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cgod(at)cebridge.net Guest
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Posted: Wed Aug 22, 2007 5:32 am Post subject: Tech assistance, Low Fuel light |
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Hello All,
Im in need of some technical assistance.
My low fuel light is staying on with plenty of fuel in the header tank.
Any ideas of how to get it off?
Thanks,
Michael
[quote][b]
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kitfoxmike
Joined: 05 Dec 2006 Posts: 373
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Posted: Wed Aug 22, 2007 7:32 am Post subject: Re: Tech assistance, Low Fuel light |
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I had problems with mine and the steps I took to correct were to: take any filters out of the system from tank to header. Remove the hose coming from the tanks and blow air in reverse to clear the screen in the tank. Replace the gaskets on the caps with the ones for the mercedees. Mine work great now.
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Guy Buchanan

Joined: 16 Jul 2006 Posts: 1204 Location: Ramona, CA
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Posted: Wed Aug 22, 2007 7:58 am Post subject: Tech assistance, Low Fuel light |
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At 06:31 AM 8/22/2007, you wrote:
Quote: | My low fuel light is staying on with plenty of fuel in the header tank.
Any ideas of how to get it off? |
There are certainly several possibilities: 1) It's stuck. 2) It's broken. 3) The fuel level's low. Don't discount this last. My header tank will run the top 1/2" dry upon re-fill until the turbulence works all the air out. I find it's also easy to get sealant on it during installation. Finally, if it's a float sensor, and the sensor falls off, (breaks,) the light will illuminate. Unfortunately you'll have to pull it and take a look.\
Guy Buchanan
San Diego, CA
K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar. [quote][b]
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_________________ Guy Buchanan
Deceased K-IV 1200
A glider pilot too. |
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Float Flyr

Joined: 19 Jul 2006 Posts: 2704 Location: Campbellton, Newfoundland
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Posted: Wed Aug 22, 2007 8:01 am Post subject: Tech assistance, Low Fuel light |
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It all depends on how the switch is wired. A lot are wired hot (B+) to the light and then the switch in the header tank only provides a ground when the fuel goes low. If this is how your light is wired then you probably have a short circuit (to ground) somewhere between the light itself and the switch. Favoured places are in block connectors where a wire can come part way out and short off either the frame of neighbouring wires.
[img]cid:934565515(at)22082007-2AE0[/img]
Noel Loveys, RPP, AME intern
Campbellton, Newfoundland,
Canada
Kitfox Mod III-A, 582, B box, Ivo IFA
Aerocet 1100s
noelloveys(at)yahoo.ca (noelloveys(at)yahoo.ca)
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_________________ Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
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occom
Joined: 26 Aug 2006 Posts: 404
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Posted: Wed Aug 22, 2007 8:14 am Post subject: Tech assistance, Low Fuel light |
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Add fuel is the normal way!!
Dave Goddard- Mod IV 1050/582
do not archive
[quote] ---
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msm_9949(at)yahoo.com Guest
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Posted: Wed Aug 22, 2007 8:19 am Post subject: Tech assistance, Low Fuel light |
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What kind of low fuel sensor do you have MIchael? Mechanical (float-type) or optical?
Marco Menezes
Kitfox II 582-90 N99KX
MA Stanard <cgod(at)cebridge.net> wrote:
Quote: | Hello All,
Im in need of some technical assistance.
My low fuel light is staying on with plenty of fuel in the header tank.
Any ideas of how to get it off?
| [/quote]
[quote][b]
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clint_bazzill(at)hotmail. Guest
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Posted: Wed Aug 22, 2007 8:23 am Post subject: Tech assistance, Low Fuel light |
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What kind of low fuel warning do you have? Is it the float type or light
sensor type?
From: "Dave G." <occom(at)ns.sympatico.ca>
Reply-To: kitfox-list(at)matronics.com
To: <kitfox-list(at)matronics.com>
Subject: Re: Tech assistance, Low Fuel light
Date: Wed, 22 Aug 2007 13:14:16 -0300
Add fuel is the normal way!!
Dave Goddard- Mod IV 1050/582
do not archive
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tleiss(at)earthlink.net Guest
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Posted: Wed Aug 22, 2007 3:32 pm Post subject: Tech assistance, Low Fuel light |
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When I put mine in, I thought it was in correctly. In fact I had mounted it upside down. I still am shaking my head about that one....
Todd Leiss
Model IV Speedster - 912UL
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Lynn Matteson
Joined: 10 Jan 2006 Posts: 2778 Location: Grass Lake, Michigan
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Posted: Thu Aug 23, 2007 4:35 am Post subject: Tech assistance, Low Fuel light |
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Hi Michael-
Being as how yours is a Murle Williams-built plane, it probably has
the Williams Aviation low-fuel system in it. That consists of a float
switch inside of a small aluminum tank. You may have fuel in your
header tank but none in the low-fuel switch tank. Make sure that the
vent line from the switch tank is not plugged or kinked. The way this
system works is the fuel runs from the wing tanks to the header tank,
and is vented up through the low-fuel tank and back up to the right-
hand (usually) wing tank. When fuel fills the header tank, it also
fills the low-fuel tank, lifting the float, and thus shutting off the
low-fuel light.
Also, like Noel said, make sure that the wiring is not grounded at
any place besides the ground wire from switch to ground....if this is
the type system you have.
Lynn Matteson
Grass Lake, Michigan
Kitfox IV Speedster w/Jabiru 2200
flying w/369+ hrs
On Aug 22, 2007, at 9:31 AM, MA Stanard wrote:
Quote: | Hello All,
Im in need of some technical assistance.
My low fuel light is staying on with plenty of fuel in the header
tank.
Any ideas of how to get it off?
Thanks,
Michael
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_________________ Lynn
Kitfox IV-Jabiru 2200
N369LM |
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