Try adding a ground wire from one of the fuel sender screws to a chassis ground. Sometimes the ground path fails. It is possible there is a problem with the sender or gauge, unrelated to the alternator.
With the engine not running, only one terminal of the oil pressure switch should have power since the switch should be open without oil pressure. With the engine running both terminals should have power, if the switch is closing when it receives oil pressure.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
... [Read Article]
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