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Old 01-04-2022, 01:23 PM
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kk68 kk68 is online now
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Join Date: Jul 2004
Location: Cary, NC (Raleigh/Durham/Chapel Hill area)
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dd:

Yes, I agree that diagram is wrong for voltage reg wires. Here's mine which is the same as yours. However, when I initially did my startup and breakin I was not getting the battery to charge. After switching alternators, voltage regs, etc, discovered that the M&H harness wire clip into back of alternator (R on left, F on right side) had the blue and black wire reversed (see last pic). Fortunately no damage done, switched them around and all good since. Glad you got yours straightened out and found the faulty cause (bad headlight switch). Chasing the electrical gremlins are a big pita!
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Don't rush me - it's only year 20 of the 3 year restoration!

68 GTO convertible
YS M40, A/C, PS, PB-disc, Posi-T, PW, P-seat, AM-FM stereo 8-track,
P-ant, P-trunk lid, Tilt-S, Rally gauges, Hideaways
C1 224 Triple white