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Reload this Page Cub 1864 Ignition coils
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  #21  
Old 06-11-2015, 10:20 AM
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CubDieselFan CubDieselFan is offline
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Originally Posted by BassBlaster View Post
Looks good! I got mine ordered today from the bay for $44 each. Should arrive Fri.
Which ones did you get, the OEM or the ones made by the OEM supplier?
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  #22  
Old 06-11-2015, 10:35 AM
BassBlaster BassBlaster is offline
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Originally Posted by CubDieselFan View Post
Which ones did you get, the OEM or the ones made by the OEM supplier?
The ad says they are Kohler brand modules.
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  #23  
Old 06-18-2015, 09:37 PM
Rodster Rodster is offline
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Has anyone ever 'dissected' a Kohler ignition coil?

The service manual I have doesn't show points but I thinking there has to be some type of trigger mechanism buried inside the coil? Probably what the kill switch wire is connected to?
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  #24  
Old 06-19-2015, 06:47 AM
bugeye bugeye is offline
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The magnets in the flywheel passing the coil create the voltage spike which fires the spark plug. No points. The spark is timed by the position of the flywheel magnet relative to the piston.
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  #25  
Old 06-19-2015, 08:14 AM
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To add to that, usually the "kill' wire just grounds the primary winding in the coil,
eliminating it's ability to generate current to fire the plug.
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  #26  
Old 06-19-2015, 09:35 AM
Rodster Rodster is offline
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The magnets in the flywheel passing the coil create the voltage spike which fires the spark plug. No points. The spark is timed by the position of the flywheel magnet relative to the piston.
But normally there is a trigger needed to collapse the field creating the high voltage. I don't think just the flywheel passing the primary coil would create enough field for a high voltage.

I've read about some magnetos that have electronics integrated in the coil unit.

I also notice there is a center pole on the coil which would lead me to believe it is there as a control coil and trigger involved.

One of those simple things until you get into the theory!

Part of the mystery is that the two terminals coming out of the coil unit are connected to the outer legs whereas the service manual has a resistance table showing there should not be a short between the terminals and the legs.
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  #27  
Old 06-19-2015, 10:23 AM
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The magnets in the flywheel passing the coil create the voltage spike which fires the spark plug. No points. The spark is timed by the position of the flywheel magnet relative to the piston.


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  #28  
Old 06-19-2015, 05:37 PM
J-Mech J-Mech is offline
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There are no points, no internal mechanism .... nothing. It really is as simple as a magnet induced electromagnetic field. Your way over thinking this. Trust me, I am very certain about this.
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  #29  
Old 06-19-2015, 05:55 PM
R Bedell R Bedell is offline
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It really is as simple as a magnet induced electromagnetic field
Ditto...........
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  #30  
Old 06-19-2015, 11:03 PM
Rodster Rodster is offline
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I trust you, I trust you!

What got me thinking was the resistance test in the service manual. It doesn't indicate the two terminals out of the coil are connected to the outer legs.

I was trying to compare the bad coil with the good coil and I can't find a difference. ??
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