Delco 12SI Wiring Diagram for a 2007 Jinma 284

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    • December 22, 2015 at 5:53 pm #45734
      Tmoore948
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        I would like to remove the Oem Alternator and replace it with a Delco 12si and need the wiring diagram. I searched the board and the one on here is too small a pic to make out. My Battery light stays on all the time and I have already replaced the Regulator once already We have really harsh winters and I suspect the cold may be causing the regulator to fail.

      • December 23, 2015 at 1:45 am #45736
        Bob Rooks
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          Are you sure it’s the “battery light” and not the “key on” indicator light? There is also a red LED on the voltage regulator that indicates there is “sense” voltage to the alternator field circuit.

           

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        • December 23, 2015 at 1:51 am #45739
          Bob Rooks
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            Also, if you upgrade to a Delco Si series alternator you will have to upgrade the wiring because the OEM alternator only has a nominal output of around 14 amps. And it is recommended to install a smaller pulley to allow the Delco to perform as required.

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          • December 23, 2015 at 1:56 am #45740
            Bob Rooks
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              Read this thread:

              http://www.ctoa.net/topic/alternatorkeyswitchvoltmeter-replacement/

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