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Old 03-14-2021, 09:52 AM
CaptJack CaptJack is offline
Join Date: Feb 2020
Location: OWEGO, NY
Posts: 10
Default Sender full deflection gauge reads 11 gallons

Had a minor fuel access plate leak on right fuel tank. Pulled plate and sender and troubleshooting sender problem. Fuel Gauge doesn’t go above 11gallons when at full deflection of float. Tested sender out of tank. Will probably swap gauges to narrow down if it’s gauge or sender. Anyone else have this problem? Also-does Van’s still sell fuel gauges? Thanks!��
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Old 03-14-2021, 09:54 AM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is offline
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 2,941

I suspect after reassembly the float arm is now hitting something in the tank preventing full travel.

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Old 03-14-2021, 10:01 AM
DanBaier's Avatar
DanBaier DanBaier is offline
Join Date: Mar 2009
Location: Rochester NY
Posts: 696

They do go bad. I've had to replace one in 13 years.

I think the replacement is at
RV7A (N7101) - Flying 10/2008

Last edited by DanBaier : 03-14-2021 at 10:05 AM.
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Old 03-14-2021, 06:54 PM
calpilot calpilot is offline
Join Date: Aug 2018
Location: Independence
Posts: 107

Perhaps need to put a lazy "Z" in the lateral arm to pull the float back from structure. Since most no longer use the thick Neoprene gasket, the pro sealed in floats are moved inboard a bit, and sometimes contact structure. Also, make sure the float is on the bottom of the wing skin when fully "down". That way it can read the fuel level at the top of the arm, however, due to dihedral, one cannot measure fuel level for the top 3-5 gallons.

DAR Gary
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