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Old 05-09-2017, 01:02 PM   #12
JSeery
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Join Date: Nov 2012
Location: Wichita KS
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Default Re: Need 6V gas tank sending unit rebuilt

The points in the sender. Current is regulated in the sender by opening and closing a set of points (contacts). The rate at which they are opening and closing determines the current in the system between the sender and the gauge. The float position changes the tension on the point and thus the rate they vibrate. If the points are open the resistance will be zero and if closed, a very low value based on the coil (windings around the bimetal strips). There should be no change in the resistance once the points close regardless of the float position. The attached operation description is related to Mercury/Lincoln units, but they all functional work the same.
Attached Images
File Type: jpg Fuel Gauge Diagram.jpg (36.3 KB, 84 views)
File Type: jpg Fuel Tank Diagram.jpg (37.9 KB, 72 views)
File Type: jpg Gauge Test King Seeley 3.jpg (74.2 KB, 74 views)
File Type: jpg Gauge Test King Seeley 4.jpg (55.8 KB, 59 views)

Last edited by JSeery; 05-09-2017 at 02:53 PM.
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