What the heck is this thing?

2002p51

2002p51

Junior Member
We started re-wiring our '47 Mercury yesterday (converting it to 12 volts), and in the process of ripping out all the old wiring, I came across this:

rewire002-vi.jpg


rewire003-vi.jpg


It was way up under the dash. It has a small "Ford" script on one side. Since I'd already pulled out all of the under hood wires I couldn't trace where it was connected.

So, anybody know what this is?
 
there are two devices on the fiber board. The small round one is the voltage dropping resistor for the ignition coil. The original coil does not run on 6v more like 3.5V
The square device is the light circuit breaker. if the current in the light circuit is excessive (like due to a short circuit) it operates and removes the voltage to the lights, after it cools it automatically resets and returns the voltage, if the overload is still there it will operate again. If your going to 12V you will want to replace the circuit breaker with fuses, if you plan to use a 12V coil the resistor is also unnecessary. If your going to use a coil that requires a series dropping resistor the original one on this board is not the correct size.
 
Thanks guys,

I'm using a complete kit from American Autowire so I'll be replacing everything with new parts from the kit.
 
You must log in or register to reply here.
Back
Top