Ignition wiring

I did a little checking on what has become my favorite library, the web.

There's a good discussion of the 1 wire Delco SI configuration on the link below. You might take a look and see if this matches up with the alternator you have. Also, note that the Delco doesn't kick in until 3,000 RPM. Your 1020 doesn't want to run that fast. So if this the setup you have, you may want to rethink using it.

Steve

• Delco 1 wire SI

Mark,

I hope you mean the ignition switch, because aside from the diagram I already sent you; this is the only other electrical diagram that is in my service manual.

Steve

It's surely worth a try, but I'd be surprised if the JD manual has any more wiring info than the I&T manual.

The other fly in the ointment is that you have that Delco alternator with the built in voltage regulator. Probably the best thing is to get a diagram for that part -- Delco's suggested application diagram -- and see if you can back it in to the Deere diagram. There may be an old hand at the JD dealer who's seen that Delco replacement setup, too. No fun trying to figure out somebody's custom setup when there's no documentation.

Steve

The local TSC here carries I&T manuals. Same thing I've got. Amazing the old stuff they carry in those stores.

Did you notice the bit about the resistor / and or pulley size on that link I posted for the Delco alternator. Looked like that guy knew what he was doing.

Steve