Re: [diesel_mercedes] Fuel Sender

 

On 9/18/2017 8:31 PM, MARK BRAUER beeser@comcast.net [diesel_mercedes] wrote:
 

I've yet to find any sender worth a damn on these cars.  Even tried one from a gasser W116 (280SE).  I've made sure my Low Fuel light circuitry and light are working, which has been very reliable, and go by that.  Oh, and always carry 2.5 gals of fuel in the trunk in an old Amzoil ATF bottle....


I took my old one apart again tonight. I discovered that the contacts on the float are held against the wire by a thin metal finger. They are very hard to see, particularly when everything is black from fungus and of course, my fast aging eyes. If they are not routed correctly, that would obviously cause wonky readings.
The wires were not strung through the apertures between the contacts and the pressure fingers. I moved the float about halfway and carefully pulled the wires and reran them between. I'll bet they get this way after being shipped and repeatedly dropped. The center rod prevents the float from moving any direction other that up and down and little harm comes from it slapping up and down while in shipment, but the wires are free to move and just the right hit would surely bounce them out of position.
In short, there are two contacts per wire and the string slips between them.
--   Mark L. Bardenwerper, Sr.  Technology...responsibly, thoughtfully

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Posted by: Mark Bardenwerper <citrogsa@charter.net>
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