I figured it was time to do the spark plugs but before starting I noticed online that people had problems with the oem plugs breaking off in the head. The advice I found was to use penetrating oil, let it soak, loosen it, let it soak more, and then take the plugs out. I was careful to do that and everything went fine except for one plug... it broke anyway.
So now I have part of a spark plug broken off inside the head. The electrode came out of the insulator so basically you can see the insulator and a hole down the center of it.
Is there any way to solve this problem WITHOUT removing the head?
This really sucks because I did what I could to prevent this and it happened anyway. Please help!