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Vomiting Coil

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Old Jul 24, 2009 | 07:24 AM
  #1  
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Default Vomiting Coil

My coil likes to spit my wires at 4k+ rpms. I've tried all I can think of to fix it and nothing works. I've tried 3 different sets of plugs, 2 sets of wires, and 2 coils. I've even tried gluing the boot to the coil. Has this ever happened to anyone? It's really starting to **** me off.
 
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Old Jul 24, 2009 | 07:42 AM
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Your wires are ejected from the coil? Is there any residue from an electrical charge of some sort? Is it most often the top one?
 
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Old Jul 24, 2009 | 09:37 AM
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Thats strange. I've never heard of that.
 
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Old Jul 24, 2009 | 09:57 AM
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i also have NEVER heard of that... ever.. that is so weird
 
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Old Jul 24, 2009 | 10:05 AM
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Whoa, thats crazy.

Add me to the list of folks never hearing about this, and all my buddies and I rip pretty hard.
 
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Old Jul 24, 2009 | 10:05 AM
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That's a new one. Sounds real frustrating!

There's no electrical explanation for what you've described, this must be a mechanical issue. Given all of the parts you've swapped out I gotta believe that you have solid mechanical mating to the coil. The only thing that comes to mind is that engine vibration could be yanking the wires out. Do you have plenty of service loop (slack) in the plug wires leading to the coil?
 
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Old Jul 24, 2009 | 10:59 AM
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You've got aftermarket coils on there, dont ya?

I've had issues with them before, and its because the wires dont "snap" into place properly. Pull the coils and take a look down the hole. If you need to, take a mini screw driver, bend the tip over, and give a smidgeon more ooomph to the tang inside. If its a smooth bore coil, then all you can do is tweak the wire for a more solid resistance fit. Last resort is to silicone the wire in place.

If none of the above work, replace the coils.
 
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Old Jul 25, 2009 | 06:32 PM
  #8  
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Originally Posted by DGDyna
Your wires are ejected from the coil? Is there any residue from an electrical charge of some sort? Is it most often the top one?
So residue or evidence of arcing
Originally Posted by Ratbob
That's a new one. Sounds real frustrating!

There's no electrical explanation for what you've described, this must be a mechanical issue. Given all of the parts you've swapped out I gotta believe that you have solid mechanical mating to the coil. The only thing that comes to mind is that engine vibration could be yanking the wires out. Do you have plenty of service loop (slack) in the plug wires leading to the coil?
Plenty of slack
Originally Posted by kk6pg
You've got aftermarket coils on there, dont ya?

I've had issues with them before, and its because the wires dont "snap" into place properly. Pull the coils and take a look down the hole. If you need to, take a mini screw driver, bend the tip over, and give a smidgeon more ooomph to the tang inside. If its a smooth bore coil, then all you can do is tweak the wire for a more solid resistance fit. Last resort is to silicone the wire in place.

If none of the above work, replace the coils.
I'm gonna have try this next time I have a screwdriver and allen wrench. The silicone won't interfere with the connection?
 
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Old Jul 25, 2009 | 07:50 PM
  #9  
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Get the best friction fit you can, then shoot the silicone over the top of the connection. Then slide the boot over.

Its a trick we used in figure 8's way back when, before they let us use posilock caps. Sucks coming up to the intersection with 2 wires flapping in the breeze.
 
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