I am putting diodes in the Ness Starter boxes and I just noticed the printing on the back plate at the battery terminal is stamped " + battery" The wiring diagrams I have looked at on the 1925 era DBs all show the Positive terminal of the battery going to ground (positive Ground) so why would they stamp the identity of the battery terminal with a Positive?
I have always connected them Positive ground but now am wondering why they would stamp that terminal + when it should be stamped - ?
This will depend on what type of diode I will use, case anode or cathode.
If someone hooks the battery up as negative ground the starter/generator will of course start cranking the engine if I put the proper diode in for positive ground.
Do most of you have them connected positive ground as the wiring diagram shows. With the old cutout relay it didnt make any difference unless yiou are using a pertronix ignition module in the distributor.