Key switch and Ignition Transmission Interlock Plunger?

papapauls8n

New User
Is it normal for a 1950 Ford 8n to still turn over even with the key switch off? If you push the ignition plunger the starter still turns the engine over even if key is off.Upper pole of junction block is not energized when key off so no power to coil but starter still turns engine over.
This is a 6 volt tractor with a newer wiring harness installed by my grandfather before my time.I have been cleaning and detailing my way around the engine, I took very detailed pictures before removing the harness and put it back exactly as it was.It may have not been correct from the day I started on it.
I have two yellows on lower junction pole , one yellow to voltage regulator, one to starter solenoid, two ignition switch wires one on each pole,red on upper pole which goes to generator.
 
(quoted from post at 11:05:10 09/14/14) Is it normal for a 1950 Ford 8n to still turn over even with the key switch off? If you push the ignition plunger the starter still turns the engine over even if key is off.Upper pole of junction block is not energized when key off so no power to coil but starter still turns engine over.
This is a 6 volt tractor with a newer wiring harness installed by my grandfather before my time.I have been cleaning and detailing my way around the engine, I took very detailed pictures before removing the harness and put it back exactly as it was.It may have not been correct from the day I started on it.
I have two yellows on lower junction pole , one yellow to voltage regulator, one to starter solenoid, two ignition switch wires one on each pole,red on upper pole which goes to generator.

" Is it normal for a 1950 Ford 8n to still turn over even with the key switch off?"

Yes.

The key controls voltage to the coil, not the starter.

Google "wiring diagrams JMOR" to find the correct diagram for your tractor.
 
Thank you for your quick answer, trying to get this old girl to fire today after many years sitting and a year of cleaning, painting and rebuilding.
Being a perfectionist the starter / plunger issue I created in my own mind was bugging me.
 
(quoted from post at 11:47:00 09/14/14) Thank you for your quick answer, trying to get this old girl to fire today after many years sitting and a year of cleaning, painting and rebuilding.
Being a perfectionist the starter / plunger issue I created in my own mind was bugging me.

Same as the old cars with the starter knob on the floor that you pushed with your foot. They always turned the engine over but it would not start unless you had the key switch turned on.
 

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