Thanks Brian and Lulu. As the fuel gague showed 1/2 full I wonder if the unit has been put back thre wrong way around - it had some work done before I purchased it last Sept. Is there any advice on the correct fitting?
Mark
But you said the multi meter showed no change in resistance when you moved the float??
Take the top off and you will see a reostat winding. If it has not broken then you can repair the connections. But if the gauge showed half full ( even on an empty tank) all the time it implies the sender float arm was jammed. I had this with my B12 (same sender technology) so I freed it off, replaced it and it jammed again after a month.