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12-14-2016, 05:30 PM
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Join Date: Sep 2015
Location: Park Ridge, NJ
Posts: 639
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Fuel Tank Sender Pics
Does anyone have any photos of the fuel tank senders installed? I'm having a heck of a time figure out how to get these set up properly. The vent line is in the way, the stiffeners are in the way - nothing seems to work properly.
Here are some photos of what I have. Seems like I'm getting between 40 and 240 ohms - full to empty.
Thanks!
Charlie

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12-14-2016, 05:43 PM
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Join Date: Jan 2014
Location: Cedar Rapids, IA / USA
Posts: 159
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Hi Charlie, feel free to check out my blog on this, some pics you may find helpful are here:
Both tanks here, but we redid the L tank in a later post:
http://mikeandsarahrv10.blogspot.com...-tanks_29.html
The later post with the L tank again:
http://mikeandsarahrv10.blogspot.com...-bottle-6.html
I remember that it took a bit of finagling but we finally were able to get both R and L senders to move freely around obstacles and go through their full swing on the potentiometer. Feel free to reach out if you have any further questions, and best of luck! -Mike
EDIT: Is there a reason your vent line isn't routed through the hole circled here?

__________________
Mike Jimenez & Sarah Hammonds
EAA Chapter 33 Prez & Soc Chair
Marion, IA USA
RV-10 In progress! (N165MJ reserved)
-Emp & Wings complete
-Panel wired up, working on Fuse & Finish
-Blog horribly outdated (sorry)
-Too many distractions, we will finish the plane someday!!!
http://mikeandsarahrv10.blogspot.com/
http://www.eaa33.org/
Last edited by mikeyj350 : 12-14-2016 at 05:49 PM.
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12-14-2016, 05:52 PM
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Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,797
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I'm sure this is just me not seeing the photo well, but is the float moving fore-aft instead of up-down?
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12-14-2016, 05:57 PM
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Join Date: Sep 2015
Location: Park Ridge, NJ
Posts: 639
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Thanks for the photos mike... looks like my first mistake is that i ran the vent line in the aft-most hole, which does not look like what you did. so that will eliminate some of the bends in the line, which may make it easier for me. I also see that you put a few extra bends in the wire holding the float, which probably helped put the float in a better position to clear obstacles.
Guess I have a little more playing around to do - the tanks have definitely been the most time consuming/frustrating part so far...
Thanks again,
Charlie
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12-14-2016, 05:59 PM
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Join Date: Sep 2015
Location: Park Ridge, NJ
Posts: 639
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Quote:
Originally Posted by BobTurner
I'm sure this is just me not seeing the photo well, but is the float moving fore-aft instead of up-down?
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Its definitely moving up and down. The photo is probably just not oriented properly.
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12-14-2016, 07:42 PM
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Join Date: Jan 2014
Location: Cedar Rapids, IA / USA
Posts: 159
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I just realized in the plans (if you look at 18-6 Fig 2) your vent lines look correct, and mine do not. I'm guessing it's not a huge problem either way, as long as it is routed correctly by the fuel cap, but just wanted to point this out.
__________________
Mike Jimenez & Sarah Hammonds
EAA Chapter 33 Prez & Soc Chair
Marion, IA USA
RV-10 In progress! (N165MJ reserved)
-Emp & Wings complete
-Panel wired up, working on Fuse & Finish
-Blog horribly outdated (sorry)
-Too many distractions, we will finish the plane someday!!!
http://mikeandsarahrv10.blogspot.com/
http://www.eaa33.org/
Last edited by mikeyj350 : 12-15-2016 at 05:48 AM.
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12-14-2016, 08:25 PM
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Join Date: Jan 2015
Location: Blairsville, GA
Posts: 202
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I made a video about this sorta.. or atleast I talked to it in one of my videos.. heh
https://youtu.be/D6D3GTdlBac?t=71
My wire is all bent to **** but it works well and the sender stops at zero and 100% wihtout hitting the upper or lower skin.
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12-15-2016, 07:49 AM
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Join Date: Sep 2015
Location: Park Ridge, NJ
Posts: 639
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Quote:
Originally Posted by mikeyj350
I just realized in the plans (if you look at 18-6 Fig 2) your vent lines look correct, and mine do not. I'm guessing it's not a huge problem either way, as long as it is routed correctly by the fuel cap, but just wanted to point this out.
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I've looked at it a few times now. Originally, I thought my method was correct, but then after I looked at your photos, I went back to the diagram and I can argue that yours looks correct. I ripped out the vent and moved it down to the same holes you used and that solved 99% of my problems. I don't know what the other holes are for... guess I would have to look ahead to see if any wires are routed there, but I kinda doubt it. Doesn't seem like either hole would make much of a difference. Your method definitely keeps the tubing in a much straighter line.
Thanks again
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