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In Reply to: 52 ford tractor 8N no spark posted by wally on Sunday, July 20, 2008:
An easy way to check the coil is to check to see if it is getting power to the ignition terminal on the coil. If not your trouble is somewhere between there and your ignition switch or the feed to the switch. If you have power to the coil, remove distributor cap and rotor. Click the starter until you reach a low point on the dist. cam at which point the points close. Now remove coil wire from top of distributor and while holding the tip of the removed end of the wire about 1/4 inch away from a ground (any part of engine or grounded part of tractor), with your other hand open and close the points. If your coil is good, you will get a nice bluish white spark arc to the ground from the coil wire.Doing it this way eliminates the distributor secondary wiring entirly in the test otherwise by just pulling a spark plug wire and cranking it over leaves open the posibility of the problem being anywhere between the ign. switch and the spark plug including the points not opening. If you suspect the points are totaly burnt and not passing a current, then leave them in the open position and simply jump across the open point with a screw driver, or with a piece of wire, groung the ditributor side of the coil with the points OPEN.
Good luck
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