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85 F-150 - Where Does the Coil Go?


Six

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Alright, so this question is not as stupid as it sounds. I bought the truck and went to do a tune up when I realized that some masochist had swapped out the original ignition system for something older. Something with points... why dear (insert preferred divine entity) would you do that?

Based on the fact that the clamping screw was bent to clear the fuel pump and the bracket itself was fastened with a large wood screw, I presume that the location where it was mounted to the block is not the factory location. Probably I will need to find or fabricate a new bracket, but if anybody can send a picture or provide a reasonable description I would appreciate it.

Engine is the 300 six cyl.
 


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franklin2

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The reason the ignition was swapped is the same reason we swap out the system on the old 2.8 v6. Ford used a computer controlled system with the ignition and the carb. When that system breaks, it's very difficult to figure out and get parts for. So it probably has been converted to a older type distributor with a vacuum advance. This is good for you. You may have some things to straighten out though.

If you have the distributor with no vacuum line and the module mounted to the distributor, you still have the original TFI computer controlled ignition. If you have a older duraspark II distributor with a vacuum advance, someone has been converting. Or you can also buy a aftermarket HEI distributor.
 

Six

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I bought a Duraspark II (which is what it was originally), along with the control module and a harness to hook up the right coil. So far as I can tell, there is no computer control involved. Everything will hook up nicely, no loose wires or extra parts or anything. I just am not sure where the coil is supposed to be. There is a picture that came with the coil harness that looks like it sits on the intake manifold, but that picture also looks like a V8.

The distributor that I pulled out looks maybe late 60's vintage based on stuff that I've had in the past. My guess is whoever did it either pulled it out of something in their yard or just happened to have it in the garage
 

RonD

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On the I6(4.9l) the coil is mounted sideways, on the block/head just above fuel pump and distributor, kind of between them, and just below #2 and #3 spark plugs

Google: 1985 ford f-150 i6 coil mounting

view 1980-86 F series ignition coil video, good view right off the bat
 

Six

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Thanks Ron. That's pretty much where it was, but it was mounted vertically. Guess I'll figure out a bracket.
 


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