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Ford Tractors Discussion Forum

6 volt to 12 conversion starter button and 4 post relay

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Author  [Modern View]

04-15-2018 17:01:04

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I purchased a 6 to 12 generator to one wire alternator kit. My tractor was a neg ground 6volt and is now 12 volt negative ground. It has a 4post starter solenoid. I can't get it to work with the thumb button switch.

The starter solenoid. Batt one side and the starter cable on the other. Standard set up. The "S" terminal is ground to the case and frame. If you jumper between the S and battery terminal it energizes the solenoid. The thumb button when pushed only connects a ground. I can ohm the button and it works providing ground continuity when pushed.

In this set up the thumb button doesn't work. What am I missing?

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04-16-2018 08:45:54

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 Re: 6 volt to 12 conversion starter button and 4 post relay in reply to mtinal, 04-15-2018 17:01:04  
Thank you. I had bought a Ford F150 solenoid.
After I got out the multi meter your reply made sense to what I was fighting. Just ordered a replacement from yesterdays.

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04-15-2018 17:34:50

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 Re: 6 volt to 12 conversion starter button and 4 post relay in reply to mtinal, 04-15-2018 17:01:04  
Once the power is on to the solenoid the thumb button has to ground the solenoid to start.

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04-15-2018 17:27:02

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 Re: 6 volt to 12 conversion starter button and 4 post relay in reply to mtinal, 04-15-2018 17:01:04  
You need a different type of starter solenoid and a little rewiring.

I drew this simple diagram for an 8N, but it's pretty similar to what you need.

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