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[GMCnet] passenger cooling [message #321680] Sat, 05 August 2017 23:12 Go to next message
johnd01 is currently offline  johnd01   United States
Messages: 354
Registered: July 2017
Location: Sacrameot
Karma: -1
Senior Member
Has anyone had problems driving with the roof vents open?
Has anyone made and air scoop to for the toll booth windows?
My VIN says this is 1974, what refrigerant should I try to see if there is
any life in my dash air?

--

*John Phillips*
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Johnd01 John Phillips Avion A2600 TZE064V101164 Rancho Cordova, CA (Sacramento)
Re: [GMCnet] passenger cooling [message #321682 is a reply to message #321680] Sun, 06 August 2017 04:28 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
I do not drive with the roof vents open. You might open it an inch or so but I'm afraid or breaking the cover flapping in the wind. You can always open a side window or two if you want more flow through ventilation.

The giggest thing to do on the toll window air deflector is get a set of wind wings from Blaine Merrell. Fell free to call him so you can select your color.

http://www.bdub.net/blainemerrell/



Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] passenger cooling [message #321683 is a reply to message #321680] Sun, 06 August 2017 07:33 Go to previous messageGo to next message
bdub is currently offline  bdub   United States
Messages: 1578
Registered: February 2004
Location: Central Texas
Karma: 5
Senior Member

Roof vents can be open a little. I wouldn't open them all the way though.
I have forgotten them and left them open and it didn't hurt anything, but I
think it eventually would.

Blaine Merrells Wind Wings is what you're looking for. They'll give you
plenty of fresh air.
http://appliedgmc.com/prod.itml/icOid/462

Your GMC came with R12 installed. Look for a tag that indicates otherwise.
Also, the service valves are different for 134.
https://search.yahoo.com/yhs/search?p=134+service+valve+adapter&ei=UTF-8&hsp
art=mozilla&hsimp=yhs-021
R12 valve is a threaded flare fitting.

hth
bdub


-----Original Message-----
From: Gmclist On Behalf Of John Phillips
Sent: Saturday, August 5, 2017 11:12 PM
Has anyone had problems driving with the roof vents open?
Has anyone made and air scoop to for the toll booth windows?
My VIN says this is 1974, what refrigerant should I try to see if there is
any life in my dash air?


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bdub
'76 Palm Beach/Central Texas
www.bdub.net
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www.gmcmotorhomemarketplace.com
www.gmcmhregistry.com
www.facebook.com/groups/classicgmcmotorhomes
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Re: [GMCnet] passenger cooling [message #321684 is a reply to message #321680] Sun, 06 August 2017 07:49 Go to previous messageGo to next message
Richard Denney is currently offline  Richard Denney   United States
Messages: 920
Registered: April 2010
Karma: 9
Senior Member
All original GMC air conditioning systems used R12, which is difficult to
find and expensive when you do. You can also recharge it with Durakool,
HC12a, or whatever the current HC equivalent is. Converting to R134,
however, isn't easy.

And yes to the Wind Wings.

Rick "some vent products can be open while driving, but not the originals"
Denney


On Sun, Aug 6, 2017 at 12:13 AM John Phillips
wrote:

> Has anyone had problems driving with the roof vents open?
> Has anyone made and air scoop to for the toll booth windows?
> My VIN says this is 1974, what refrigerant should I try to see if there is
> any life in my dash air?
>
> --
>
> *John Phillips*
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Rick Denney
73 x-Glacier 230 "Jaws"
Off-list email to rick at rickdenney dot com
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Re: [GMCnet] passenger cooling [message #321686 is a reply to message #321680] Sun, 06 August 2017 08:25 Go to previous messageGo to next message
Jim Galbavy is currently offline  Jim Galbavy   
Messages: 1443
Registered: August 2007
Karma: 7
Senior Member
Mine is a 1973. Installed hoods over the roof vents after I snapped off one drag racing
with JimB. Hoods are cheap, EZ to install, and you can leave the vents open in storage or
on the road and not get rain in.

Wind wings are great and in my opinion a must.

We restored my coach 14 years ago and installed a Vintage Air that TEE'd into the R-12 dash
unit and have added only one can of R-12 in all these years.

Wink

jim Galbavy
'73 x-CL ANNIE
Lake Mary, FL

[Updated on: Sun, 06 August 2017 08:26]

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Re: [GMCnet] passenger cooling [message #321687 is a reply to message #321686] Sun, 06 August 2017 08:39 Go to previous messageGo to next message
Kingsley Coach is currently offline  Kingsley Coach   United States
Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada
Karma: -34
Senior Member
John

If you would add your location and GMC model to your signature lin where
you only have John Phillips it would be handy.
Does John Shotwell have your TZE number?
Have you signed up for the "Black" list aka the GMC Assist list?

Thanks

Mike in NS

On Sun, Aug 6, 2017 at 10:25 AM, Jim Galbavy wrote:

> Mine is a 1973. Installed hoods over the roof vents after I snapped off
> one drag racing
> with JimB. Hoods are cheap, EZ to install, and you can leave the vents
> open in storage and
> not get rain in.
>
> Wind wings are great and in my opinion a must.
>
> We restored my coach 14 years ago and installed a Vintage Air that TEE'd
> into the R-12 dash
> unit and have added only one can of R-12 in all these years.
>
> ;)
>
> jim Galbavy
> '73 x-CL ANNIE
> Lake Mary, FL
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>



--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS

Life is too short to hold a grudge; slash some tires and call it even !
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Re: [GMCnet] passenger cooling [message #321691 is a reply to message #321680] Sun, 06 August 2017 09:54 Go to previous messageGo to next message
Matt Colie is currently offline  Matt Colie   United States
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
Senior Member
johnd01 wrote on Sun, 06 August 2017 00:12
Has anyone had problems driving with the roof vents open?
Has anyone made and air scoop to for the toll booth windows?
My VIN says this is 1974, what refrigerant should I try to see if there is
any life in my dash air?
--
*John Phillips*


John,

Welcome to the group, family, cult, asylum.....

You came aboard about a week ago and I missed welcoming you at that time.

You don't say how long you have owned, but that is only important so we know what history you have.

We usually run with the rear vent open about an inch.

You have been told where to source wind wings. If you can get to a work rally, there will probably be someone there that assist installing them.

About the coach air:
If it was not converted to R-134, it will still have 1/4 SAE flares at the access fittings. If it does, it is well worth your while to get and install the adapters for R-134 because that is what is standard with HC-12 these days.
If it still has the 1/4 flare fittings then it was never charged with R-134 and that is good.
If it was changed to R-134, you can still put HC-12a into the system, but not R-12 even if you do have some.

Before you do much else though, take a cap off and poke the valve inside. If something comes out, that is great. It means the system has not inhaled air (and moisture). If the system has no pressure in it, you should plan to buy a receiver/dryer and replace that before the final charge (attempt).

If you have no pressure in the system, you will need a vacuum pump. These can often be rented. Do not try to use the cheap air powered pump from Hazard Fright. If it does not pull down and stay down, then get some HC-12a with dye and charge the system with at first. You will be need a UV light to make the dye light up. When (if) you find and repair the leak, then charge the system with HC-12a such that you see about 25psi on the low side with the engine at about 1500 (a little off idle if you don't have a tach handy.

You don't have a meaningful sigfile, but be aware that I you live in southern climes and have a pre-77 coach, the A/C will not impress you.

Speaking of sigfiles, without knowing your mail client and you working the e-mail side, I don't know the specifics, but it will help us help you more if you build a sigfile that starts with your name has a bit about the coach (year, model and major mods) and a geographic reference so any others that may be in striking range will know that they could provide assistance. This happens a lot in this group.

And about this group. You found your way here and that is great. You have just collected a couple thousand brand new old friends that have a very specific agenda. That agenda is to see that you enjoy your coach as much as we all enjoy ours. This is an amazing and supportive group. You will find your coach is not just another toy, but it connects you to a community that has resources that are more than you might have imagined. The only other community that I know of that is like this is that of the watermen that are my world. For that reason, I like to welcome new owners here much as a new owner or vessel is welcomed there. So,

May the Good Lord bless this coach and all those that set forth within her.

Welcome John

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
Re: [GMCnet] passenger cooling [message #321692 is a reply to message #321691] Sun, 06 August 2017 10:39 Go to previous messageGo to next message
tphipps is currently offline  tphipps   United States
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
Senior Member
There are several different designs of vent covers that will allow you to open the roof air vents and not allow rain to enter the coach. They are rigid enough to run down the road and have the vents open for a more air flow through experience. I leave my roof air vents open even when parked to get some air exchange in the coach at rest.
Tm, MS II


2012 Phoenix Cruiser model 2552 KA4CSG
Re: [GMCnet] passenger cooling [message #321693 is a reply to message #321692] Sun, 06 August 2017 11:14 Go to previous messageGo to next message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
Karma: -62
Senior Member
My Royale has a 14 x 14 vent in the rear that has a reversible fan. Similar
to a fantastic fan but it is covered by a rear faced shroud that does not
open or close. I had my upholstery gal make a snap on cover of naugahyde
for the cold weather. We get very good ventilation by opening the toll
booth windows and running the fan on low or medium speed. 75% of the time,
that is all that is required.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Aug 6, 2017 8:40 AM, "Thomas Phipps" wrote:

> There are several different designs of vent covers that will allow you to
> open the roof air vents and not allow rain to enter the coach. They are
> rigid enough to run down the road and have the vents open for a more air
> flow through experience. I leave my roof air vents open even when parked to
> get some air exchange in the coach at rest.
> Tm, MS II
> --
> 1975 GMC Avion
> KA4CSG
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Re: [GMCnet] passenger cooling [message #321695 is a reply to message #321687] Sun, 06 August 2017 13:07 Go to previous messageGo to next message
johnd01 is currently offline  johnd01   United States
Messages: 354
Registered: July 2017
Location: Sacrameot
Karma: -1
Senior Member
I have a 75 Avion VIN A26000 built on TZE064V101164
I am 10 miles East of Sacramento, CA
I registered with John Shotwell and black list today.


On Sun, Aug 6, 2017 at 6:39 AM, Kingsley Coach
wrote:

> John
>
> If you would add your location and GMC model to your signature lin where
> you only have John Phillips it would be handy.
> Does John Shotwell have your TZE number?
> Have you signed up for the "Black" list aka the GMC Assist list?
>
> Thanks
>
> Mike in NS
>
> On Sun, Aug 6, 2017 at 10:25 AM, Jim Galbavy wrote:
>
>> Mine is a 1973. Installed hoods over the roof vents after I snapped off
>> one drag racing
>> with JimB. Hoods are cheap, EZ to install, and you can leave the vents
>> open in storage and
>> not get rain in.
>>
>> Wind wings are great and in my opinion a must.
>>
>> We restored my coach 14 years ago and installed a Vintage Air that TEE'd
>> into the R-12 dash
>> unit and have added only one can of R-12 in all these years.
>>
>> ;)
>>
>> jim Galbavy
>> '73 x-CL ANNIE
>> Lake Mary, FL
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
>
> --
> Michael Beaton
> 1977 Kingsley 26-11
> 1977 Eleganza II 26-3
> Antigonish, NS
>
> Life is too short to hold a grudge; slash some tires and call it even !
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>



--

*John Phillips*
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Johnd01 John Phillips Avion A2600 TZE064V101164 Rancho Cordova, CA (Sacramento)
Re: [GMCnet] passenger cooling [message #321697 is a reply to message #321695] Sun, 06 August 2017 13:24 Go to previous message
jimk is currently offline  jimk   United States
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member
John,
Go to our web site and you'll see two style wind wigs for the Toll window.
The MAXX AIR vent have duel arms and that allows one to run with vent up.
Naturally you do not want it it scoop air but vent.
Jim Bounds of Coop and I prefer the Maxx Air over the Fantastic as the
Fantastic specifically states not to run down the road with it open.

On Sun, Aug 6, 2017 at 11:07 AM, John Phillips
wrote:

> I have a 75 Avion VIN A26000 built on TZE064V101164
> I am 10 miles East of Sacramento, CA
> I registered with John Shotwell and black list today.
>
>
> On Sun, Aug 6, 2017 at 6:39 AM, Kingsley Coach
> wrote:
>
>> John
>>
>> If you would add your location and GMC model to your signature lin where
>> you only have John Phillips it would be handy.
>> Does John Shotwell have your TZE number?
>> Have you signed up for the "Black" list aka the GMC Assist list?
>>
>> Thanks
>>
>> Mike in NS
>>
>> On Sun, Aug 6, 2017 at 10:25 AM, Jim Galbavy wrote:
>>
>>> Mine is a 1973. Installed hoods over the roof vents after I snapped
> off
>>> one drag racing
>>> with JimB. Hoods are cheap, EZ to install, and you can leave the vents
>>> open in storage and
>>> not get rain in.
>>>
>>> Wind wings are great and in my opinion a must.
>>>
>>> We restored my coach 14 years ago and installed a Vintage Air that
> TEE'd
>>> into the R-12 dash
>>> unit and have added only one can of R-12 in all these years.
>>>
>>> ;)
>>>
>>> jim Galbavy
>>> '73 x-CL ANNIE
>>> Lake Mary, FL
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>>
>>
>>
>> --
>> Michael Beaton
>> 1977 Kingsley 26-11
>> 1977 Eleganza II 26-3
>> Antigonish, NS
>>
>> Life is too short to hold a grudge; slash some tires and call it even !
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
>
>
> --
>
> *John Phillips*
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>



--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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