Today's Message Index:
----------------------
1. 12:42 AM - Patching the Firewall (George Nielsen)
2. 06:05 AM - Re: Patching the Firewall (Neal George)
3. 07:10 AM - Re: Patching the Firewall (Charlie England)
Message 1
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| Subject: | Patching the Firewall |
In the firewall of my Avid Flyer there is a perforation. Does anyone
know how I can patch it up? Thanks.
George Nielsen
The Hague, the Netherlands
Message 2
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| Subject: | Re: Patching the Firewall |
George -
How big is the hole?
If it is a small hole, fill it with a bolt, washers and nut. Larger holes may
be patched with a bolt and two (2) AN970 large area washers, one on either side
of the firewall. If it is too big to cover with washers, consider a patch of
stainless or galvanized steel, matched to the thickness of your firewall material,
secured with screws & nuts and a fire-rated caulk sealant.
Neal George, A&P/IA
Florida
In the firewall of my Avid Flyer there is a perforation. Does anyone
know how I can patch it up? Thanks.
George Nielsen
The Hague, the Netherlands
Message 3
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| Subject: | Re: Patching the Firewall |
Neal's method is quickest & simplest. I had a couple of -4 holes intended
to mount a fuel pump, & wanted something a bit lighter, so I used stainless
sheet I cut from a really cheap cooking pot bought at Walmart (discount
retailer here in the US). The gray stuff is intumescent caulk, but
'proseal' or regular silicone would work fine & proseal is what Van's
Aircraft recommends for sealing the firewall. Yes, the aluminum rivets will
melt, but the entire firewall is riveted with aluminum rivets.
Charlie
On Mon, Feb 28, 2022 at 8:08 AM Neal George <neal.george@gmail.com> wrote:
>
> George -
> How big is the hole?
>
> If it is a small hole, fill it with a bolt, washers and nut. Larger holes
> may be patched with a bolt and two (2) AN970 large area washers, one on
> either side of the firewall. If it is too big to cover with washers,
> consider a patch of stainless or galvanized steel, matched to the thickness
> of your firewall material, secured with screws & nuts and a fire-rated
> caulk sealant.
>
> Neal George, A&P/IA
> Florida
>
> genie@swissmail.org>
>
> In the firewall of my Avid Flyer there is a perforation. Does anyone
> know how I can patch it up? Thanks.
>
> George Nielsen
> The Hague, the Netherlands
>
>
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