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

[DAVID MASSEY]

 I'm not sure but I seem to recall that 67 ohms is in the normal range for the sending unit.  I suspect the gauge is faulty.
If you have a spare or if you know someone with a spare you can try swapping it out.
 
Dave 


 
 
-----Original Message-----
From: aribert neumann <aribertn at gmail.com>
To: DAVID MASSEY <dave1massey at cs.com>; triumphs at autox.team.net
Sent: Wed, Oct 12, 2022 6:40 am
Subject: Re: [TR] Fuel gage / sending unit issue - Spit bodied GT6

Dave:Thanks for the reply.  The gage drops to zero when either wire is removed from the sending unit.
All:Any info on sending unit resistance (even from other Triumph lines such as the TR4, 250, 6) would be appreciated - I am guessing that the same supplier (Smiths) was used for multiple lines and that the values would be somewhat similar.
On Wed, Oct 12, 2022 at 7:29 AM DAVID MASSEY <dave1massey at cs.com> wrote:

 What happens when you leave the wire off of the sending unit?  Does the gauge still go full-scale or does it read zero?  It could be a short in the wiring.
 
Dave 


 
 
-----Original Message-----
From: aribert neumann <aribertn at gmail.com>
To: triumphs at autox.team.net
Sent: Tue, Oct 11, 2022 7:46 pm
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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