Battery switch placement

[Bruce Adams]

My way of doing it with the heavy duty switch was through a hole in the firewall so I can tap the switch off and on with my right foot. Its below the starter rod and Is no trouble to engage or disengage. Using "Meathead's RIGHT ON" phrase is how I rememember if its on or off.

[Hotrodmyk]

Originally Posted by MikeK

Put the disconnect in the battery-to-frame ground path. Use the two smaller terminals to switch the 'hot' feed to the ignition circuit, not as a gen/alt output disconnect. When the disconnect is off all points to frame-ground will be safely dead as intended and the engine will also stop as there will be no power to the ignition from either the battery or the spinning gen/alt.

On a stock A, the short black lead from the terminal box to the coil is the 'hot' path you need to interrupt with the two smaller cutoff switch terminals, not the red lead from the coil to the popout switch. If you have electronic ignition you interrupt the 'hot' feed to the non-popout ignition switch, not the wire from the switch to the electronics.

This is what I was looking for. Thanks so much for the info. I, too, am of the opinion to put it in the ground side. The instructions that came with the switch say to place it in the "hot" side. This apparently conforms to a racing sanctioning organization. This is not a race car. Thanks again.