Posted by Mark on November 04, 2009 at 13:17:14 from (71.30.209.232):
For those of you that have followed this thread, here are today"s findings:
The distributor is 180 degrees out....so we moved the wires accordingly to put it back in time. The new coil I had bought wasn"t making a lot of spark, so my pal mounted an old, but good, 12 volt coil and the tractor fired right up!
For about 5 minutes and then quit.
Hmmm!
That coil was dead as a mackerel. In fact, when it died today, it acted just as it did when this problem started......run a minute or so and die.
I had a thought.....what if the alternator was charging wide open.....dumping totally unregulated voltage into the system.....could/would that kill a coil?
Obviously, I had to get another coil before the engine would start again and so, I did. I bought a new 12 volt UNballasted coil, added a ballast and fired her up. I checked the VOLTmeter and it was off the scale...buried to the right!
I unhooked the alternator and let the engine run off the battery and then stuck the fluke meter to the alternator....19.4 volts! I never even tried an amp reading.
So.....maybe I am wrong, but I think the alternator fried my first coil, fried the good old one we mounted this morning and would have fried the new one had I left the alternator hooked up.
Oh...have I ever noticed anything with the battery before....No. I think this alternator issue just started.....as in when the tractor first quit a few days ago and I have been busy trying to fix it ever since.
Whatever the reasons, the tractor runs fine now. Hot coil and plug wires put where they needed to be.
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