REFLECTOR: Fuel resistant adhesive, homemade sniffle valve

[Sid Knox]

Hi Dave,
If it is leaking "just a little bit", I would ignore it.  I tiny air leak at 
that point is equivalent to blowing thru a straw compared to a hurricane. 
To put it in perspective, think about the amount of air being sucked in by 
the 360 cu in (or more) cylinders about 20 times each second.  (360 x 20 = 
7200 cu in  compared to a "just a little bit".   My opinion only.

Sid Knox
Oklahoma

Velocity  173 RG  N199RS
Starduster  N666SK
KR2         N24TC
W7QJQ

----- Original Message ----- 
From: "Dave Philipsen" <velocity at davebiz.com>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Friday, December 22, 2006 11:40 AM
Subject: REFLECTOR: Fuel resistant adhesive


>I am fashioning a homemade sniffle valve and would like some advice.
> The valve is pretty simple consisting of a small nylon piece that fits
> inside a couple of brass fittings.  I've got it sealing pretty well when
> there's suction from the engine.  The nylon part seats against the brass
> but it still leaks just a little bit.  What I'd like to do is attach a
> small piece of silicone rubber to the nylon.  Hopefully, the softer
> rubber will seal better against the brass.  Does anyone know of an
> adhesive that should remain unaffected by 100LL?
>