106-check my diagnosis

[jbrewer]

Originally Posted by save_old_iron

John,

sounds like multiple problems on the tractor, especially since there are "a few leads that aren't connected to anything".

What a great post, thank you, and I'll give that a look. I think that's what Vince was referring to also in his post. I do have an extra regulator, but since I like taking stuff apart, I'll do this when I get a spare moment. Again thanks for taking the time to photograph this, it'll be a huge help.

Mechanical regulators are interesting beasts. I'll have to find a schematic that included the details of the coils and contacts inside the "black box" , as it would help explain this sneak path for current. In any event I'd like to understand these things...whether there is electromechanical hysteresis built in and how, etc. They're remarkably reliable for what they are.

Re: the "extra wires"...I suspect some are for lights, etc. There's one violet wire that comes out of the harness at the S/G area that doesn't seem to go anywhere and there's a small red wire...maybe 18G at the dash tower that disappears into the harness that is not connected either, but has a nicely terminated ring terminal on it.

John