change to alt on super a

lovell · Apr 28, 2013

need info on changing from 6 v - to 12 v +

old · Apr 28, 2013

The archives are full of that info. A simple Delco 10si say for a 1980 Chev pick up no power any thing. Cost from O'Reilly's is around $45 plus a $10 core. The mount if I remember right you flip the generator bracket then use a long piece of all tread and of course a bit of simple fab work.
The to wire it up. By the way you need to 2 wire plug cost is around $5. That plug has a #1 and a #2 on it. The #2 wire goes to the big charge stud on the alternator. The #1 wire goes to the ignition switch with a diode like the Radio shack 276-1661 in line silver line towards the alternator and the big stud has a 10 gauge wire that goes to the amp gauge. Switch the wires around on the map gauge since you have to also switch from + ground to - ground

Dave Sherburne NY · Apr 28, 2013

Here it is compliments of Bob Melville.
Bob Melvilles wiring Diagrams

more

Sammy in Kansas · Apr 28, 2013

Charlies Repair, You will not be unhappy. He can fix you up complete

David G · Apr 28, 2013

Charlie is a great guy to work with.

mkirsch · Apr 29, 2013

The A/B/C series are the easiest to convert.

An alternator should just bolt right in place of the generator with little to no modification, and use the same belt.

Wiring is the most difficult part but even that is pretty easy. Make sure you get the plug pigtail for the Delco 10SI if that's what you get.

1. Swap the wires on the ammeter.
2. Connect the BAT and L wires off the old regulator to the BAT terminal on the alternator.
3. Connect the #2 terminal on the alternator to the BAT terminal on the alternator.
4. Install a ballast resistor, or preferably a 12V coil (marked no ballast required).
5. Run a wire from the ignition switch to a diode, and connect the "line" side of the diode to the #1 terminal on the alternator.

It's really that simple.

lovell · Apr 29, 2013

how about the starter,i know it will run faster but will changing from +g to -g run backwards?

mkirsch · Apr 29, 2013

Nope. Starter works just fine with + or - ground.

Take a wrench and lay it on the starter. It doesn't stick.

There are no magnets in the starter. Both the field and the armature are electromagnets. When you reverse polarity, you are reversing it both in the armature and the field, so the end result is the motor turns the same direction as before. Backwards of backwards is forwards

old · Apr 29, 2013

A starter the way they are wired get there power for both fields from the battery so switching ground also switch the starter so it spins the same way no matter how you hook it up. Starter RPM will almost double and amp draw will almost drop by one half

teddy52food · Apr 29, 2013

Old; you have that right, but there are those that still insist the magnetic field comes from the current. Wrong! It comes from the VOLTAGE.

old · Apr 29, 2013

Well it is a mix of both from what I was taught. With out current you have very little but with out the volts to push the current you still have nothing to to play hand in hand. The way I was taught voltage is the pressure and current or amps was the amount sort of like water. You have the voltage or with water thew pressure and then the amps is the amount or size of the flow rate

change to alt on super a

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