[TR] Fuel gauge troubles

[Wbeech@flash.net]

Assume your new sender and old gauge are good, then you are down to connections.  The polarity change should not have mattered but grounding  for the sending unit and the gauge are vital.  I run independent ground wires to both of these.    

If you believe your old sender to be good, except for the leak, you might connect it up outside of the tank and test it. 

Farther on, Barney has some good info and test procedures on his MGA GURU web site: http://mgaguru.com/mgtech/electric/electr_1.htm

All the best,
Bill

Sent from my IBM 8088

On Aug 17, 2019, at 6:54 PM, Jim Henningsen <trguy75 at gmail.com> wrote:

Help, I'm calling the TR bat phone again.  Switching projects to get my car
ready for AACC southeastern fall nationals on Mobile AL.  1962 TR4 CT5212LO.
Fuel gauge worked prior to restoration but not after.  Car is switched to
neg ground.  Orig fuel sender float was sunk in tank.  Removed it and
verified there is gas in it.  Hoping there is a way to rebuild it since orig
part.  Put in a new sending unit from TRF this morning and added 7 gallons
of gas and it still doesn't work but float rises.  The needle moved ever so
slightly right above E then dropped back down with ignition on.  I even used
a coat hanger to manually raise the float in the gas tank to "full" with
ignition on but needle still didn't work.  Ignition in "On" position, but
not running.  

My thoughts.
1. Bad gauge?
2. Wires reversed on fuel gauge from resto impacting since it is neg not
original positive ground.  Running generator that has been polarized to neg
ground.  
3. connections at new sending unit not secure. Neg is to ground and positive
to pos on sending unit
4. new sender bad

Any thoughts on the possible easy fix before going through the list
tomorrow.  Also, if anyone is looking for a nice 73 Stag with hardtop,
manual tran, that has been owned by a TR owner of 60+ tyears and avid VTR
member, it is for sale in Tally.  I am trying to help the family find a home
for it.  Email me offline if you would like pics and contact info.

Many thanks,
Jim Henningsen
Ocala, FL
60 TR3A
61 TR3A
62 TR4
75 TR6


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