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Ford Tractors Discussion Board

Re: To RESIST- Or Not To Resist? Coil


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Posted by mrlewp87 on April 07, 2014 at 19:38:10 from (98.18.155.135):

In Reply to: To RESIST- Or Not To Resist? Coil posted by mrlewp87 on April 03, 2014 at 07:21:27:

Update; I cant say for certain that the old coil was shot. A good bet, since finding the ignition key on. But I"ve redone the simple checks and measurements, and it all seems to fall in line.
1)Voltage at coil"sPlus terminal; 12V+
depending on the current charge state of the
battery. (not that I"m doing excessive crank-
ing, but I"ll keep recharging< I"m measuring the max. volts battery is capable
of)
2)Internal resistance of coil; about 3.2 (and
yes, I figured in the small value displayed
when shorting the DMM leads)
3)Current flow thru coil/dis-connected from
distributor, key on; 3.4 amps* (I read in this
forum that 4 amps was the max. for a 12V coil.

??**If there was a problem with the points, or plugs- would the engine run fine for a while, then quit?
??**How do the these things add up?; a 12V con-
version kit is sold with a 12V coil, but most of the discussions are pointing to around 6 volts across the points, am I right? So, add a resistor!!? The coil needs a min. of 10V to operate, true? What the coil "sees"(volts) is what the points are gonna get, yes? I don"t know anymore. I think I'm movin' on to a possible fuel flow issue. I"ll start a new thread.
((what is causing some words to be duplicated? In this forum and one previous I posted to. The word "bet", 2nd sentence of this post. It's just stupid!!))


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