Broken Spark Plug Removal Question - Ford Mustang Forum
 
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post #1 of 6 (permalink) Old 06-08-2012 Thread Starter
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Broken Spark Plug Removal Question

Tonight I set about replacing the infamous 2-piece plugs in my car with the updated ones that aren't supposed to have the snapping problem. I got through 7/8 just fine, but the last one, of course, snaps. I bought the Lisle tool in case this happened, but it looks like the plug broke in the one way the tool is useless to fix. The center conductor sheared off about .5cm above the ground shield, so the lisle tool has no way to get down and dig in to the shield to pull it out. Short of removing the heads I see no way to get it out, but I had a thought. If I cranked the engine with the fuel pump relay removed and all the coil packs disconnected so there was nothing left to fire, might I be able to pop it out like a cork, or is this an extremely bad idea? Otherwise I'm left with having it towed up to the dealership and having to deal with their prices... Is that going to be my only option?


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post #2 of 6 (permalink) Old 06-08-2012
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Wow, sounds like it could get expensive. I would imagine extractors wouldnt be strong enough (the reverse drill bit type) and if they were, the porcelain might not hold up. For now, thats all I can think of.
When I changed mine I read a bunch of articles and people were reccomending to spray some sea foam into the plug recess. this seeps in and helps break up the grit and makes it slightly easier to break loose. You can try that. But let it soak for a while and periodically add more. Hopefully the extractors work. Good luck.

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post #3 of 6 (permalink) Old 06-08-2012 Thread Starter
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I used carb clean like is called out in the tsb and rocked them all back and forth to try to loosen them up. 7 came out just fine...but this last one looks like it is going to screw me. If the center conductor hadn't sheared off where it did the lisle tool would have worked fine, but as it is there's no way to get down to the ground shield with the extractor. I'm looking at the tsb now and doesn't look like even their tool has a solution for the situation I'm in; it seems like no matter what it assumes the center conductor comes out with the plug and all that is left is some combination of the ground shield and porcelain.

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post #4 of 6 (permalink) Old 06-09-2012
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I have used this one before at my brother in laws shop. It pushes the porcelain in enough to get the extractor piece in. Works very well. http://www.matcotools.com/catalog/pr...-PLUG-REMOVER/


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post #5 of 6 (permalink) Old 06-09-2012
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Get down into the well with pliers or hemostats and snap the center conductor pin out. I had two of mine break this way. I used a set of micro nozzles on my shop vac to remove any stray porcelain before and during the use of the Lisle tool.

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post #6 of 6 (permalink) Old 06-11-2012 Thread Starter
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Quote:
Originally Posted by green97probe View Post
Get down into the well with pliers or hemostats and snap the center conductor pin out. I had two of mine break this way. I used a set of micro nozzles on my shop vac to remove any stray porcelain before and during the use of the Lisle tool.
Yep, that's what I ended up doing. I was so worried I would have to bring it up to the stealership, but I finally was able to find a set of pliers slender enough to fit down there and pull out the center pin. After that the lisle tool worked like a champ!

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