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Re: Alternator
In post #16 you said 13V.
In post #30 you said you bumped the idle 150 up tp 850.
Are you now saying your new 12SI is providing 12.3V at 700 rpm?
In post #11 you provided a picture of the old 10DN alternator. What was its output voltage , at what idle rpm?
Unless you have a high load at idle, it doesn't sound like the new 12SI is working properly.
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'67 GMC 2500, 292, 4spd, AC
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