[TR] TR3 fuel sending unit impedance

[tr3bob at cox.net]

Bill,

To add to Randall's comments, I purchased a "new" sending unit for my '60 TR3 from one of the big three. When I sent my gauge to Nisonger for a rebuild, they suggested that I also include the sending unit....they wanted to match the impedence.

I got a call from Nisonger later that week saying that they were returning the sending unit me and suggested that I ship it back to the manufacturer. Seems the "new" sending unit was wound with a different size wire and would be impossible to calibrate to my original gauge.

I did return the "new" sending unit and Nisonger ended up rebuilding my original sending unit that I thought was junk. Live and learn.

FWIW

Bob Stahlbush, pres., British Motorcars of NE (2001-2006)

60 TR3A
66 MGB
70 BSA T-Bolt
70 BSA Lightning
76 Midget
83 XJ-6   


This is 
---- "William C. Quincy" <wquincy at cox.net> wrote: 
> I have a question regarding a '60 TR3 and the fuel sending unit, when  
> I connect the fuel gauge it is pegged to full, upon disconnecting the  
> wire from the sending unit it drops to E. When I measure the  
> impedance of the sending unit, with the tank empty it shows 82 Ohms.  
> I would like to know what the sending unit should measure when empty  
> and full, so I have some idea where to go with this problem,  
> additionally any other information regarding this problem would be  
> appriciated.
> Thanks
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