[TR] Fuel gage / sending unit issue - Spit bodied GT6

[Dave Connitt]

Responding to the original post requesting the resistance range of a Triumph fuel gauge sending unit.
My new TR4 TR4A sending unit measures as follows:
Full tank = 19 ohms
Empty tank = 244 ohms
Dave Connitt 

Sent from my iPhone

> On Oct 12, 2022, at 7:58 PM, Joel Justin <j_bar_j at hotmail.com> wrote:
> 
> 
> I did a lot of research on fuel and temp gauge calibration for my TR4. I've attached a "tech doc" I wrote for our club's newsletter. You might find useful information in it. Good luck!
> 
> Joel Justin...
> 
> From: aribert neumann <aribertn at gmail.com>
> Sent: Tuesday, October 11, 2022 5:46 PM
> To: triumphs at autox.team.net <triumphs at autox.team.net>
> Subject: [TR] Fuel gage / sending unit issue - Spit bodied GT6
>  
> Greetings all.   Long time since I've posted, my car has, up till yesterday, been behaving itself nicely.   Yesterday the driver's door glass dropped off of the window regulator as I was trying to wind up the window prior to backing out of the garage.  Then later the same day the fuel gauge suddenly displayed well past a full tank.  The tank is at about 1/3 to 1/2 full.  
> 
> The water temp gauge is reading correctly so I am thinking the bimetal voltage stabilizer is OK.  I checked the connections at both the tank and gage.  I checked that the ground lead at the tank was grounded.   I am measuring about 67ohm across the sending unit terminals.   The Bently manual is worthless on this subject - simply stating that there is no repair to either gage or sending unit and replacement is the repair method.  No resistance values given for empty and full tank.  Frustrating.  Before I order a fuel tank sending unit, does anyone know what the ballpark resistance values might be?   What am I forgetting to check?   
> 
> TIA.   Off in digest mode awaiting your answers.
> ** triumphs at autox.team.net **
> 
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