Hot ballast resistor and smokin. no start at all when turning key

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I got my duster to crank over with a key now,all off sudden one of the blue wires on alternator started smokin and it melted. Is something wired wrong?
 
I got my duster to crank over with a key now,all off sudden one of the blue wires on alternator started smokin and it melted. Is something wired wrong?
A lot of alternators sold now as grounded field are two terminal alternators with one field terminal grounded. It sounds like you're sent 12v power to one of those grounded terminals.
 
A lot of alternators sold now as grounded field are two terminal alternators with one field terminal grounded. It sounds like you're sent 12v power to one of those grounded terminals.
Oh ok how do you fix that?there is two wires in one on alternator part of harness
 
I would try to get the points regulator issue solved first - this combo may not be ideal, but it shouldn't let the smoke out, either. Check the resistance from both field terminals on the alternator to the alternator casing and let me know what you measure on each.
 
Oh ok how do you fix that?there is two wires in one on alternator part of harness
The first thing you need to do instead of jumping from one thing to another is do some actual DIAGNOSIS! Without that, you'll never figure it out.
 
Have you ever had the car running the way its hooked up 72 had electronic ignition and electronic voltage regulator and distributor origionally
 
Have you ever had the car running the way its hooked up 72 had electronic ignition and electronic voltage regulator and distributor origionally
No l haven't,it was a points originally.l did the conversion to electronic.left the points regulator in.i'll put a electronic regulator in
 
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The first thing you need to do instead of jumping from one thing to another is do some actual DIAGNOSIS! Without that, you'll never figure it out.
Can't leave the key on very long it will start smokin and fry one of the wires on alternator,after cranking it.
 
No l haven't,it was a points originally.l did the conversion to electronic.left the points regulator in.i'll put a electronic regulator in
Get the alternator figured out first. If one of its terminals is shorted to ground internally, it's not going to work with a later electronic regulator.
 
Get the alternator figured out first. If one of its terminals is shorted to ground internally, it's not going to work with a later electronic regulator.
For the alternator,is supposed to be one blue wire goin to to it on top? One green wire goin to bottom of terminal?
 
For the alternator,is supposed to be one blue wire goin to to it on top? One green wire goin to bottom of terminal?
Doesn't really matter which of the field terminals gets the blue and which gets the green wire, but yes. So you will want to disconnect both wires and make sure neither terminal on the alternator is shorted to ground. If you don't have a multimeter, use a test light with one end on the battery positive terminal and the other end on the alternator terminal to be tested with the alternator on the car; it shouldn't light up (but should light up with one wire on the battery positive and one on the alternator casing).
 
Doesn't really matter which of the field terminals gets the blue and which gets the green wire, but yes. So you will want to disconnect both wires and make sure neither terminal on the alternator is shorted to ground. If you don't have a multimeter, use a test light with one end on the battery positive terminal and the other end on the alternator terminal to be tested with the alternator on the car; it shouldn't light up (but should light up with one wire on the battery positive and one on the alternator casing).
My blue wire is a double blue wire with this new wiring harness I got.my old harness was single blue wire.one of the blue wires melted.Can convert it back into a single wire again? Do you need double blue wires?
 
Typically the blue wire will go to the field coil and to the voltage regulator. It could be spliced at the alternator, at the regulator, or some other point in the harness.
 
Typically the blue wire will go to the field coil and to the voltage regulator. It could be spliced at the alternator, at the regulator, or some other point in the harness.
Thats the wire that smoked and melted was the voltage regulator wire. The other blue wire next to terminal didn't
 
Where does that blue wire go? That is on alternator?see the other wire got burnt next to it

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Hows it wired before l added the new wire where it got melted at.

20260103_135823.jpg
 
You'll need to check with who built the harness since it's an aftermarket kit. This is either feeding 12v power to the field coil and voltage regulator, or it's taking power from the field coil and sending it somewhere, most likely the ignition coil. If it wasn't plugged in, though, it's not what made the wire smoke.
 

You'll need to check with who built the harness since it's an aftermarket kit. This is either feeding 12v power to the field coil and voltage regulator, or it's taking power from the field coil and sending it somewhere, most likely the ignition coil. If it wasn't plugged in, though, it's not what made the wire smoke.
I got the harness through classic industries. They got the harness through someone else.
 
Goes the harness have plugs for your electronic ignition and electronic voltage regulator like it should
 
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