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Dura-COLD [message #281520] Sun, 05 July 2015 18:35 Go to next message
SeanKidd is currently offline  SeanKidd   United States
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Location: Northern Neck Virginia
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http://www.gmcmhphotos.com/photos/data/6323/image280.jpg
http://www.gmcmhphotos.com/photos/data/6323/image280.jpg

New Expansion valve, drier, weatherstrip between radiator and condenser, 2 cans of duracool. 25 psi low, 175 psi high.


Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
Re: Dura-COLD [message #281524 is a reply to message #281520] Sun, 05 July 2015 19:46 Go to previous messageGo to next message
Joe Weir is currently offline  Joe Weir   United States
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Location: Columbia, SC
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Weatherstrip between the condenser and the radiator? You lost me there.

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.
Re: Dura-COLD [message #281525 is a reply to message #281520] Sun, 05 July 2015 19:48 Go to previous messageGo to next message
Steve is currently offline  Steve   United States
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Registered: September 2013
Location: East Greenville, Pa
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Cool,

Are you running the A6 compressor or the newer style?
Dash air is on my short list. That picture may motivate me to get it done. My system was previously retrofitted to 134a. I shot one can in and things got cold for just a short time. Everything leaked out the front seal of the A6 compressor. I am trying to decide whether to get and rebuilt A6 or try the new style.


1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black
Re: Dura-COLD [message #281528 is a reply to message #281524] Sun, 05 July 2015 20:29 Go to previous messageGo to next message
Bullitthead is currently offline  Bullitthead   United States
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The weatherstrip is to make sure that all of the air pulled through the radiator is also pulled through the condenser.

Terry Kelpien ASE Master Technician 73 Glacier 260 Smithfield, Va.
Re: Dura-COLD [message #281533 is a reply to message #281520] Sun, 05 July 2015 21:10 Go to previous messageGo to next message
SeanKidd is currently offline  SeanKidd   United States
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Registered: June 2012
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Correct, original a6, also the condenser should be about 3/8" from radiator and sealed to prevent short circuiting air from the edges...my Condenser was about an inch and a half away...I have no other dash air mods...this was in recirc with 85 degree outdoor air temp. 1800 rpm. I did hunt for the coldest spot...average was probably 42ish

Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers

[Updated on: Sun, 05 July 2015 21:14]

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Re: [GMCnet] Dura-COLD [message #281541 is a reply to message #281525] Mon, 06 July 2015 01:17 Go to previous messageGo to next message
ljdavick is currently offline  ljdavick   United States
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Registered: March 2007
Location: Fremont, CA
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Steve,

If you choose to replace the front seal on your A6 I have a toolkit to facilitate swapping out the seal and replacing with a double-lip seal. I’m happy to loan it to you. There are write-ups here and there and some pix on the photo site. Quite a few fellow GMC’ers have borrowed the kit with good success.

Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, CA

> On Jul 5, 2015, at 5:48 PM, Steve Adams wrote:
>
> Cool,
>
> Are you running the A6 compressor or the newer style?
> Dash air is on my short list. That picture may motivate me to get it done. My system was previously retrofitted to 134a. I shot one can in and
> things got cold for just a short time. Everything leaked out the front seal of the A6 compressor. I am trying to decide whether to get and rebuilt
> A6 or try the new style.
> --
> 1978 GMC Royal
> Eastern Pennslyvania
> 1968 Chevrolet C20 396 Camper Special
> 1969 Chevrolet C20 Camper Special
> 1985 Buick Electra Park Avenue
> 1992 Camaro 25th Anniversary Heretage Edition Black
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
Re: Dura-COLD [message #281542 is a reply to message #281533] Mon, 06 July 2015 05:43 Go to previous messageGo to next message
Joe Weir is currently offline  Joe Weir   United States
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Registered: February 2013
Location: Columbia, SC
Karma: 7
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SeanKidd wrote on Sun, 05 July 2015 21:10
Correct, original a6, also the condenser should be about 3/8" from radiator and sealed to prevent short circuiting air from the edges...my Condenser was about an inch and a half away...I have no other dash air mods...this was in recirc with 85 degree outdoor air temp. 1800 rpm. I did hunt for the coldest spot...average was probably 42ish


Interesting. My condenser sits about 2" away on a factory bracket. Don't see how it would be adjusted or where weatherstrip would go.

Got any pics?


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.
Re: [GMCnet] Dura-COLD [message #281544 is a reply to message #281541] Mon, 06 July 2015 06:21 Go to previous messageGo to next message
Bruce Hart is currently offline  Bruce Hart   United States
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Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
Senior Member
Steve,
I have borrowed Larry's tool kit twice now, it is a life saver. Here is the
info on changing out the ceramic seal to a lip seal:
http://www.autoacforum.com/messageview.cfm?catid=20&threadid=18627
http://www.autoacforum.com/messageview.cfm?catid=20&threadid=18683

Part# ACDelco 15-30948

Many listings on E-bay


On Mon, Jul 6, 2015 at 12:17 AM, Larry Davick wrote:

> Steve,
>
> If you choose to replace the front seal on your A6 I have a toolkit to
> facilitate swapping out the seal and replacing with a double-lip seal. I’m
> happy to loan it to you. There are write-ups here and there and some pix
> on the photo site. Quite a few fellow GMC’ers have borrowed the kit with
> good success.
>
> Larry Davick
> A Mystery Machine
> 1976(ish) Palm Beach
> Fremont, CA
>
>> On Jul 5, 2015, at 5:48 PM, Steve Adams wrote:
>>
>> Cool,
>>
>> Are you running the A6 compressor or the newer style?
>> Dash air is on my short list. That picture may motivate me to get it
> done. My system was previously retrofitted to 134a. I shot one can in and
>> things got cold for just a short time. Everything leaked out the front
> seal of the A6 compressor. I am trying to decide whether to get and rebuilt
>> A6 or try the new style.
>> --
>> 1978 GMC Royal
>> Eastern Pennslyvania
>> 1968 Chevrolet C20 396 Camper Special
>> 1969 Chevrolet C20 Camper Special
>> 1985 Buick Electra Park Avenue
>> 1992 Camaro 25th Anniversary Heretage Edition Black
>>
>> _______________________________________________
>> 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:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart 1976 Palm Beach 1977 28' Kingsley La Grange, Wyoming
Re: Dura-COLD [message #281545 is a reply to message #281520] Mon, 06 July 2015 06:32 Go to previous messageGo to next message
SeanKidd is currently offline  SeanKidd   United States
Messages: 747
Registered: June 2012
Location: Northern Neck Virginia
Karma: 4
Senior Member
The rubber mounts are slotted (at least on the '73), this will buy you about 3/4...I could only get mine to about an inch..if I was unhappy with the performance was going to elongate the mounting holes on the bracket that bolts to the radiator...Actually, Vintage Air calls for up to 3/16" but not touching the radiator.Nostalgic AC is a little more liberal with 1/4"-1" spacing.

I used self stick weather-strip along the top and sides, the top I had to double up to fill the gap. I'll try to get a photo.


Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
Re: Dura-COLD [message #281551 is a reply to message #281520] Mon, 06 July 2015 07:55 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
Look on the photo site on my section for AC Seal Party. We did three of them at Ted Petty's a couple years ago, using Larry's tool kit. It did the US Tour, left here for Dolph's, dunno where it went from there. Well traveled and very useful.

--johnny


Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
Re: [GMCnet] Dura-COLD [message #281721 is a reply to message #281541] Wed, 08 July 2015 20:15 Go to previous messageGo to next message
Steve is currently offline  Steve   United States
Messages: 506
Registered: September 2013
Location: East Greenville, Pa
Karma: 1
Senior Member
Larry,
Thanks for the offer, very much appreciated. I will keep that in mind. I watched a couple of Utube video's on the process. I will let you know if I get to a point where I am ready to do it.


ljdavick wrote on Mon, 06 July 2015 02:17
Steve,

If you choose to replace the front seal on your A6 I have a toolkit to facilitate swapping out the seal and replacing with a double-lip seal. I'm happy to loan it to you. There are write-ups here and there and some pix on the photo site. Quite a few fellow GMC'ers have borrowed the kit with good success.

Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, CA

> On Jul 5, 2015, at 5:48 PM, Steve Adams wrote:
>
> Cool,
>
> Are you running the A6 compressor or the newer style?
> Dash air is on my short list. That picture may motivate me to get it done. My system was previously retrofitted to 134a. I shot one can in and
> things got cold for just a short time. Everything leaked out the front seal of the A6 compressor. I am trying to decide whether to get and rebuilt
> A6 or try the new style.
> --
> 1978 GMC Royal
> Eastern Pennslyvania
> 1968 Chevrolet C20 396 Camper Special
> 1969 Chevrolet C20 Camper Special
> 1985 Buick Electra Park Avenue
> 1992 Camaro 25th Anniversary Heretage Edition Black
>
> _______________________________________________
> 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:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black
Re: [GMCnet] Dura-COLD [message #281726 is a reply to message #281721] Wed, 08 July 2015 21:05 Go to previous message
ljdavick is currently offline  ljdavick   United States
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
Senior Member
Steve,

I over-thought this one. I worried and studied and thought some more because it was something totally new to me. I’d never worked on an AC compressor. As it turned out this poor shade-tree mechanic was able to do the job in very little time.

Say the word and I’ll send that toolkit out to you.

Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, CA

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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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