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Author Topic: Fuel gauge Q  (Read 6387 times)

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Offline BeerBeddy

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Re: Fuel gauge Q
« Reply #10 on: February 06, 2014, 03:31:29 PM »
Pretty simple, forget ohmmeters for the  moment. If single wire to the sender unit, disconnect it. Apparently Bedfords will then go to FULL. Ground this wire to a good earth source with the ignition on. The gauge should go to EMPTY. If all this happens as described, the wiring and fuel gauge are fine. Move on. It has to be in the sender unit. Get a variable resistor or a resistor of around 100ohms and put the wire to it and the resistor to ground. The gauge should move somewhere other than FULL or EMPTY. All this does is doubly confirm the gauge and wiring are fine.

Now if you know what the resistance readings for the sender are, now you can get the ohmmeter out and put it to the wire terminal on the sender and the other side to the body of the sender. Set the meter in the 200ohm range and move the float around and see if you get changes in the reading.

IF that checks out OK, put it all back together and run an earth wire from the tank to the body.

If it still doesn't work, buy a Transit!
If at first you don't succeed, then sky diving is not for you.

Offline Postie Bob

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Re: Fuel gauge Q
« Reply #11 on: February 07, 2014, 02:42:44 PM »
Thanks for all the help people.
Seems like I had a bad earth or something.  I connected the sender up as suggested and the gauge moved around as the float was moved.
Put it all back together and now it still shows just under 1/4 with tank empty and just over 1/4 with 10 litres of fuel added .
I`ll bung in some more fuel later and see what movement I get ( It`s starting to give me a movement  ;D ) .  Recon I might be up for a new sender though.   I want to be able to cruise around without lumping a jerrycan with me .
Cheers, Bob.

 

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