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Issues with spark on my Dura spark


Danni84

Danni84

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Hey guys, I'm back. I cannot get spark on my duraspark conversion that I have done on my 84 ranger with the 2.8. it does not make sense to me, because I have started it before, and now I have no spark. The coil is good, and I have power to the coil when key on, it is hot. The only time i get spark it after the key returns from the start position back to the run position. I get one spark, and man does it wake you up. what else could be hooked up wrong? are there any other systems hat affect the spark? :icon_confused:
 


adsm08

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Your coil is not getting triggered while cranking, it is staying grounded all the time. When the key flips back to run it breaks one side of the primary circuit and fires the coil.

Either the wiring is wrong or the ignition module is bad.
 
Danni84

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is there any way of testing the ignition module? or do I just need to guess and check? I also noticed the coil gets hot in a hurry. i'm starting to think i should just blow this truck in place! :dunno:
 
Danni84

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Got a new ignition module. that did not fix the problem. What really throws me is I fired it up before with the new duraspark in it. than once I was able to borrow a timing gun to time it and do my break in on the new engine I was getting spark only sometimes. So I thought my ignition switch was bad. When I looked at it everything was loose. I then got a new one and replaced it. after that when i went to key on I had a direct short and fried the fusible link wire that runs from the starter solenoid in front of the radiator and into the fire wall. This is the line that supplies the power to the whole system. I went to a junkyard and got one of thoughs and replaced the bad one with it. than I checked every fuse and the headlights. None are blown and the headlights still work so I have power flowing through the line.
my coil voltage drops when I crank it and I still only have spark after the key leaves the start position and returns to run. I have been going over every wire and connection to see if I can find a short, but so far the only thing I have seen is the ground on the battery is pretty worn out and corroded. I am planning or replacing that ASAP, but have little hope that it will change the current situation.
 
Danni84

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well, been a while. got it all figured out. Was a loose wire off the distributor, and and coil wire adapter that i pulled off a donor truck had a lot or corrosion on it. Than as it turns out I had mistakenly removed the electronic regulator. I had thought that it was the ICM, but that is on the distributor. Ooops. not to complete the swap I need the carb. Anybody know where i can get a Motor craft 2150 two barrel? the only ones I can find are crazy expensive.
 
superds

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What do you consider crazy expensive? You can find them on rockauto.com for about $200 for a reman.
 

Andy D

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See any old Grand wagoneers around? Most of them had 360 AMC v8s that used the 2150. You would need to re-jet probably for a 2.8
 
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