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Thread: Hole in firewall from AC delete

  1. 04-19-2020, 07:18 AM #1
    Toddlaunchbaugh
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    Hole in firewall from AC delete

    Hope everyone is doing well and enjoying some project and family time. I have a 72 T with original AC that I have removed . I am trying to source the “plug” or seal Where the ac ducting went through the firewall
    It is about 90 mm and there is a second one that is about 37mm

    What are these called and where to buy?

    Thanks in advance !!!
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  2. 04-19-2020, 07:49 AM #2
    911hunt
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    Rennline makes an A/C block off plate. https://www.rennline.com/A_C-Block-O...oductinfo/I35/
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  3. 04-19-2020, 08:41 AM #3
    Arne
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    I suspect Todd is talking about these 2 holes, which I had assumed don't exist in non-A/C cars. So I never assumed that plugs were available. Maybe from later G-model cars when A/C was the norm?

    Name: IMG_2219.jpg Views: 384 Size: 184.4 KB
    - Arne
    Current - 2018 718 Cayman, Rhodium Silver, PDK

    Sold - 1972 911T coupe, Silver Metallic; 1984 911 Carrera coupe, Chiffon white; 1973 914 2.0, Saturn Yellow; 1984 944, Silver Metallic
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  4. 04-19-2020, 09:28 AM #4
    Toddlaunchbaugh
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    Arne. Yes. I forgot to post the pic so thanks!! Those are the holes. They are causing cool air to come in!

    Btw your car is coming along nicely and go ducks!
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  5. 04-19-2020, 10:36 AM #5
    Longballa
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    Weld them up is what I do but these are cars under restoration. You could still do it though on a finished car.
    72S, 72T now ST
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  6. 04-19-2020, 12:25 PM #6
    john rice
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    During WWII the B-17 rews would return from a mission and patch up the flack and canon holes with flattened tin cans. Anyone for a little retro? This would also individualize your car. You could even leave the labels on.
    smile
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  7. 04-19-2020, 01:21 PM #7
    Chuck Miller
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    On the 'first' 1970's restoration of a 1950's Testarossa they found a front fender repaired using an aluminum stop sign... still had the printing on the inside of the fender...
    Chuck Miller
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  8. 04-19-2020, 02:16 PM #8
    ejboyd5
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    My '69 was severely hacked as part of a dealer installed A/C. After removal of the A/C, the holes were easily covered with discs made from sheet aluminum.
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  9. 04-19-2020, 06:01 PM #9
    MoparBoy72
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    If you can not find a suitable metal/rubber plug, I have had reasonable luck 3D printing stuff like this out of flexible material.

    Good luck,
    -Andrew
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  10. 04-19-2020, 08:48 PM #10
    Toddlaunchbaugh
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    Thanks everyone. I just measured twice and ordered 95 and 35 mm rubber grommets
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