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Blown Spark Plug

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Old Aug 2, 2022 | 07:24 PM
  #11  
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Originally Posted by Jimboy
Swanky1998,,,Any progress to report?
My apologies for the late response... Family emergency stopped the project however, after reading the comments I have in fact confirmed the threads may still be in there because the magnet stuck.. Any ideas on how to pull them out lol...
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Old Aug 2, 2022 | 08:42 PM
  #12  
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Would an EZ out work? If you could find one long enough, which is doubtful.

Last edited by JCR 56; Aug 2, 2022 at 08:44 PM.
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Old Aug 3, 2022 | 01:09 PM
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The "elephant in the room", is, What caused the plug to blow out, in the first place? Was it cross threaded, not torqued correctly, etc. For a Motorcraft plug, to just suddenly "blow out of the head", must be a very rare occurrence. There was a cause, if it can be determined maybe it can be avoided in the future. How do the other plugs look?
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Old Aug 3, 2022 | 01:18 PM
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If the threads are left in but the hex portion blew out that means the metal split and the hex portion blew out with the porcelain. Very strange, seems unlikely.

I'd clean things up very well and make sure you know what you're looking at.

Here's an old similar thread, with a better picture.

https://www.f150forum.com/f4/spark-p...8/#post4832793
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Old Aug 3, 2022 | 01:30 PM
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Here's a thought - remove another spark plug and measure down to the spark plug seat. Compare that measurement to how far down it is to whatever is left in that greasy hole you showed above. The difference will tell you how much of the old plug is left.

Might be that the hex head is still intact and you can just pull it out with a spark plug socket.

Or...just stick a spark plug socket down there and see if it grabs.
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Old Aug 3, 2022 | 01:35 PM
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Spark plugs to look at just for imagining...

https://www.rockauto.com/en/catalog/...park+plug,7212
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Old Aug 3, 2022 | 02:06 PM
  #17  
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Question to experienced Posts/Responders on F150Forum.
Assuming that the sparkplug on this 4.6L 2V engine broke leaving the threaded portion.
Does anyone know if the Lisle tool will work to extract the threaded portion that remains in the head?
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Old Aug 3, 2022 | 04:50 PM
  #18  
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Originally Posted by pawprint
The "elephant in the room", is, What caused the plug to blow out, in the first place? Was it cross threaded, not torqued correctly, etc. For a Motorcraft plug, to just suddenly "blow out of the head", must be a very rare occurrence. There was a cause, if it can be determined maybe it can be avoided in the future. How do the other plugs look?
It was common on 5.4L motors in the early 2000s
Spark Plugs Eject From Aluminum Heads of Triton Engine (fordproblems.com)
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Old Aug 3, 2022 | 05:00 PM
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If he has a 2010 4.6 he should have plenty of threads. That's why I posted that Rockauto link. Threads galore on those plugs, and they're not the extended tip type.

Maybe it's a typo and he actually has a 2001. Why would he buy the kit he bought? But he said 2010 twice. Maybe the 2010 2V is different than the early 2V's. Something odd here, the story pieces are not working together.

Anyway, pulling a different plug will answer many questions.


Here's the Cal-Van 38900 page that he said he bought and some text -

https://cal-vantools.com/products/tw...ad-repair-kit/

"Designed to aid in repairing Ford engines modular cylinders heads (1996-2003). Average repair time as short as 25 minutes."
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Old Aug 3, 2022 | 05:24 PM
  #20  
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Do not confuse his issue with the too common "blown spark plug" that you're familiar with, mostly from the early Triton engines. All evidence points to a failure of the plug itself, not the plug's seating threads in the head.


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