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Climate controls [message #256282] Wed, 23 July 2014 17:33 Go to next message
thorndike is currently offline  thorndike   United States
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After looking at pictures of lots of dashboard improvements, I noticed that just about everyone still had the old climate controls even though the rest of the dash might be digital. What is the reason for that? Is there something special about this panel or controls that can't easily be replaced?

Robert Peesel 1976 Royale 26' Side Dry Bath Conifer, Colorado
Re: Climate controls [message #256283 is a reply to message #256282] Wed, 23 July 2014 17:46 Go to previous messageGo to next message
Richard Andis is currently offline  Richard Andis   United States
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From my understanding, the climate controls are essentially a vacuum powered micro processer. Certain things happen at certain times depending on where the levers are set. There's a valve that controls the whole operation. Not sure if there's an electrical substitute.

Valhalla - 1978 GMC Royale rear twin [SOLD]
Walküre - 1974 VW Thing (Toad)
Re: Climate controls [message #256284 is a reply to message #256282] Wed, 23 July 2014 17:57 Go to previous messageGo to next message
Bob de Kruyff   United States
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thorndike wrote on Wed, 23 July 2014 16:33
After looking at pictures of lots of dashboard improvements, I noticed that just about everyone still had the old climate controls even though the rest of the dash might be digital. What is the reason for that? Is there something special about this panel or controls that can't easily be replaced?

The main airbox uses mechanical doors driven either through vacuum "motors" and a cable for temperature control. I suppose someone could put a lot of effort into accomodating a newer style but it would be time consuming. Most newer heads are designed for electric actuators.


Bob de Kruyff
78 Eleganza
Chandler, AZ
Re: Climate controls [message #256287 is a reply to message #256282] Wed, 23 July 2014 18:05 Go to previous messageGo to next message
C Boyd is currently offline  C Boyd   United States
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Joe Ekl put a digical unit in his out of a GMC pick up. I dont have Joes contact info handy but he is a member of International and has given seminars on keys and steering columns. Very nice guy.


thorndike wrote on Wed, 23 July 2014 18:33
After looking at pictures of lots of dashboard improvements, I noticed that just about everyone still had the old climate controls even though the rest of the dash might be digital. What is the reason for that? Is there something special about this panel or controls that can't easily be replaced?



C. Boyd
76 Crestmont
East Tennessee
Re: Climate controls [message #256289 is a reply to message #256287] Wed, 23 July 2014 18:13 Go to previous messageGo to next message
Richard Andis is currently offline  Richard Andis   United States
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This is basically what you're dealing with

http://www.gmcmhphotos.com/photos/data/6338/GMC_Climate.jpg

http://www.gmcmhphotos.com/photos/data/6338/GMC_Climate.jpg


Valhalla - 1978 GMC Royale rear twin [SOLD]
Walküre - 1974 VW Thing (Toad)
Re: [GMCnet] Climate controls [message #256290 is a reply to message #256282] Wed, 23 July 2014 18:18 Go to previous message
USAussie is currently offline  USAussie   United States
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Robert,

I attended a seminar at a GMCMI Convention that Joe Eckl put on regarding using a later model vehicle climate control system and
panel. I listened carefully and decided the amount of work it took did not justify the rewards.

Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
USA '75 Avion - Double Trouble TZE365V100426
AUS '75 Avion - The Blue Streak TZE365V100428


-----Original Message-----
From: Robert Peesel

After looking at pictures of lots of dashboard improvements, I noticed that just about everyone still had the old climate controls
even though the rest of the dash might be digital. What is the reason for that? Is there something special about this panel or
controls that can't easily be replaced?
--
Robert

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
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