electrical and ignition Specs for a Coil w/ internal resistor?

[BlueBarchetta]

 I have a '74 w/ no ballast resistor, I'm getting 3 ohms at the Primary, which I know is good. But my question to everyone is this; is 13K Ohms for the secondary a good # or fall within specs? I didn't have a 'helper' last night to turn the ignition key to see if a spark will jump from the cable that goes from coil to top of dizzy; will get this done today....

[hchueh]

That sounds good to me. 10-14K is the range for goodness!

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[peterschop]

The '74's came with the "hidden" resistor wire. Has it been removed? 

[BlueBarchetta]

HC, Thanks for the info.. Peterschop, I don't know. I'll have to check, and also check out the wiring diagram...

[Stevenc22]

Take the positive wire off the coil and measure resistance with a voltmeter. It should be close to zero but If it is 0.9 ohms, you still have your resistance wire installed!!!

Edited May 26, 2015 by Stevenc22

[thinksound_mike]

74 with a blue coil? The resistor is internal at least as far as everything i've read. 

 

This is from IE's mechanical dizzy install instructions:

"If you use the Bosch Blue coil you do not need the resistor. The Blue coil has a resistor built inside the case."

[Stevenc22]

^The cars never came from factory with a blue coil, therefore all cars have resistors. If you convert to a blue coil, you have to remove the factory resistor.

[thinksound_mike]

^The cars never came from factory with a blue coil, therefore all cars have resistors. If you convert to a blue coil, you have to remove the factory resistor.

Never knew that! I have a 74 with a blue coil and just assumed it came that way.