[Mgs] 54 TF ammeter question

Barney Gaylord barneymg at mgaguru.com
Sun Jan 18 08:43:11 MST 2015

I will guess that when you "switched" the two wires you actually 
reinstalled them the same as before.  Want to try it again?

At 03:24 PM 1/18/2015 +0000, dontoy--- via Mgs wrote:
>Dear listers,
>I have a 1954 TF which my father drove home from Pittsburgh in 1971. 
>After an electrical problem way back then the ammeter got fried, 
>along with damaging the temperature gauge. In an effort to go back 
>to original I sent both units out for restoration to MoMa. I 
>installed the temperature gauge first and it went up to 185* and 
>held it there. That made me smile. Then I installed the ammeter. 
>Since I had did the polarity switch (now a negative ground car) I 
>wasn't sure which wire went on which terminal. I just guessed and 
>put the brown with white on the left terminal, the solid brown on 
>the right.  Of course upon starting the car, the ammeter ran in the 
>negative side. 50% chance and I guessed wrong. So I thought. After 
>reversing the wires I got the same result. I know I'm charging since 
>I have never had a problem. I don't run a trickle charger and can 
>start the car anytime in go out into the garage, even after months. 
>Is this just one of the effects of switching the polarity or is 
>there something I'm missing. I was showing a charge on the 
>aftermarket unit that I was trying to replace. Ideas?
>Don Toy
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