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H mag update part IV

Z

Zachary Hoyt

Well-known Member
I got the new coil and condenser in the mail today. I put the condenser in, nothing happened. I changed the coil and then I had spark. I set the timing and drove about 3/4 of the way home, at which point the tractor died again. Now I have continuous 1/4" blue spark when I test the coil but nothing from the plugs. I do not understand the inner workings of the mag well at all, so I am not sure which parts are indicated as being potential problems now. The new coil is slightly bigger around and now I am no longer able to remove the condenser with the coil in place. The points are new and I filed and gapped them before I put the new coil in. Cap and rotor are new, wires are new. I need to check tomorrow to make sure I have good wire connections. I towed the tractor the rest of the way home with help from my sister, so now it is in a handy spot to work on. Any advice will be very much appreciated.
Zach
 
If you have nice blue coil spark, leave the points and condenser (and coil) alone.
It must be passing spark to ground inside the cap and rotor, or the rotor is not aligned, or the tab is broken off, or the button contact in the center of the cap is broken.
The new rotor and cap are not a sure thing, Try the old ones to be certain, they are often replaced without cause. Corrosion on their tips/terminals causes no real issues at 10,000volts or more. cracks, moisture, or carbon tracks (visible as a slight discoloration and texture) will provide a path to ground.
If the weather is humid, or the tractor has not run for a couple of months. Jim
 
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