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Re: Electronic Ignition Question

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Author  [Modern View]

10-12-2012 06:15:17

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Quoting Removed, click Modern View to seeAlways safest to contact the mfgr of the EI module, is probably Pertronix or Genesee (same part) & the mfgr specifies a coil plus resistor (total resistance) to be a minimum of 3 Ohms. Sounds like your coil is less than 3 & needs the resistor added to bring it up to 3 total. Yes, if you get a coil with at least 3 Ohms, you can skip the resistor. IC14SB is one such coil.

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10-12-2012 06:34:02

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 Re: Electronic Ignition Question in reply to JMOR, 10-12-2012 06:15:17  

The silicon device that dumps the storage capacitor to initiate the spark can only handle so much current and heat is a consideration. Not really a big deal when you think about regular ignition points.......installing a current limiting resistance.

My MF manual says that regular mechanical ignition points are rated for 5 amps max which, when you do as Mr. JMOR said will put you right there....14.5v alternator/generator output at PTO rpm divided by 5 amperes is right at 3 ohms of series resistance required.


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