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Old 09-07-2010, 04:46 PM
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63 ford generator to 3wire GM alt conversion

am currently trying to figure out the wiring on my 63 to convert to a gm 1 wire alternator. this is a complete long block dropped into a 63. we disconnected the voltage regular wires from the voltage regulator.

1. what stock color wires should we hook up from the 63 to the gm alt?
We are stuck and have had 6 different opinions from people who have no idea what they're doing, so you guys got it on this one.
2. Is it possible to hook up the idiot light on the alternator, is it a brown wire?

thanks very much if anyone can help.

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Last edited by fordsucks7; 09-07-2010 at 04:55 PM.
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Old 09-07-2010, 06:15 PM
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If you want the idiot light to work, you probably want to hook it up as standard 3 wire GM alternator (usually a 10si or 12si).

Large Red wire - BAT terminal, (charge) runs to battery positive. Usually 8-10 gauge (depends on alternator output) with a fusible link

White wire (maybe brown) - #1 terminal in two wire plug - Turns alternator on; run to ignition switched power, usually through either a charge/idiot light or a resistor

Small Red wire - #2 terminal in two wire plug - Sense wire that makes the alternator output adjust. You can jump it to the BAT terminal and it will work, but if you run it up to your main wire junction it will be more accurate in sensing the real voltage drop across the harness. More accurate sensing will give you more consistent voltage under load.

Bruce
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Old 09-09-2010, 04:20 PM
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63 ford conversion to alternator

on this line of thinking, i am doing same thing but have a flamethrower system ignitor and coil. does anybody know if you can burn out your ignitor if you hotwire it?
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