Today's Message Index:
----------------------
1. 10:58 AM - Tank Level Tubes (Steade)
2. 01:32 PM - Re: Tank Level Tubes (Malcolm Brubaker)
3. 05:07 PM - Re: Tank Level Tubes (Lowell Fitt)
4. 08:43 PM - Re: Tank Level Tubes (Ron Liebmann)
5. 09:30 PM - Re: Tank Level Tubes (Paul A. Franz, P.E.)
Message 1
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| Subject: | Tank Level Tubes |
Hi All
Just a quick warning regarding the tank level tubes used on some kits.
My Kitfox 7 supplied in 2003 used a tank sight tube design which
incorporated hard butyrate tube that you heat formed to the required 'U'
shape. This was then attached to the tank with 'Fast and Tite'
connectors from Parker. Last week I had a petrol leak from one of the
top fittings, on inspection I found that this had occurred because over
the years the butyrate tube had developed a waisting in the area of the
'O' ring fitting caused by the constant pressure of the 'O' ring.
Apparently the factory no longer supply this type of design and have
reverted to the brass barbed fittings used on earlier designs.
In the winter I shall change the fittings to use the latest design.
Regards
David Steade
Message 2
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| Subject: | Re: Tank Level Tubes |
I just listed my kit fox on barnstormers- the slide show will be up soon
=0Aits a great little 582 bluehead mod 2 w/ lots of extras only 12 years ol
d this fall=0A=0AMalcolm & Jeanne Brubaker =0AMichigan Sport Pilot Repair
=0Ahttp://michigansportpilotrepair.com =0ALSRM-A, PPC, WS=0AGreat Sails - S
ailmaker =0Afor Ultralight & Light Sport=0A(989)513-3022 =0A- =0A=0A=0A
=0A =0A=0A________________________________=0A From: Steade <steade@btintern
et.com>=0ATo: kitfox-list@matronics.com =0ASent: Monday, April 23, 2012 1:5
7 PM=0ASubject: Kitfox-List: Tank Level Tubes=0A =0A=0A =0AHi All =0A-
=0AJust a quick warning regarding the tank level tubes used =0Aon some kit
s. =0A- =0AMy Kitfox 7 supplied in 2003 used a tank sight tube design =0A
which incorporated hard butyrate tube that you heat formed to the required
'U' =0Ashape. This was then attached to the tank with 'Fast and Tite' conne
ctors from =0AParker. Last week I had a--petrol leak from =0Aone of the
top fittings, on inspection I found that this had occurred because =0Aover
the years the butyrate tube had developed a waisting in the area of the 'O
' =0Aring fitting caused by the constant pressure of the 'O' ring. =0A-
=0AApparently the factory no longer supply this type of =0Adesign and have
reverted to the brass barbed fittings used on earlier =0Adesigns.=0A- =0A
In the winter I shall change the fittings to use the =0Alatest design. =0A
=====
Message 3
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| Subject: | Re: Tank Level Tubes |
David,
This was fairly common and I suspect the reason the factory went back to
the old way. One way to reduce the waisting tendency is to insert an
appropriately dimensioned drilled rod into the tube. The talk then was
that a small hole drilled in the rod would reduce the fuel movement in
the tubes during turbulence. My current project has the flexible tubing
with a stiff wire inside that pretty much gives the same shape as the
butyrate tube - I didn't like the giant fittings necessary for the stiff
tubing.
Lowell
From: Steade
Sent: Monday, April 23, 2012 10:57 AM
Subject: Kitfox-List: Tank Level Tubes
Hi All
Just a quick warning regarding the tank level tubes used on some kits.
My Kitfox 7 supplied in 2003 used a tank sight tube design which
incorporated hard butyrate tube that you heat formed to the required 'U'
shape. This was then attached to the tank with 'Fast and Tite'
connectors from Parker. Last week I had a petrol leak from one of the
top fittings, on inspection I found that this had occurred because over
the years the butyrate tube had developed a waisting in the area of the
'O' ring fitting caused by the constant pressure of the 'O' ring.
Apparently the factory no longer supply this type of design and have
reverted to the brass barbed fittings used on earlier designs.
In the winter I shall change the fittings to use the latest design.
Regards
David Steade
Message 4
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| Subject: | Re: Tank Level Tubes |
Can one of our Kitfox listers tell me where I can get new tires for an
early model Kitfox? It had NanChing(sp)
that fit inside the wheel pants but now I can't find them sold anywhere.
Is there a different brand that is used now?
I'd sure appreciate any help with this matter.
Thanks Much, Ron (asking for Robert Beck, model 4)
Message 5
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| Subject: | Re: Tank Level Tubes |
On Mon, April 23, 2012 8:41 pm, Ron Liebmann wrote:
>
> Can one of our Kitfox listers tell me where I can get new tires for an early
model
> Kitfox? It had NanChing(sp)
> that fit inside the wheel pants but now I can't find them sold anywhere. Is
there a
> different brand that is used now?
> I'd sure appreciate any help with this matter.
>
> Thanks Much, Ron (asking for Robert Beck, model 4)
I'm using Carlisle Turf-Glide tires. Here's a lot of places to buy them.
<https://www.google.com/search?q=carlisle+turf+glide+tires&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a>
Measure your existing ones and the space available in your wheel pants carefully
and
talk to a salesman to make sure what you buy will fit. When I mounted mine I lubed
the
wheels and it still took close to 100 psi to get them to pop onto the wheels. Scared
me when then made such a loud pop. Both took about the same pressure. I like the
wavy
rib pattern and the fact that they are so tight on the wheels that I can run them
with
a pretty low pressure without worrying about them spinning on the wheel with hard
braking.
--
Paul A. Franz, P.E.
PAF Consulting Engineers
Office 425.440.9505
Cell 425.241.1618
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