": P" wrote: why are you worrying about it if your mechanic broke the sparkplug. let him figure it out and deal with it. ^^^^^^^^^^^^^^^^^^ It's not really the mechanic's fault, so I think he would be justified in charging to remove the head and take the plug out at the bench, using an easy-out, a drill, or whatever means he has available.
I assume you are trying to reduce the labor. I would go ahead and use an Easy-out, and then, before running the engine, turn it over with the starter for a minute or so, to pump air in and out the spark-plug hole. This will most likely blow out any small stuff that may have fallen in. In addition, you could position the piston at bottom-dead-center, and then shove a vacuum hose in and wiggle it around a lot. You could also dump in some oil, and then turn the engine by hand, pumping the oil out the spark-plug hole, which will also help flush out things that could have fallen in.
If any really little stuff remains, I would expect it to be blown out the exhaust valve when the engine is started, causing no harm.
If the threads in the spark-plug hole are damaged in the process of removing the plug, it's very easy to Helicoil it. A Helicoil is actually stronger than cast iron or aluminum, so the results are better than new.
Slightly OT: I once had a mechanic Helicoil the spark plug hole in the number 3 cylinder of my VW, using a mirror. There was someone with real mechanics hands.