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Gasket sealing for vintage airboxes?

Discussion in 'Technical Q&A' started by randomlambo, Sep 9, 2025.

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  1. randomlambo

    randomlambo Formula Junior

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    #1 randomlambo, Sep 9, 2025
    I have this airbox set that was restored...the inside lip used to have a sponge sealant for when the cover sits on the main body and I'm thinking I should use a rubber/silicone strip/bead all around to seal it...

    Any recommendations for a product? Maybe some high temp, 1/2" wide rubber/silicone gasket that has one side with adhesive? Am I getting too specific? :)

    Thoughts and opinions very much welcome!
     
  2. randomlambo

    randomlambo Formula Junior

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    #2 randomlambo, Sep 9, 2025
  3. mikey64

    mikey64 Formula Junior
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    #3 mikey64, Sep 9, 2025
    mcmaster-carr is probably a good source to find something that will work
     
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  4. randomlambo

    randomlambo Formula Junior

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    #4 randomlambo, Sep 9, 2025
  5. Kevin Rev'n

    Kevin Rev'n Two Time F1 World Champ
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    #5 Kevin Rev'n, Sep 10, 2025
    I am thinking you will need to cut the shape you want from a foam sheet.

    try searching for:

    closed cell heat resistant foam sheet

    or something like that.
     
  6. randomlambo

    randomlambo Formula Junior

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    #6 randomlambo, Sep 11, 2025
    Are you thinking more of making like a gasket material? I think that would be very difficult to cut without a pattern given that this airbox cover is maybe 2 ft long by 4" wide...I was thinking of just going around the inner perimeter with a one-sticky sided high temp rubber so it seals together when screwed back on...
     
  7. randomlambo

    randomlambo Formula Junior

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    #7 randomlambo, Sep 18, 2025 at 11:39 PM
  8. omega_jeff

    omega_jeff Rookie

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    #8 omega_jeff, Sep 19, 2025 at 5:36 PM
    Did you end up using the gasket material from McMaster-Carr from the link in Post #4?
     
  9. randomlambo

    randomlambo Formula Junior

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    #9 randomlambo, Sep 20, 2025 at 10:01 PM
    No, I found a $8 Amazon neoprene (high temp apparently?) rubber that is 0.5" wide and only 1/16" thick...will report back once these are back on...
     
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  10. randomlambo

    randomlambo Formula Junior

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    #10 randomlambo, Sep 20, 2025 at 10:06 PM
    Whatever you use have a heat gun for the short ends where the rubber will try to lift due to the angle...heat it up along with the metal cover (the rubber has adhesive on the back side) and then press it down when hot and it will stick nicely and stay that way.
     
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