What Bartamos said. Does the starter look like Pic #1 attached? That 's a foot pedal operated starter.

I've also added your diagram with some markups. Looks OK in general. (No grounds needed or wanted on the switches you show.)

[on edit] Bill, I believe the regulator is isolated from ground. It has rubber mounting bushings that isolate it from ground. Nope, you're correct. It should be grounded thru the mounting screws.
Attachments
IMG_4472.JPG (338.27 KB, 123 downloads)
Diagram-2.jpg (241.23 KB, 123 downloads)

Last edited by klhansen; 03/13/2025 9:56 PM.

Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.