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Member Since: 10 Oct 2011
Location: Norwich
Posts: 461
United Kingdom 1998 Defender 110 300 Tdi HT Alpine White
300tdi 110 Fuel Tank Depth
Howdy folks,

I'm thinking I would like to swap out the highly dysfunctional fuel sender on the landy and replace it with a VDO Tube sender and matching gauge.

Only issue is, VDO sell about 15 billion different sizes of tubes, so I need to figure out the fuel tank depth. Not really planning on removing the tank at the moment, so can't easily measure it, so, does anyone have a tank, or know the depth from the hole to the bottom of the tank?

Thanks 1998 110 300Tdi White Hard Top
Post #956911 30th Jun 2022 3:39pm
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MercianRover



Member Since: 07 Apr 2022
Location: Culworth
Posts: 141
United Kingdom 1998 Defender 110 300 Tdi CSW Java Black
How is it dysfunctional?
I'll try and measure the depth of my tank later on.
Post #956918 30th Jun 2022 4:55pm
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Interlet



Member Since: 10 Oct 2011
Location: Norwich
Posts: 461
United Kingdom 1998 Defender 110 300 Tdi HT Alpine White
It stops reading lower than 1/4 tank and I just think with the rest of the vehicle all in bits, it is a good time to change it up for something more modern.

That would be great though, thanks! 1998 110 300Tdi White Hard Top
Post #956919 30th Jun 2022 5:20pm
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MercianRover



Member Since: 07 Apr 2022
Location: Culworth
Posts: 141
United Kingdom 1998 Defender 110 300 Tdi CSW Java Black
Take the sender out and with the arm in it's lowest position bend the arm so the float is lower.

What is happening is that the potentiometer is reaching the lowest point before the float has followed the liquid all the way to the bottom.

My black 110" has this problem - 1/4 tank is around 10 litres wheras on my green one it's about 20 litres.

No need to fiddle about buying expensive new level sensors and compatible gauges - the standard one works but needs adjusting. Put the £ saved into the tank in the form of fuel!

Could even go as far as to drain the tank, put 20 litres in and use that as a guide to calibrate the sender / gauge on level ground to 1/4 tank.
Post #956961 1st Jul 2022 7:16am
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