Posted by John T on August 15, 2009 at 13:32:16 from (66.244.97.31):
In Reply to: '71 Ford 2000 Ignition posted by George Reed on August 15, 2009 at 12:38:18:
I dont know beans about that particular tractor but it sounds like youre NOT supplying hot voltage to the coils input when in the ON position. Put a test lamp on the coils input (NOT to distributor) terminal n turn on Ign switch n see if it lights up AS IT NEEDS TO. If not see which switch terminal is hot when in ON position and see that it wires down to the coil perhaps?? some sort of discrete ballast resistor or resistive wire link etc.
See if a test lamp on the coils input lights up ONLY while youre cranking it AS IT STILL SHOULD (even if switch mis wired) if the solenoids lil I terminal wires to it which is to by pass any ballast ONLY WHILE CRANKING FOR A HOTTER START SPARK.
If it has a ballast and if its bad/open or the ign switch is miswired it can run ONLY while cranking cuz ONLY THEN is the ballast by passed and its the solenoids lil I terminal thats supplying hot coil voltage
The problem may be: Mis wired switch (needs hot voltage to coil when ON) orrrrrrrr an open or bad or miswired ballast circuit (if it has a ballst that is) orrrrrrrr the wires open from switch to coil or mis wired
NOW let the Ford men figure it out cuz they will know if it even has a ballast
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