do I need a resistor?

I also have a 12V coil, and a 12V battery. I there anything else I need? I don't think I have a regulator. So I'm not planning on adding one unless it's required. This is my first tractor, so it's all a bit new to me.

Thanks, Michael

The voltage that Altinators and Generators put out, depends to a large part on what the regulator setting is at. Without a voltage regulator, you will kill everything, battery, coil, crabgrass, (The crabgrass gets killed by the battery acid that will violently boil out of the battery)
Happy Motoring
Claus

• Nseries

Then it should be just a parts swap.

Rather than wait mine to be rebuilt by him, I ordered a rebuilt one from a mail order house. Mine is a 1 wire genny, but they also make 3 wires. From the outside, it is identical to the 6V unit.

Regardless, my question is: where do I install the resistor? Right after the Cutout Relay? Or just before the Coil? Is the goal to reduce current to the coil only, or to the battery as well?

Thanks, Michael

As for the resistor:

If you're using a 12v coil, I'm not sure what resistance you need -- it may depend on the coil.

If an OEM coil, you could replace the OEM resistor with higher value or add another in series with the OEM resistor -- mine has just the new resistor (for a 70's Chrysler product). You need something between 3 and 4.5 volts at the coil with the points closed, the engine stopped and the ignitions switch on (mine's a little over 4v). It may take some experimentation to get the right resistance.

The latest info that I have is the 12 volt frontmount ignition coil is specified for 13 volts max. This is why you need a resistor. Most 12 volt alternators and I suspect 12 volt generators put out about 14.5 volts. Otherwize, they won't properly charge the 12 volt battery. 14.5 volts is too much power and will overheat the ignition coil and melt the insulative tar and short out the turns and stop your sparkies and burn out your ignition points.

I'm more concerned about your appearent lack of a regulator for your 12 volt generator. That is why the Delco SI-10 12 volt alternator is so popular for 12 volt conversions, it has a "built-in" voltage regulator.

I would encourage you to carefully study the readily available conversion wiring diagrams, know and understand them well and particularily those that employ an external voltage regulator because you are on your own..... ....Dell

Where can I find wiring diagrams that would tell me where in the wiring scheme to install a resistor or regulator? Once I have installed a regulator or resistor, do I set my genny output to maximum? Thanks, Michael

He'll most likely still need the resistor for the 12v coil even if the coil doesn't come with anything that says so (listen to the voice of experience on this one!) I think they're generally designed to use the OEM resistor.