Need some advice, spark plug broke off in head
 

Not my engine but a friends, The plug broke off flush with the head when trying to remove it. I was able to pullout the cremic/electrode center so whats left is the threaded part of the plug. I soaked the hell of it and let it sit for most of the day. Using an #5 easy out, I managed to snap off a 3/8 extention after using a 4' cheater bar. That sucker didn't even budge. I soaked it again with liquid wrench and I'm planning on leaving it sit over night and try it again in the morning. What I'm afraid of is breaking off the easy out in whats left of the plug.

Anbody ever had sucess with what I attempting to do? Any tips?
I won't be home till very late tonight, I'll check the BBS when I get back home. Thanks!

John,

Try tightening it just a bit then loosening it with an easy out. Also would try heating the surrounding area around the spark plug area, but not the plug itself.

You do not want to break the easy out... its not a good day if that happens.

Joe

Yes, you could tighten, but not with an easy out. You need a reverse easy out to go back and forth on the threads. Such an animal is made, however I have not seen it at the normal FLAPS.

Try something other than Liquid Wrench. Zep makes a good penetrent (sp?). Zep is sold at Home Depot.

Thanks for the replies, I'll report back.

Lately I have been very impressed with results that can be obtained with heat cycling with a propane torch. Heat cycle the whole mess a few times to help break up any corrosion. Then heat it one more time but heat the head, not the plug, and try turning the easy out.

If it's an aluminum head, then propane will have a hard time getting it hot. Get that easy out out of there. The only kind I would use would be one of those blunt, more square types. The kind without the cutting flutes.

Perhaps you can use a dowel or something. Get it real hot if you can.

you need the kind of heat that only comes from a welding torch , I don't thing the blow torch will reach the temperatures you need .