ok, well to make a long story short, a friend of mine was working on his 95 civic (sohc vtec d16z6), and broke a spark plug off in the head. I know how to fix it, but i need to remove this "tower" that surrounds the spark plug first, and I can't figure out how to remove it. I have some pics and the arrows are pointing to what i need to remove. I need to know does the head have to come off? or does this thing unscrew? or does it just tap in/out? any help will be greatly appreciated. thanks in advance.

Pics:

 

i'd pull the head off

 

off topic but that is the dirtiest head I have ever seen.

 

this can be closed. i removed the head and fixed it.

 

thats a dirty head....goodluck with the fix