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Thread: Airbox seal

  1. #1

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    Default Airbox seal

    Im looking to start cleaning up my baffling and closing some holes for better cooling, and I'm curious what people are doing around the airbox. I bought the leather seal, but it doesn't fit with my cowl. I think it's a custom made cowl after the pa22/20 conversion, but I'm not sure. Any of you done anything else to seal the area around it? I had considered a quick drying type silicon sealant with suran wrap around the cowl metal to prevent it from sticking to it. Ideas?

  2. #2

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    Default Re: Airbox seal

    My advice: Go find a real certified mechanic and let him look at your issue and fix it. Don't put your leather seal, "suran wrap", "silicon sealant" or anything else on this airplane and ruin it. You are obviously in need of a real A & P mechanic to help your sort your issue. Just find the good A&P and ask him if you have an issue and how he would repair it to be as original as possible. The original design was good. Don't change it if you don't have an advanced degree in Aero/Thermodynamic/Mechanical/Aerospace/Design/Engineering and choose to do your Masters thesis in engine cooling or ram/air induction phenomenology. Leave it STOCK, or put it back STOCK and original. Just try to put it back like it was the day it left the factory and you will be so happy. You will be so happy. Trust me.

  3. #3

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    Default Re: Airbox seal

    I'm not quite as hopeless as you've come to conclude. The leather seal WAS stock. My cowl however, is not stock, and to take it back to stock, id need a big hole for a nose gear that I have no intention of putting back on. Im not friends with any mechanics that care to go look at my plane and offer their suggestions without charging me for it. I'd much rather get some great ideas that have worked for people who operate these planes, and take that information to my mechanic for execution. During the annual, the only advice i got from the IA was to cover the hole left in the nose bowl by the new starter. And among other things, that's what I intend to do. The airbox remains a point of ingress for ram Air into the lower cowl, and this impedes the creation of an air pressure difference with the upper cowl. If anyone has any ideas, or experience with sealing a non standard airbox opening, is be very interested to hear what you've done. I understand some have used silicon baffle material for this, but I'd love first hand experience. Thanks!

  4. #4
    CamTom12's Avatar
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    Default Airbox seal

    Post a picture of the gap, but Iím betting some baffle seal material would cover it.

  5. #5
    Administrator Steve Pierce's Avatar
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    Default Re: Airbox seal


  6. #6

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    Default Re: Airbox seal

    Quote Originally Posted by Subsonic View Post
    My advice: Go find a real certified mechanic and let him look at your issue and fix it. Don't put your leather seal, "suran wrap", "silicon sealant" or anything else on this airplane and ruin it. You are obviously in need of a real A & P mechanic to help your sort your issue. Just find the good A&P and ask him if you have an issue and how he would repair it to be as original as possible. The original design was good. Don't change it if you don't have an advanced degree in Aero/Thermodynamic/Mechanical/Aerospace/Design/Engineering and choose to do your Masters thesis in engine cooling or ram/air induction phenomenology. Leave it STOCK, or put it back STOCK and original. Just try to put it back like it was the day it left the factory and you will be so happy. You will be so happy. Trust me.

    WOW great response, not...

  7. #7

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    Default Re: Airbox seal

    Mine was not sealed very well when we bought it so I added some aluminum strips and baffle material to seal it up. Its now sealed but looks ugly so I will rework it during the annual. Its a fairly simple process to make a seal with baffle material and aluminum strips as needed and pop rivet things together.

  8. #8

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    Default Re: Airbox seal

    Quote Originally Posted by Broncoformudv View Post
    Mine was not sealed very well when we bought it so I added some aluminum strips and baffle material to seal it up. Its now sealed but looks ugly so I will rework it during the annual. Its a fairly simple process to make a seal with baffle material and aluminum strips as needed and pop rivet things together.
    When you find one of these planes for sale you take off $5K for the hack job "injuneering" under the cowling. Nobody argues either. jus sayin...I stand with my previous response. Get a real mechanic to look at your issue.

  9. #9
    Stephen's Avatar
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    Default Re: Airbox seal

    I used rubber baffeling to seal around my carburetor inlet. It was not very difficult. Although, I did not see any difference in performance including cooling.
    "You can only tie the record for flying low."

  10. #10

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    Default Re: Airbox seal

    Quote Originally Posted by Subsonic View Post
    My advice: Go find a real certified mechanic and let him look at your issue and fix it. Don't put your leather seal, "suran wrap", "silicon sealant" or anything else on this airplane and ruin it. You are obviously in need of a real A & P mechanic to help your sort your issue. Just find the good A&P and ask him if you have an issue and how he would repair it to be as original as possible. The original design was good. Don't change it if you don't have an advanced degree in Aero/Thermodynamic/Mechanical/Aerospace/Design/Engineering and choose to do your Masters thesis in engine cooling or ram/air induction phenomenology. Leave it STOCK, or put it back STOCK and original. Just try to put it back like it was the day it left the factory and you will be so happy. You will be so happy. Trust me.
    How do you know he isn't one just looking for ideas instead of reinventing the wheel?
    "Good judgement comes from experience, and experience comes from bad judgement." - Fred Brooks

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