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Old 01-11-2026, 01:02 AM   #4
dmsfrr
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Default Re: Wiring a new voltage regulator-54 Mercury

Quote:
Originally Posted by Bob from Northport View Post
The battery wire is my problem. Do a wire go from the B terminal to the pos. ground side of the battery???
No, not unless you're changing the polarity of the electrical system. A '54 Mercury was originally 6v Positive ground. The wire from the 'battery' terminal on the voltage regulator would connect to the 'battery' terminal of the starter solenoid. And the cable from the positive terminal of the battery would ground to a bolt on the engine.
All three of the battery and starter cables should be 0 or 1 gauge wire.

If you're changing the car to 12v negative ground that's a whole nuther story.
.

Last edited by dmsfrr; 01-11-2026 at 10:46 AM.
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