11-05-2004, 08:59 AM
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CC Member
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Join Date: Sep 2001
Location: Arvada, Colorado,
CO
Cobra Make, Engine: Superformance #1231 428 FE
Posts: 66
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Not Ranked
Voltage regulator wiring
I am adding a dash mounted alternator warning light to my regulator circuit using the standard Ford type 4 post regulator. I initially assumed that the "I" post on the regulator produced 12v when the alt was not running (dropping to 0v when charging) which would power the light. This does not appear to be the case. After looking at wiring diagrams from Bob Putnam's ERA web site I am now thinking that the "I" post acts to interrupt the warning light circuit (acting as a groung for the light) opening the circuit when the alt is charging. Could someone confirm this before I attempt to put 12v at the "I" terminal? I would hate to fry the regulator internals testing this hypothesis.
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Keith
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