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Coil Problems

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trbleman:
I decided to tune my 66 mustang 289 because it was not running very smooth. I put new points, condenser, wires, cap, rotor and spark plugs. I started it up and it still did not run good. It sounded like some of the cylinders were not firing 100%. I checked the coil and it was week, so I bought a new one. The new one is slightly different. Instead of the post being marked with Dist, and Batt, it is marked with a - and + mark. I put the dist wire on the - side and the batt side to the + side. Now the motor has no spark at all.
Did I do something wrong?

Soaring:
The (+) side goes to the battery, and the (-) side goes to the coil.  Check your connections carefully.  If you can't get a spark, put your old coil back on and see if she starts.  If so, then take that bad coil back and get another one. 

champion2211:
I am having the same problem now. I have went back and replaced everyting and the ballast wire has been bypassed with a ballast resistor mounted on the fire wall. The + wire is going to the + side of the coil and the - wire goes to ground. The + wire from the points goes to the + side of the coil. All internal and external parts are new. New points, condenser, cap, rotor, wires, coil, and with all this still no fire. Champion2211

trbleman:
Problem solved!! I replaced the wire that goes from dist. to coil and there was no change. Decided to check the other wire and noticed that previous owner spliced that wire but it came apart. It was buried under a mound of black tape so it was not visible. The coil was fine.

Soaring:

--- Quote from: champion2211 on June 05, 2009, 01:30:55 PM ---I am having the same problem now. I have went back and replaced everyting and the ballast wire has been bypassed with a ballast resistor mounted on the fire wall. The + wire is going to the + side of the coil and the - wire goes to ground. The + wire from the points goes to the + side of the coil. All internal and external parts are new. New points, condenser, cap, rotor, wires, coil, and with all this still no fire. Champion2211

--- End quote ---
The (-) side of the coil goes to the points, not the (+) side.  The (+) plus side of the coil goes to the battery. 

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