duraspark help

[bagdranger]

aight like its says im goin to be doin the duraspark conversion here soon and i need to know whats the difference between the 2 plug system and the 3 plug and can i use the 3 plug wiring harness on a 2 plug. ive got a buddy with the 3 plug on his fairmont which hes puttin a 460 in and dosent need the wiring harness and i need to know if i can use his wiring for my truck. any help would be very appriciated. oh my truck is an 85 with the 2.8:headbang:

[BobR]

duraspark, never got mine right. replaced it with breakerpoints after burning out 4 controll boxes in about a year.



Bob

[85_Ranger4x4]

I believe the tech library says you can still use them, just that the one with the blue grommet is prefered.

My dad went thru a handfull of parts store brand boxes in a couple months when he first got his F-350, eventually he broke down and got a regular Ford one, it has been in the truck for at least 15 years.

[truckman]

if you'er not sure if u can use the box or not do what i did which was use a mid 70's gm 4 pin HEI modual as for my ignition only 4 wires.

[Forcus]

if you'er not sure if u can use the box or not do what i did which was use a mid 70's gm 4 pin HEI modual as for my ignition only 4 wires.

Do you have any more pics or information? This page (http://www.megamanual.com/ms2/GM_7pinHEI.htm) shows the different pin modules. I am not very familiar with them.

[budro]

The reason for burning up the Electronic ignition boxes is because you are using the factory coil. You need to get a coil for a duraspark setup. I ran into the same thing. Especially if you leave your key turned just to on for a while. Box gets hot enough to fry an egg. Soon as I switched to a regular coil problem has gone away. Its been 4 years and running. I would rewrite the directions I posted years ago but never had the rights to so. Maybe someone else can add to the Duraspark writeup I did years ago.

[martin]

Ive been using a gm four pin module on my b2 for the last five years. only four wires and it's hei.

[almostclueless]

I've used generic duraspark modules in my vehicles for years. I have no idea what you guys are doing wrong.