale sidebath Tucson Az

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Re: Converting freon [message #354950 is a reply to message #354948]

Thu, 21 May 2020 15:33

Carl S.

Messages: 4186
Registered: January 2009
Location: Tucson, AZ.

Karma: 13

Senior Member

Yes, but you'll need to drain the oil out of the compressor and flush the system, then add the proper amount of oil that is compatible with the 134-A

A better option for some of us has been to charge with Dura-Cool or Frosty-Cool. Both are a HC12-a propane/butane mix refrigerant that is widely used in other countries, but is not legal (for shops to install) in the US.

I'm sure you will get more details on that in additional posts.

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

[Updated on: Fri, 22 May 2020 11:46]

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Re: [GMCnet] Converting freon [message #354955 is a reply to message #354950]

Thu, 21 May 2020 15:50

Dolph Santorine

Messages: 1236
Registered: April 2011
Location: Wheeling, WV

Karma: -41

Senior Member

What Carl said.

I’ve had great luck with the Dura-Cool, and have used it in other vehicles, and some other places I likely shouldn’t.

It’s an excellent refrigerant, IMHO.

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 May 21, 2020, at 4:33 PM, Carl Stouffer via Gmclist wrote:
>
> Yes, but you'll need to drain the oil out of the compressor and flush the system, then add the proper amount of oil that is compatible with the 134-A
>
> A better option for some of us has been to charge with Dura-Cool or Frosty-Cool. Both are a CR12-a propane/butane mix refrigerant that is widely used
> in other countries, but is not legal (for shops to install) in the US.
>
> I'm sure you will get more details on that in additional posts.
> --
> 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
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

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Re: Converting freon [message #354957 is a reply to message #354948]

Thu, 21 May 2020 16:09

6cuda6

Messages: 975
Registered: June 2019

Karma: -6

Senior Member

Yup as other have said above ^^^^..... plus R134 doesn't cool as well as R12.

Rich Mondor, Brockville, ON 77 Hughes 2600

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Re: [GMCnet] Converting freon [message #354961 is a reply to message #354955]

Thu, 21 May 2020 16:13

Emery Stora

Messages: 959
Registered: January 2011

Karma: 4

Senior Member

Yes. Duracool is about 10% more efficient than R-12. R-134a is about 10% less efficient than R-12.
I have been using Duracool for over 10 years. You don’t have to drain or flush any components. It is good to put in a new receiver/drier. That is also a filter and your old one might be partially clogged.

Emery Stora

> On May 21, 2020, at 2:51 PM, Dolph Santorine via Gmclist wrote:
>
> What Carl said.
>
> I’ve had great luck with the Dura-Cool, and have used it in other vehicles, and some other places I likely shouldn’t.
>
> It’s an excellent refrigerant, IMHO.
>
>
> 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 May 21, 2020, at 4:33 PM, Carl Stouffer via Gmclist wrote:
>>
>> Yes, but you'll need to drain the oil out of the compressor and flush the system, then add the proper amount of oil that is compatible with the 134-A
>>
>> A better option for some of us has been to charge with Dura-Cool or Frosty-Cool. Both are a CR12-a propane/butane mix refrigerant that is widely used
>> in other countries, but is not legal (for shops to install) in the US.
>>
>> I'm sure you will get more details on that in additional posts.
>> --
>> 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
>>
>> _______________________________________________
>> 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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