Gasket on the firewall behind the evaporator box? - Team Camaro Tech
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post #1 of 8 (permalink) Old Jun 10th, 01, 11:05 AM Thread Starter
 
Join Date: Dec 2000
Location: Dallas, Texas
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Question

I am adding a facory A/C unit from an old parts car to my 67 convert. (that originally had no a/c). Its got the original 275 hp 327 with a powerglide trans., only about 70,000 original miles. This car is very stock and original in everyway. That's why I want to put in original factory air and not an aftermarket a/c. The reason I'm asking is because in the "1967 Chassis Service Manual" pg. 1A-51 Fig. 66 looks as though there's a gasket. On pg. 205 of my "1967 Camaro Assembly Manual" it looks as though there isn't a gasket. I've looked through my Camaro sales catalogs and none of the major suppliers have such a gasket listed, though they do sell part of the evaporator box itself. If anyone out there knows if I need a gasket to be correct, please respond! Where might I buy such an item? An auto A/C place? Also, if anyone out there has any experience with such an A/C convertion, please let me know of any unwanted suprises I might encounter in the future. Thanks for any information, people!!
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post #2 of 8 (permalink) Old Jun 10th, 01, 11:56 AM
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Do you know that the firewalls are different for an A/C car and a non A/C car?? The cut outs for the boxes are completely different. You'll need a donor firewall.
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post #3 of 8 (permalink) Old Jun 10th, 01, 02:34 PM Thread Starter
 
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Thanks... I know about the firewall differences. I have the firewall from the donor car. I intend to graph it into my original firewall. When I took the evaporator box off from the parts car, there wasn't a gasket between the box and the firewall. I just don't know if this is
correct. Gasket or no..?
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post #4 of 8 (permalink) Old Jun 10th, 01, 04:20 PM
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Carl
 
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My '68 had no gasket, just a bead of caulk.

1968 AIM UPC C60 D1 shows and lists a 3/8" diameter "sealant compound."

------------------
The Red Beast http://www.geocities.com/casanoc
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post #5 of 8 (permalink) Old Jun 10th, 01, 07:49 PM
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On 2 '69 A/C cars I've done, the sealer was the consistancy of puty, so I used rope caulk, which you can get at just about any hardware store. The one car had a bead of silcone-like stuff around the outside, I think due to the evaporator being replaced at one time.

I think rope-caulk should do the trick for ya.

Keith
'69 RS/SS 502
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post #6 of 8 (permalink) Old Jun 11th, 01, 03:50 AM
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Ditto on the rope caulk trick.

Roy
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post #7 of 8 (permalink) Old Jun 11th, 01, 04:37 AM
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Gary
 
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I used 3M "Strip Caulk" which I got from an Automotive paint supply house. It's black, and is easy to use. I used it between the evaportator halves, as well as against the firewall.
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post #8 of 8 (permalink) Old Jun 11th, 01, 07:28 AM Thread Starter
 
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Thanks a lot for the feedback everyone!! I hadnít thought about an automotive caulk. I
think Iím going to go with the 3-M product. Thereís an automotive paint store close by
and I need to pick up some paint stripper anyway. I know they sell 3-M products there and Iíve like their quality in the past.
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