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Fuel level indicator

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Rex Rodebush

Joined: 10 Jan 2006
Posts: 209
Location: Branson West area, Missouri

Posted: Fri Jun 08, 2018 12:15 pm Post subject: Fuel level indicator

I have an external tube to check the fuel level (see pix).  It's sometimes hard to see the fuel in the tube.  I thought of adding a small ball float in the tube for visibility.  I know J3's use a cork on the bottom of a wire for fuel level.  Don't know if it is coated or sealed with anything?  Any ideas from the group on what to use?  Obviously must be compatible with fuel.

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russk50(at)gmail.com
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Posted: Fri Jun 08, 2018 12:24 pm Post subject: Fuel level indicator

Rex Rodebush - if you're really lucky you can find a bead from  some sort of necklace that will be liquid-proof

end not dissolve in fuel — test it first!

 	  Quote: 	
		   On Jun 8, 2018, at 4:15 PM, Rex Rodebush <jrrodebush(at)gmail.com> wrote:

 

 

 

 I have an external tube to check the fuel level (see pix).  It's sometimes hard to see the fuel in the tube.  I thought of adding a small ball float in the tube for visibility.  I know J3's use a cork on the bottom of a wire for fuel level.  Don't know if it is coated or sealed with anything?  Any ideas from the group on what to use?  Obviously must be compatible with fuel.

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=480739#480739

 

 

 

 

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ceengland7(at)gmail.com
Guest

Posted: Fri Jun 08, 2018 1:07 pm Post subject: Fuel level indicator

On 6/8/2018 3:15 PM, Rex Rodebush wrote:

 	  Quote: 	
		   



 I have an external tube to check the fuel level (see pix).  It's sometimes hard to see the fuel in the tube.  I thought of adding a small ball float in the tube for visibility.  I know J3's use a cork on the bottom of a wire for fuel level.  Don't know if it is coated or sealed with anything?  Any ideas from the group on what to use?  Obviously must be compatible with fuel.

It's been done, so you wouldn't be the 1st. You do need to be sure it 
	


can't hang up in the tube, block the fuel's movement in the tube, or 

*escape the tube*. Depending on how the system is plumbed, you could 

block the fuel vent, give yourself a false fuel level reading, or even 

block fuel flow (if it escaped the tube).



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Richard Pike

Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee

Posted: Fri Jun 08, 2018 1:20 pm Post subject: Re: Fuel level indicator

This guy has an interesting idea - the pattern behind the tubing changes shape depending on whether there is fuel in front of it.

http://mybearhawkpatrol.com/finish/fuelsight.html



Or you could just go with this:

http://www.univair.com/piper/piper-pa-11/view-all/u10853-000-piper-fuel-gauge-float-ball/

_________________
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0

Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing.

ceengland7(at)gmail.com
Guest

Posted: Fri Jun 08, 2018 1:34 pm Post subject: Fuel level indicator

On 6/8/2018 4:20 PM, Richard Pike wrote:

 	  Quote: 	
		   



 This guy has an interesting idea - the pattern behind the tubing changes shape depending on whether there is fuel in front of it.

 http://mybearhawkpatrol.com/finish/fuelsight.html



 Or you could just go with this:

 http://www.univair.com/piper/piper-pa-11/view-all/u10853-000-piper-fuel-gauge-float-ball/



 --------

 Richard Pike

 Kolb MKIII N420P (420ldPoops)

 Kingsport, TN 3TN0

He did say that he used polyurethane  tubing. If you look up 
	


polyurethane's chemical resistance, benzine isn't one of them.

https://www.engineeringtoolbox.com/polyurethane-chemical-resistance-d_1878.html



Hard to find gasoline without benzine.....



Charlie



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Rex Rodebush

Joined: 10 Jan 2006
Posts: 209
Location: Branson West area, Missouri

Posted: Fri Jun 08, 2018 1:46 pm Post subject: Re: Fuel level indicator

Richard, The Piper fuel ball looks perfect! I'll order one. Thanks!

John Hauck

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

Posted: Fri Jun 08, 2018 2:19 pm Post subject: Fuel level indicator

Rex R/Kolbers:



Looks like you are using yellow Tygon type fuel line with a yellow

background.



My sight gauge is clear, for the most part, with Cub yellow fabric

background.  Been working good for me since day one.



john h

Titus, Alabama



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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

John Hauck

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

Posted: Fri Jun 08, 2018 2:21 pm Post subject: Fuel level indicator

My sight gauge uses clear Tygon.  Working fine since 1992.



john h

Titus, Alabama





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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

John Hauck

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

Posted: Fri Jun 08, 2018 2:23 pm Post subject: Fuel level indicator

Order two for a pair of balls.  



john h

Titus, Alabama



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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

Rex Rodebush

Joined: 10 Jan 2006
Posts: 209
Location: Branson West area, Missouri

Posted: Fri Jun 08, 2018 4:23 pm Post subject: Re: Fuel level indicator

John, 



Wasn't aware that the tygon came in clear.  The only one I could find was yellow from McMaster-Carr.  I'll see if I can find the clear version.  BTW, can't afford two balls, at my age one will be enough!

Rex Rodebush

Joined: 10 Jan 2006
Posts: 209
Location: Branson West area, Missouri

Posted: Fri Jun 08, 2018 4:43 pm Post subject: Re: Fuel level indicator

John, 



The only Tygon that I can find that is recommended for gas is the yellow version.  Do you change your gas gage line every few years or so?  Do you know what type of Tygon you use?

John Hauck

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

Posted: Fri Jun 08, 2018 5:58 pm Post subject: Fuel level indicator

The clear food grade should be fine.  It is PVC.



john



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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

John Hauck

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

Posted: Fri Jun 08, 2018 5:58 pm Post subject: Fuel level indicator

Amazon is a wonderful thing.  If you don't believe me, ask Larry Cottrell.



Do a Google search or go to this page to find all kinds and colors of Tygon:



https://www.amazon.com/Plastic-Tubing-Tygon/s?ie=UTF8&page=1&rh=n%3A16414401

%2Cp_4%3ATygon



john h

mkIII

Titus, Alabama





--

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

ceengland7(at)gmail.com
Guest

Posted: Fri Jun 08, 2018 6:07 pm Post subject: Fuel level indicator

Tygon (capitalized)



https://en.wikipedia.org/wiki/Tygon_tubing



On 6/8/2018 8:58 PM, John Hauck wrote:

[quote] 



 Amazon is a wonderful thing.  If you don't believe me, ask Larry Cottrell.



 Do a Google search or go to this page to find all kinds and colors of Tygon:



 https://www.amazon.com/Plastic-Tubing-Tygon/s?ie=UTF8&page=1&rh=n%3A16414401

 %2Cp_4%3ATygon



 john h

 mkIII

 Titus, Alabama





 --

byoungplumbing(at)gmail.c
Guest

Posted: Sat Jun 09, 2018 1:05 pm Post subject: Fuel level indicator

It's been so long I don't remember what I made the float out of.  I don't think it was cork,  maybe I carved it out of wood or found a plastic ball used  a permanent marker to make it more visible.    I do remember building a restriction that I fit inside the line that keep the float from sloshing out of the sight tube.  Did this by cutting 2 sections of fuel tube 3/16 or so long pinched it and using a wire slid  them down the sight  tube to match the top and bottom of the fuel tank with the ball in-between.   The fuel could get past the restriction to float the ball, and at the same time keep the ball out of the pumps and carbs where it could cause trouble.



Boyd Young

Mkiii utah

On Fri, Jun 8, 2018, 2:17 PM Rex Rodebush <jrrodebush(at)gmail.com (jrrodebush(at)gmail.com)> wrote:



 	  Quote: 	
		  --> Kolb-List message posted by: "Rex Rodebush" <jrrodebush(at)gmail.com (jrrodebush(at)gmail.com)>

 

 I have an external tube to check the fuel level (see pix).  It's sometimes hard to see the fuel in the tube.  I thought of adding a small ball float in the tube for visibility.  I know J3's use a cork on the bottom of a wire for fuel level.  Don't know if it is coated or sealed with anything?  Any ideas from the group on what to use?  Obviously must be compatible with fuel.

 

 

 

 

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zeprep251(at)aol.com
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Posted: Sat Jun 09, 2018 1:45 pm Post subject: Fuel level indicator

Russ, used to use shellac but modern fuel additives in car gas might affect it like they did the old sloshing compound. 



Sent from my iPhone



 	  Quote: 	
		   On Jun 8, 2018, at 4:24 PM, Russ Kinne <russk50(at)gmail.com> wrote:

 

 

 

 Rex Rodebush - if you're really lucky you can find a bead from  some sort of necklace that will be liquid-proof

 end not dissolve in fuel — test it first!

 

 

> On Jun 8, 2018, at 4:15 PM, Rex Rodebush <jrrodebush(at)gmail.com> wrote:

> 

> 

> 

> I have an external tube to check the fuel level (see pix).  It's sometimes hard to see the fuel in the tube.  I thought of adding a small ball float in the tube for visibility.  I know J3's use a cork on the bottom of a wire for fuel level.  Don't know if it is coated or sealed with anything?  Any ideas from the group on what to use?  Obviously must be compatible with fuel.

> 

> 

> 

> 

> Read this topic online here:

> 

> http://forums.matronics.com/viewtopic.php?p=480739#480739

> 

> 

> 

> 

> Attachments: 

> 

> http://forums.matronics.com//files/img_20180608_133656384_489.jpg

> 

> 

> 

> 

> 

>

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