JD 4010 gas voltage.

Anonymous-0 · Jan 10, 2013

I have been reading on here about how Some Deere tractors were 12 volts to the starter and only 6 volts to the coil. It was converted to alternator long before i was around so i was wondering how i figured out if it was or not. i replaced the old coil with a new 12. it will start and run for while then it shuts off like i turned the key switch off. maybe because of that? or a short in the wiring somewhere? I am in need of some new ideas thank you

NEIADan · Jan 10, 2013

You ask a common question and misunderstood part of the point and condensor ignition system. Your 4010 should be wired to start on 12 volt going to the points during starting and runs on 6 volt. This is accomplished in on of two ways. The most common and used on your 4010 is the use of an external resistor. your ignition voltage is reduced to 6-8 volts during normal operation this keeps the coil from overheating, damage to the capacitor and pre mature point failure. During starter operation you have a hot wire activated from the solenoid to bypass the resistor and shoot 12 volt to your coil and points. Sometimes you will find a 12R (built in resistor) coil installed with an external resistor really messes up a good system. I found to really make thhose old gassers respond spend the 200 bucks on a electronic ignition and matching coil. Those 4010's can start faster than a diesel and respond without being cold blooded if updated.

JD 4010 gas voltage.

Anonymous-0

Well-known Member

NEIADan

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