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1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
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Old May 22, 2026 | 08:09 PM
  #421  
Fleur de lis 82's Avatar
Fleur de lis 82
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So this one has got me stumped. Last Friday the engine ran just fine, if a little noisy with some rockers.

Pulled the valve cover to check said rockers & started and shut it off repeatedly, with no issues. Soon as I got the valve cover back on, it wont start for nothing. Swapped in multiple distributors, both factory & aftermarket. Multiple known good Duraspark boxes. Msd 6al box. Multiple known good coils. New wires.

No spark, period. Getting juice to the coil too.

What am I missing here?



And I did triple check the engine ground too.

 
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Old May 23, 2026 | 02:31 AM
  #422  
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Originally Posted by Fleur de lis 82
And I did triple check the engine ground too.
If the starter is cranking normally, then there is nothing wrong with your engine ground.

Originally Posted by Fleur de lis 82
Soon as I got the valve cover back on, it wont start for nothing.
What did you check on and around the valve cover? If the last thing you did was put on the cover, what wire(s) could you have dislodged that would keep it from generating a spark?
I know there are these "coincidental failures" but seems like this is something you bumped.

Originally Posted by Fleur de lis 82
Pulled the valve cover to check said rockers & started and shut it off repeatedly, with no issues.
Originally Posted by Fleur de lis 82
Swapped in multiple distributors, both factory & aftermarket. Multiple known good Duraspark boxes. Msd 6al box. Multiple known good coils. New wires.
Originally Posted by Fleur de lis 82
No spark, period. Getting juice to the coil too.
But are you getting juice to the ignition module? What about a trigger signal to the coil? This smacks of a wiring disorder.
Is the power getting to everything? And is it getting to everything with the key in the START position as well?
Did you check the Brown wire on the starter relay?

With all of these known-good components, disconnect any tachometer wires, radio noise suppression wires, and even the Brown "I" wire from the relay/solenoid to make sure they're not shorting out the ignition signal between the distributor, ICM and coil.

Paul

 
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Old Today | 04:21 PM
  #423  
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Since it's been asked for, here's the 83 Cj7 I'm working on now. Aside from the frame, it ain't all that bad for a late Cj. Got it running (since its basically an undersized 300 six & has a Duraspark ignition system), & it runs good ish. Not particularly sure about the transmission for some odd reason, or the axles! But I've got em at least.

Good walk around.

Start up, with a random single barrel carb, from a random Dodge 318.

Still in middle of sorting the frame out. Will hopefully be done with that mess soon. Because, Jeep things.



Because when I see folks complain about rust on a dent, I laugh in Jeep. They are frigging horrible about rust.


 
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Old Today | 04:34 PM
  #424  
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I though you was going to pull it completely off the trailer, and then at the 1/2 to 3/4 way point you stop and yank the trailer out from under it....classic!!! The engine start up was cool, but not as cool as the hanging from the cherry picker V8 start up you did a while back.

I have chained the rear bumper of a complete 2wd 79 F250 truck to a tree and then pulled the trailer out from under it before. Is that your spare frame, how in the world did you get it IN the shed?
 
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Old Today | 08:13 PM
  #425  
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Thought about just yanking the trailer out first. But then I'd probably of had to drag the jeep around to get a good position & that would've seriously jacked up what little driveway gravel that hasn't already washed down the hill. And that would make me sad.

Yeah that's the spare frame. As to how I got it in the shed...... much foul language was involved & a little four wheel furniture dolly.
 
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