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Broken spark plug removal HELP!

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Author 
ange

02-11-2001 16:28:12




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I have gone and done it! I was trying to remove the spark plugs in my super C when the porceline broke. OK no problem right? Wrong! I then took abreaker bar and tried to remove the threaded part. Then it snapped off. Im trying an easy out but I dont think it will work. Any ideas or other tools I can try before I have to remove the head? thanks ange




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Bruce Judd

05-28-2006 08:47:01




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 Re: broken spark plug removal HELP! in reply to ange, 02-11-2001 16:28:12  
I have a 94 s10 blazer with a 4.3 eng.I recently joined the ranks of the broken spark plug brigade.I've read all the comments on removal,and most are quite good.This is what worked for me.If you're short on cash like me,take a large scew driver and grind the end to fit in the broken part of the plug.Grind the other end into a hex then you can get a socket on it.After heating the plug (not red hot)tap it in with a hammer and you can turn it out with a rachet.Also if you break the tip of the screw driver off it's easier to get out.Please note this worked on a cast iron head,I don't know how it will work on aluminum.

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bangel

04-16-2005 10:21:37




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 Re: broken spark plug removal HELP! in reply to ange, 02-11-2001 16:28:12  
Ok sounds good. I have tried the easy out method. But what happens when one breaks the easy out. Personally, I have never seen it happen but. I went and broke the easy out now its back to drilling 4 hours later and 10 good drill bits and still cannot get a new easy out in. I may personally go with the plastic explosive.



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Paul

02-13-2001 07:50:58




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 Re: broken spark plug removal HELP! in reply to ange, 02-11-2001 16:28:12  
I broke a pipe fitting off in my log splitter cylinder. My shade tree mechanic buddy suggested picking an allen wrench that was larger than the pipe inside diameter, and driving it into the broken fitting. I tried it and it worked great! It didn't expand the fitting like the easyout I had been using. I stuffed a rag in the opening first in hopes of catching any debris from the inside of the fitting, and then flushed it out with diesel fuel afterward. I hope I got all the little pieces of metal. . . I don't know if the steel in a sparkplug is similar to a pipe fitting and you might not have room to swing a hammer.

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RayP

02-12-2001 18:42:39




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 Re: broken spark plug removal HELP! in reply to ange, 02-11-2001 16:28:12  
Well, I can tell you what NOT to do: Was changing plugs in daughter's Ford Probe, and one shell had a bit of rust -when I slid a wrench on it, the shell broke between the hex head and the threads. I was able to break away the ceramic with a screwdriver blade and a hammer. (Don't know how much broken ceramic I got into the cylinder, - Did try to vacuum it out with a small hose on a shop vac.) Then I tried a tapered easy-out. Problem was, that every time I tried to turn out the plug remains, it would bind tighter. Finally got a straight easy-out, and that gripped without causing the plug shell to bind. By that time I had removed the radiator, to get enough clearance to get at the plug. The shell of that plug was so soft, it would expand under pressure. Vacuumed the inside of the cylinder as best I could before putting in the new plug, and yes, I used anti-sieze!

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Greg D.

02-11-2001 17:05:37




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 Re: broken spark plug removal HELP! in reply to ange, 02-11-2001 16:28:12  
If all else fails as you have said, here`s my $.02 With the porcelain out of the cemter, you could put a bolt into the hole of what is left of the plug and weld it to what is left in the head. Be very careful with gas and sparks. The other option, I would consider, take a hacksaw blade and use as a bayonet type saw and cut through the remainder of the plug. Don`t get into the threads to damage them. Cut in two differet places across from one another. That should relieve the threads from the head and allow you to tun it out. I assume you have used a good penetrting oil on what is left of the plug? Thouroughly clean out the cylinder from any cuttins or dirt that may get into the head. Chase the threads and never sieze a new plug into place. Good Luck!!!!!

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MartinCaldwell

02-12-2001 10:48:06




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 Re: Re: broken spark plug removal HELP! in reply to Greg D., 02-11-2001 17:05:37  
I have brazed in a 1/2 cap screw and with the heat of brazing plug came right out.



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the tractor vet

02-11-2001 16:50:49




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 Re: broken spark plug removal HELP! in reply to ange, 02-11-2001 16:28:12  
Do you have a torch even a good propane will do heat the threads cherry red and let it cool it will come wright out.



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ange

02-11-2001 17:07:52




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 Re: Re: broken spark plug removal HELP! in reply to the tractor vet, 02-11-2001 16:50:49  
Thanks for the info. I dont have torch but I will try my little propane torch. Do I have to use an easy out when it cools or will it come out with a pair of needle pliers. ange



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the tractor vet

02-11-2001 18:01:21




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 Re: Re: Re: broken spark plug removal HELP! in reply to ange, 02-11-2001 17:07:52  
More the likley you will need the ezout, but you have to get hot then let it cool it will shrink and will not hert the threads.



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Greg C.

02-12-2001 09:00:21




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 Re: Re: Re: Re: broken spark plug removal HELP! in reply to the tractor vet , 02-11-2001 18:01:21  
The ez-out method works great. I used one to take a broken plug out of a 302 ford. I heated it up and used penetrating oil and it came right out. Good luck!



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Helpful

02-12-2001 12:15:32




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 Re: Re: Re: Re: Re: broken spark plug removal HELP! in reply to Greg C., 02-12-2001 09:00:21  
I would take about 70 grams of plastic explosive and carefully mold it around the plug. Then I would make sure that I was at piece with my God and get far away. Then use the igniter and KABOOM! Then either the plug is out or you don't have an engine head to worry about.



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