Quote:
Originally Posted by Badpuppy
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If the coil is wired according to the electrical drawing, its current is added to the battery charge reading. Ford issued a service bulletin to move the coil connection to the generator side of the junction box, excluding it from the ammeter. Best I can tell, the drawing did not reflect the change until 1932, after the model A run.
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This change was recommended on page 390 of the November 1929 Ford Service Bulletins.