Quoting Removed, click Modern View to seeIf I were you, I would not open another can of worms by trying to switch ground polarity. I and others can do it without incident, but many will ruin regulators in trying. "If it aint broke, don't fix it until you achieve broken." I doubt that your fuel gauge is polarity sensitive. I would get the gauge & sender out on a wood bench and do do some testing.[/quote]
I have tested on a bench. The old gauge had 2 terminals. Battery and Tank. I assume it grounded thru the mount. The aftermarket gauges have 3 terminals Battery, Tank, Ground.
The sending unit ohms out thru the wire to the negative on the battery 74 ohms the same as directly to the sending terminal and sending mounting plate. I believe the sending unit is good.[/quote]On all gauges heads that I have had experience with (tractors or vehicles), the instrument will read full or empty when 'tank' terminal is either left open or connected to battery (un-grounded terminal).
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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