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fuel reading
Posted: Fri Nov 25, 2011 8:07 pm
by Tes 1
Hi.All This is a real poser question??.A 1956 morris minor fuel gauge is reading half full when the tank level fuel sender unit is set to empty whilst i am holding it.i have tested the fuel gauge by earthing the wire to the body and the petrol gauge goes to full and when i remove the earth it reads empty which is what it should do. the tank sender is new so why am i getting a reading at half full when it should read empty?.any idears.Cheers.
Re: fuel reading
Posted: Fri Nov 25, 2011 8:35 pm
by mike.perry
Is the tank sender compatible with a 5 gallon tank or 6.5 gallon tank?
I don't know if it makes any difference but it might.
Re: fuel reading
Posted: Fri Nov 25, 2011 10:19 pm
by Neil MG
The new repro sender units are not good. Try to get a used original, easily recognised by the aluminium float.
Re: fuel reading
Posted: Fri Nov 25, 2011 10:55 pm
by Tes 1
Many thanks for the reply's.Interesting!!!.I will let you know.Cheers.
Re: fuel reading
Posted: Sat Nov 26, 2011 9:53 pm
by fussyoldfart
Some gauges work off straight battery voltage. Later (date? year?) gauges require "stabilized" voltage. Is the sender the same for both?
Re: fuel reading
Posted: Sun Nov 27, 2011 12:16 am
by mike.perry
A '56 would be a 12 volt gauge. 1098 black speedos would have a 10 volt output stabiliser