WTB, heater box vacuum pot - Chevelle Tech
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post #1 of 11 (permalink) Old Sep 8th, 19, 9:43 AM Thread Starter
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Roger
 
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WTB, heater box vacuum pot

I'm looking for one of the vacuum pots that go on the HVAC box of an 81 Z28. I suspect that GM used the same vacuum pot on multiple applications.

The one I have is rusted and I don't know how long or if it will survive. I really don't want to pull the HVAC box again soon. I haven't been able to locate it in any of the catalogs I have and I doubt GM make replacements. I've attached pics of what I'm looking for.
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1981 Camaro Z28
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post #2 of 11 (permalink) Old Sep 8th, 19, 12:21 PM
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Mr Bill
 
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Re: WTB, heater box vacuum pot

First of all is there a part number on it ?

I dont have a GM parts catalog for that year here at home but if you can get someone to look up the part number you should be able to find one. I have been able to get everything I have needed for my Wife's 84 Riviera by going that route. Just got an NOS catalytic converter for it about a week ago Ebay is your friend.
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post #3 of 11 (permalink) Old Sep 8th, 19, 1:57 PM
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Re: WTB, heater box vacuum pot

https://www.ebay.com/i/332182562761?...hoCnioQAvD_BwE
https://www.rickscamaros.com/rick-s-...1968-1976.html
https://www.oldairproducts.com/produ...s/vacuum-parts

Not sure any of these will work, but the theory that they are all the same part might be out the window. The first link is most specific to your application but it's plastic.
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post #4 of 11 (permalink) Old Sep 8th, 19, 9:08 PM Thread Starter
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Re: WTB, heater box vacuum pot

The pot on Old Air Products 'appears' to be exactly what I need. I looked on their web site and didn't find that pot.
Gonna order tomorrow.
Thanks for the help.
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post #5 of 11 (permalink) Old Sep 9th, 19, 3:38 AM
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Re: WTB, heater box vacuum pot

That is the two way one that sits between the firewall and hvac box. Terrible to get to and if it goes bad there is no real control over where the air is directed.
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post #6 of 11 (permalink) Old Sep 9th, 19, 9:34 AM Thread Starter
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Re: WTB, heater box vacuum pot

Philip, your comment about this pot being "terrible to get to", may be an under statement. I removed the HVAC box to replace the heater core. The car is an '81 and the heater core was original, so I thought preventive maintenance was a good thing. Well getting the box out of the car was a PITA, then figuring out how to get the heater core out of the box was another adventure. I've read stories about how guys replace the heater core with the HVAC box on the floor board of the car. They have to be More experienced than me.
Based on the picture, I think this is the vacuum pot I need. Will see in a couple days when it arrives.
I really do appreciate everyone's help in locating this pot. A bunch of Good Guys on this site.
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post #7 of 11 (permalink) Old Sep 9th, 19, 9:37 AM Thread Starter
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Re: WTB, heater box vacuum pot

BTW, there is no part number on the original pot. That would have made the whole process too easy.
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post #8 of 11 (permalink) Old Sep 28th, 19, 8:14 PM
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Re: WTB, heater box vacuum pot

Did you find one yet?

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post #9 of 11 (permalink) Old Sep 28th, 19, 9:03 PM Thread Starter
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Re: WTB, heater box vacuum pot

Yes, the one from Old Air Products was the exact item. Still no part number on the part.
Thanks for the help.
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post #10 of 11 (permalink) Old Sep 28th, 19, 11:08 PM
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Re: WTB, heater box vacuum pot

I was going to offer you a used one, but the life may be short lived. New is better.
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post #11 of 11 (permalink) Old Sep 29th, 19, 10:13 AM Thread Starter
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Roger
 
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Re: WTB, heater box vacuum pot

Philip, where that vacuum pot is located, I'm hoping for a looooooooooong and trouble free life. But I do appreciate your kind thoughts. You must be a real car guy.

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