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Ignition Coil
Coil is designed to operate with an external ballast resistor on V8 and 6 cylinder models. Models with 4 cylinder engines have a coil designed to operate without an external resistor. When testing coil for output, include resistor tests (if coil uses a resistor). Also inspect coil for external cracks and arcing. Test coil according to coil tester instructions. Replace coil and ballast resistor, if used, that do not meet specifications.
| Primary Resistance @70-80°F |
|
| Prestolite |
1.60-1.70 Ohms |
| Essex |
|
| |
V8 and 6-Cyl. |
1.34-1.55 Ohms |
| |
4-Cyl. |
1.41-1.62 Ohms |
| Secondary Resistance @70-80°F |
|
| Prestolite |
9400-11, 700 Ohms |
| Essex |
|
| |
V8 and 6-Cyl. |
9000-12, 200 Ohms |
| |
4-Cyl. |
8000-11, 200 Ohms |
| Ballast Resistance @ 70-80°F |
|
| V8 and 6-Cyl. |
1.1-1.3 Ohms |
| 4-Cyl. |
Not Used |