Posted by jimtrs on October 19, 2021 at 10:12:58 from (73.219.194.27):
In Reply to: Tractor coils posted by 300jk on October 18, 2021 at 15:10:35:
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Coils need to run with about 4 amps of current. Forget about points / no points.
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Forget about points / no points. If you run a 1.5 ohm resistance coil on a 12 volt system, without additional resistance, you will eventually burn up the Coils
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A true 12 volt coil has around 3.0 ohms of resistance. Should NOT be any additional resistors in the circuit. If there was, the system would have a very weak spark.
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Good. See last statement above
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Yes. Too much amperage. But you just said above Quoting Removed, click Modern View to see
Again, a true 12 volt coil has around 3.0 ohms of resistance.
So is it a coil with 1.5 ohms of resistance, or a true 12 volt coil with around 3.0 ohms of resistance? Can't be both.
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This either has additional resistance inline, or you have been very lucky, ..... so far.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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