full gauge

[eamonn]

hi i have a 51 kaiser deluxe which the previous owner changed it to negative earth but still keeping it 6volt all works fine  except fuel gauge which shows full all the time. have new tank and fuel gauge sender has anyone else had  this problem ? thanks  Eamonn

[joefrazer]

The fuel gauge has a wire running from it to the sending unit at the fuel tank. That wire sits at the top of the tank which is just below the trunk floor. If the wire connection touches the trunk floor it will ground the wire and the gauge will read as full. It could also be that the wire has a bare spot somewhere between the sending unit and the gauge and the bare spot is touching metal and causing a ground and full gauge reading. Sounds like you have some detective work to do!

[eamonn]

hi thanks for answering , yes although its a new tank and sender its pointing to sender earthing out , its 6 volt negative earth, tried everything else so dropping tank at weekend