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Fuel Tank Gasket Material ?

 
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planecrazzzy
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PostPosted: Sat Apr 29, 2006 8:15 am    Post subject: Fuel Tank Gasket Material ? Reply with quote

Hey Guys,

I'm going to make a couple fittings for the bottom of my fuel tanks...
( see "rough" sketch below )

The two pieces of Stainless steel will be concaved to make a low point
in the tanks... this way I can put a gasolator and drain and fuel pick-up at the lowest point of the tanks ( I might add a "site gauge" too )

My question is...

What are some good Gasket materials....Both Hard & soft ?

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Gotta Fly...
Mike in MN
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Rough sketch of lower fuel pick-up 002.jpg
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Rough sketch of lower fuel pick-up 002.jpg


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planecrazzzy
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PostPosted: Sun Apr 30, 2006 5:30 am    Post subject: Re: Fuel Tank Gasket Material ? Reply with quote

I've revised my sketch...I'm thinking of making the "inside piece" slightly

smaller to force the curve a little better....

I'm thinking of going with "thicker" material and just tapping the holes

instead of welding nuts on (TIG)
Gasket seal ????? Hard , soft , silicone stuff ???

Gotta Fly...
Mike in MN


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planecrazzzy
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PostPosted: Sun May 14, 2006 11:29 am    Post subject: Re: Fuel Tank Gasket Material ? Reply with quote

Hey Guys,
Here's a few pictures of what I've got so far....

I didn't like the way the concave seal was turning out...

So I went for flat Washers.... I'm gonna "groove" them later to get the

Fuel pick-up as low as possible....

I also went with 8 screws instead of 6....

BUT.... I "STILL" am looking for some kind of gasket material that can be

used with gasoline.....The Silicones that I've read say "NO Gasoline"

I'm wondering about cork....?

Well,
Here's a few pictures...

Gotta Fly...
Mike in MN


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lower fuel pick-up 002.jpg
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I'm using all Stainless Steel Material
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lower fuel pick-up 002.jpg



lower fuel pick-up 005.jpg
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lower fuel pick-up 005.jpg



lower fuel pick-up 004.jpg
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Quick attempt....Checking possibilities.....( Didn't like it )
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lower fuel pick-up 004.jpg


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David.Lehman



Joined: 10 Jan 2006
Posts: 265
Location: "Lovely" Fresno CA

PostPosted: Sun May 14, 2006 11:47 am    Post subject: Fuel Tank Gasket Material ? Reply with quote

Cork's good...

DVD
On 5/14/06, planecrazzzy <planecrazzzy(at)yahoo.com> wrote:
Quote:



Hey Guys,
Here's a few pictures of what I've got so far....

I didn't like the way the concave seal was turning out...

So I went for flat Washers.... I'm gonna "groove" them later to get the

Fuel pick-up as low as possible....

I also went with 8 screws instead of 6....

BUT.... I "STILL" am looking for some kind of gasket material that can be

used with gasoline.....The Silicones that I've read say "NO Gasoline"

I'm wondering about cork....?

Well,
Here's a few pictures...

Gotta Fly...
Mike in MN

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=F4=BF=F4 "Failure lies not in falling down. Failure lies in not getting u=
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John Hauck



Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

PostPosted: Sun May 14, 2006 2:12 pm    Post subject: Fuel Tank Gasket Material ? Reply with quote

| So I went for flat Washers.... I'm gonna "groove" them later to get
the
|
| Fuel pick-up as low as possible....
| |
| Gotta Fly...
| Mike in MN
Mike/Gang:

Everybody wants to do it their way, and I understand that. However,
there is another solution to installing outlets in the bottom of
plastic tanks, which I am assuming you are doing.

It is a very simple metal elbow and a neoprene washer that pushes into
a hole drilled into the bottom of the plastic tank. They work very
well, last for years. I have some in a 15 gal plastic gas tank I used
for hauling fuel for my FS 20 years ago. It is still usable.
Compared to the hardware you have come up with it weighs next to
nothing for a set of two for two tanks.

I am sure Travis, at Kolb, has them in stock. Tell him hauck sent
you. Will not help, but tell him anyhow.

Take care,

john h
mkIII


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planecrazzzy
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PostPosted: Sun May 14, 2006 3:00 pm    Post subject: Re: Fuel Tank Gasket Material ? Reply with quote

John Hauck wrote:
|

It is a very simple metal elbow and a neoprene washer that pushes into
a hole drilled into the bottom of the plastic tank. They work very
well, last for years.
john h
mkIII

Hi John,
Those fittings were talked about before....what we didn't like about them is they don't drain "all" the fuel / water / debris ...
They stick up from the bottom of the tank aprox 3/8"

I'd rather just put a gasotator on to filter and Drain/Check the fuel/water....without anything accumulating in the tanks....

Gotta Fly...
Mike


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Steven Green



Joined: 05 Feb 2006
Posts: 118

PostPosted: Sun May 14, 2006 4:33 pm    Post subject: Fuel Tank Gasket Material ? Reply with quote

Try some of the following links for materials compatability.

Steven
http://www.quickcutgasket.com/chemicalresistance.html

http://www.rfcarlson.com/RFC_%20Chemical%20Compatibility%20Chart.htm
http://www.oringsusa.com/html/fluid_compatability_of_o-rings.html


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dcreech3(at)hotmail.com
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PostPosted: Sun May 14, 2006 6:26 pm    Post subject: Fuel Tank Gasket Material ? Reply with quote

Another point is that when they do begin to leak, it creates a messy,
unpleasant and potentially dangerous situation. After I learned this from
experience, I plumbed my new tanks from the top, they way they set up the
new ones. Why make holes in the bottom of your tanks when you don't have
to?

Lee in Ky
Firestar II
Quote:
From: "planecrazzzy" <planecrazzzy(at)yahoo.com>
Reply-To: kolb-list(at)matronics.com
To: kolb-list(at)matronics.com
Subject: Re: Fuel Tank Gasket Material ?
Date: Sun, 14 May 2006 16:00:11 -0700


John Hauck wrote:
> |
>
> It is a very simple metal elbow and a neoprene washer that pushes into
> a hole drilled into the bottom of the plastic tank. They work very
> well, last for years.
> john h
> mkIII

Hi John,
Those fittings were talked about before....what we didn't
like about them is they don't drain "all" the fuel / water / debris ...
They stick up from the bottom of the tank aprox 3/8"

I'd rather just put a gasotator on to filter and Drain/Check the
fuel/water....without anything accumulating in the tanks....

Gotta Fly...
Mike

--------
.
.
.
.
.Do not archive


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=34596#34596

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ElleryWeld(at)aol.com
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PostPosted: Sun May 14, 2006 6:47 pm    Post subject: Fuel Tank Gasket Material ? Reply with quote

I have been using the same fittings that John Hauck is talking about for 15
years in the bottom of my tank and I never had one start leaking yet and I
have a tank that has a bubble in the bottom where I put it so I get a good taste
of water on my preflight once in a while ( I hate it when it doesnt warn me
when the gas starts to get on my toung ) but I got all the water out snip snip

Ellery in Maine a long way from anywhere

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