Mallory E-spark electronic conversion kit
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Senior User
Joined: Mar 2004
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From: Rocky Ford, Colorado
Mallory E-spark electronic conversion kit
Howdy everyone... anyone in here running a mallory e-spark conversion kit to get rid of their points? If so how did you wire it up?
There's about 3 or 4 different ways to wire it according to the instructions based on whether the system is equipped with an external ballast resistor or a loom resistance wire.
It says in the instructions most motorcraft points systems had a ballast resistor or loom resistance wire from the factory. How would I check this to make sure. (I know just about nothing about resistors... do they drop the voltage, the amperage, or both?)
And in one diagram they show running the coil + off of the resisted power and running a full power 12V to the module, and in another it shows the coil and the module both getting the resisted power....
Sooooo confusing!
There's about 3 or 4 different ways to wire it according to the instructions based on whether the system is equipped with an external ballast resistor or a loom resistance wire.
It says in the instructions most motorcraft points systems had a ballast resistor or loom resistance wire from the factory. How would I check this to make sure. (I know just about nothing about resistors... do they drop the voltage, the amperage, or both?)
And in one diagram they show running the coil + off of the resisted power and running a full power 12V to the module, and in another it shows the coil and the module both getting the resisted power....
Sooooo confusing!
Senior User
Joined: Nov 2003
Posts: 318
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From: Cantonment, Fl
If you just want to get rid of the points why not go with a Duraspark III sytem off a later truck. They work well, give very little trouble and the parts are relatively inexpensive. You can probably get everything you need from the local salvage yard.
Fleet Mechanic
Joined: Aug 2007
Posts: 1,828
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From: Piney Woods of East Texas
Yes the wiring has a resister loom wire. To confirm, start the engine and measure the voltage to the coil, should be in the 9-6vdc range. It has a tendency to start high and drop down as it heats up. If it does not it will have full battery voltage.
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Senior User
Joined: Mar 2004
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From: Rocky Ford, Colorado
60F100, That would also work just fine, but I just don't have the time to make it to the junkyards during their business hours, plus I would like to try a couple different conversion kits (this one, and the petronix one) to decide which one I like the best, because we need to switch over about 7 trucks from points... It might be hard to find that many duraspark systems in the junkyard!
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Joined: May 2004
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From: london, ontario
watch the pertronix. i had it on my 300-6 and loved it. on my 302 i can't get one to work. have gone through 3 so far. now i have to send it off to pertronix direct to swap it out. it did wonders on my other truck, but i've heard alot of bad things about the v8 kits.
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