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1968 a- body A/C questions
#1732102
01/17/15 01:40 PM
01/17/15 01:40 PM
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Joined: Aug 2005
Posts: 1,385 Az
69hemibeep
OP
pro stock
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OP
pro stock
Joined: Aug 2005
Posts: 1,385
Az
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My 68 valiant project is an A/C car and I would like to put the unit back together using an after market compressor. My problem is that I have two dead vacuum motors that control air doors in the box. Is there replacements anywhere or should I just go with a vintage air unit. Oh I'm adding a console will that interfere with the factory vents?
Last edited by 69hemibeep; 01/17/15 02:03 PM.
1969 Hemi Roadrunner 2nd owner
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Re: 1968 a- body A/C questions
[Re: GTSDart340]
#1732104
01/18/15 11:15 AM
01/18/15 11:15 AM
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Joined: Aug 2005
Posts: 1,385 Az
69hemibeep
OP
pro stock
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OP
pro stock
Joined: Aug 2005
Posts: 1,385
Az
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Thanks about the console, I'm bumping it back up once for the vacuum question.
1969 Hemi Roadrunner 2nd owner
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Re: 1968 a- body A/C questions
[Re: 69hemibeep]
#1732105
01/19/15 02:51 AM
01/19/15 02:51 AM
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Joined: Mar 2011
Posts: 1,655 Cut and Shoot, TX
kentj340
top fuel
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top fuel
Joined: Mar 2011
Posts: 1,655
Cut and Shoot, TX
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This is a good topic for discussion. I'll bet a lot of people have had problems with the vacuum motors, but I have never seen much discussion here. Maybe it is only the folks in AZ and Houston that care?
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If you don't see two dolphins, you need a vacation.
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Re: 1968 a- body A/C questions
[Re: 69hemibeep]
#1732106
01/19/15 05:12 PM
01/19/15 05:12 PM
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Joined: Jan 2003
Posts: 25,899 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,899
Rio Linda, CA
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As you can see, the vacuum pot halves are joined by a rolled crimp; I have tried with little success to un-crimp them. I have used a belt sander to sand away the crimp on the edge to separate the two halves and expose the innards.
The rubber diaphragm will usually be found brittle and cracked with a pushrod riveted to the center of the rubber. Grind away the rivet to remove the pushrod.
A new diaphragm can be made from thin sheet rubber (I prefer sheet silicone) and the pushrod reattached with a pop rivet. I then place the two halves of the pot together and clamp them securely and then use liberal amounts of epoxy on the previously crimped rim to hold them together.
I have successfully "saved" a couple of pots that were impossible to find in usable condition.
The INTERNET, the MISinformation superhighway
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