Fuel and temp gauges 57

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Joined
May 2, 2022
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My 57 has a new temp gauge and a rebuilt fuel gauge. They have the constant voltage regulator in common. The regulator is working as described in the shop manual ( variable 0-6 volt) for an average of 5. The test given in the shop manual is to use 2 flashlight batteries to get 3volts. You hook that up to the two terminals on either gauge and they should show about half scale.
Both of mine go full scale.???
Any suggestions?
 
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