[Mgs] Fuel smell in boot/trunk

[Charley & Peggy Robinson]

 From looking at the wiring diagram of the MGA I see that it doesn't 
have a voltage stabilizer to feed the gas gauge & sender;  it depends on 
the output voltage (V) of a terminal on the control box. I suppose 
that's a nominal 12V but I don't know the  delta V. Either MG A or B 
that supply V is going to vary a bit from car to car with the B being 
better regulated and you have to take into consideration the condition 
of the wiring harness, so I agree that each gauge should be calibrated 
on the car.   Also, I've never seen a gas gauge whose readings I have 
ever considered to be exact.  I see it more like a guide.

CR

On 4/18/2015 3:17 AM, PaulHunt73 via Mgs wrote:
> Don't expect the gauge to be linear even when recalibrated.  I
>
> Incidentally replacement senders vary wildly from the originals and 
> even each other.  because of that you can't reliably recalibrate the 
> gauge using the resistance values given on Barney's site, you can only 
> do it in the car with the appropriate tank and sender.
>
> PaulH.
>