Air Conditioning Control Panel
Thread Starter
Burning Brakes
Joined: Jan 2010
Posts: 967
Likes: 109
From: Europe, Germany
Air Conditioning Control Panel
I have a new issue 
When I turn the wheels to set another position, the indicator does not move , both sides
Is there an easy trick to repair this or do I have to disassemble the panel ?
And if ... how ?
Thanks a lot in advance
Frank
When I turn the wheels to set another position, the indicator does not move , both sides
Is there an easy trick to repair this or do I have to disassemble the panel ?
And if ... how ?
Thanks a lot in advance
Frank
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
The 'drive strings' appear to be intact on both wheels. So, the possibilities of failure are: the indicators have come loose from those strings (possible but not so likely); the side-mounted cog wheel that engages with the [larger] drive wheel is not doing its job; or [most likely] the strings have stretched so that there is not enough tension on them to cause the indicator to move. Along with this last possibility, there could be some problem with the tension spring that this drive string is to pass over, such that no tension is being applied.
In any event, I think you need to disassemble the control head...at least to the point of finding and fixing the fault.
P.S. If you have to replace any of that string, you need to do so with a proper replacement. That string is tightly woven and is impregnated with wax (or some other water-resistant substance) so that it won't stretch with additional humidity. Regular string won't get the job done on this. Google is your "friend" for finding the right stuff.
In any event, I think you need to disassemble the control head...at least to the point of finding and fixing the fault.
P.S. If you have to replace any of that string, you need to do so with a proper replacement. That string is tightly woven and is impregnated with wax (or some other water-resistant substance) so that it won't stretch with additional humidity. Regular string won't get the job done on this. Google is your "friend" for finding the right stuff.
Last edited by 7T1vette; Dec 30, 2012 at 02:11 PM.
Thread Starter
Burning Brakes
Joined: Jan 2010
Posts: 967
Likes: 109
From: Europe, Germany
Meanwhile I found this :
http://www.corvettemagazine.com/1968...panel-rebuild/
and the cause of my problem:
The indicator has 3 small pins that have somekind of wrapped with the string, but at both indicators 1 is broken
Do you think I can glue the string to the indicator ?
http://www.corvettemagazine.com/1968...panel-rebuild/
and the cause of my problem:
The indicator has 3 small pins that have somekind of wrapped with the string, but at both indicators 1 is broken
Do you think I can glue the string to the indicator ?
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
No. Well, I guess you could; but the indicator would no longer be self-adjusting.
The way it works is that the indicator is entertwined with that string...but not held in-place. When assembled, it is unnecessary to position that indicator. Anywhere you place it is OK.
Then, when fully assembled, the thumbwheels are turned slowly, BOTH ways to the extremes of their travel. When the indicators bump into the end of travel [at either end], the string will still slide through the tangs on the indicator..even if the wheel has not traveled to its extreme. Once the wheel does hit its 'stop', the indicator is then in its proper placement.
If you just glue it, you'd better be RIGHT!!
The way it works is that the indicator is entertwined with that string...but not held in-place. When assembled, it is unnecessary to position that indicator. Anywhere you place it is OK.
Then, when fully assembled, the thumbwheels are turned slowly, BOTH ways to the extremes of their travel. When the indicators bump into the end of travel [at either end], the string will still slide through the tangs on the indicator..even if the wheel has not traveled to its extreme. Once the wheel does hit its 'stop', the indicator is then in its proper placement.
If you just glue it, you'd better be RIGHT!!
Last edited by 7T1vette; Dec 30, 2012 at 02:40 PM.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
It is not that scary, if you are careful and take GOOD note of how it comes apart. Even if you want to attempt a rebuild of the indicators (they are relatively available and not expensive to replace), you would still have to disassemble some of that control head.
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Team Owner
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From: Southbound
Cruise-In II Veteran
Thread Starter
Burning Brakes
Joined: Jan 2010
Posts: 967
Likes: 109
From: Europe, Germany
Hi Mike,
I have bought an old one with good needles. The plan is just exchange the needles. Thats why I asked if someone has ever tried it without disassembling everything
Thanks
Frank
I have bought an old one with good needles. The plan is just exchange the needles. Thats why I asked if someone has ever tried it without disassembling everything
Thanks
Frank
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
You must remove the top plate and lenses to get to the indicators. I think [not positive...it's been several years since I was inside of one] that you can remove the (4) corner screws from underneath to get that top plate off.
Thread Starter
Burning Brakes
Joined: Jan 2010
Posts: 967
Likes: 109
From: Europe, Germany
I have tried to disassemble the old one .... no chance without destroying the plate. They are held together by deforming the plate and when you try to rebend it , it will break
:
So I ended up in ordering this kit :
http://willcoxcorvette.com/product_i...oducts_id=6815
Hopefully it arrives soon
:So I ended up in ordering this kit :
http://willcoxcorvette.com/product_i...oducts_id=6815
Hopefully it arrives soon
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
Well, that's an easy fix. I know that I've had mine apart before (cleaned the lenses, etc.); and it's back together now. I may have carefully bent [or broken off] only what was needed to get it apart, then locked it down in other places. If your's can't go together that way, there's always a bit of JB-Weld epoxy putty that can be placed in strategic spots to keep it together.
Intermediate
Joined: Jun 2014
Posts: 41
Likes: 1
pulley replcement
Hi all,
I know this is an old post, just wondering if anyone knows of a suitable replacement for the small pulleys on the air conditioner controls that the string goes around at each end.
One of mine is MIA, didnt really want to purchase a whole rebuild kit for the one tiny pulley.
Any thoughts appreciated
I know this is an old post, just wondering if anyone knows of a suitable replacement for the small pulleys on the air conditioner controls that the string goes around at each end.
One of mine is MIA, didnt really want to purchase a whole rebuild kit for the one tiny pulley.
Any thoughts appreciated
Former Vendor
Joined: Mar 2011
Posts: 6,215
Likes: 152
From: spring branch Texas
Hi all,
I know this is an old post, just wondering if anyone knows of a suitable replacement for the small pulleys on the air conditioner controls that the string goes around at each end.
One of mine is MIA, didnt really want to purchase a whole rebuild kit for the one tiny pulley.
Any thoughts appreciated
I know this is an old post, just wondering if anyone knows of a suitable replacement for the small pulleys on the air conditioner controls that the string goes around at each end.
One of mine is MIA, didnt really want to purchase a whole rebuild kit for the one tiny pulley.
Any thoughts appreciated
geopar@gvtc.com
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
All the heater control small parts are listed on our website. I also have detailed instructions on how to rebuild the control there too. If it is only one wheel.. I suggest you give sales a call on Monday. They can put this in a envelope and mail it to you way cheaper than what the website will calculate.
Corvette Heater Control Rebuild Suggestions 1968-1976
Heater Control Small Parts
http://willcoxcorvette.com/advanced_...ater%20control
Pulley
http://willcoxcorvette.com/product_i...ducts_id=25608
Corvette Heater Control Rebuild Suggestions 1968-1976
Heater Control Small Parts
http://willcoxcorvette.com/advanced_...ater%20control
Pulley
http://willcoxcorvette.com/product_i...ducts_id=25608
Last edited by Willcox Corvette; Jul 26, 2014 at 12:01 PM.
Intermediate
Joined: Jun 2014
Posts: 41
Likes: 1
All the heater control small parts are listed on our website. I also have detailed instructions on how to rebuild the control there too. If it is only one wheel.. I suggest you give sales a call on Monday. They can put this in a envelope and mail it to you way cheaper than what the website will calculate.
Corvette Heater Control Rebuild Suggestions 1968-1976
Heater Control Small Parts
http://willcoxcorvette.com/advanced_...ater%20control
Pulley
http://willcoxcorvette.com/product_i...ducts_id=25608
Corvette Heater Control Rebuild Suggestions 1968-1976
Heater Control Small Parts
http://willcoxcorvette.com/advanced_...ater%20control
Pulley
http://willcoxcorvette.com/product_i...ducts_id=25608