I removed the PCV valve no problem, with just a standard wrench. Lots of patience, but got it off. Then I thought, how the heck was I supposed to get the hose back on without removing anything else?
I have small hands, so I ended up taking off the accessories belt, and swinging the alternator up, and reaching in from the front. Oh what fun.
I loosened the idler pully too much and it came off, and when I put it back on, I put the little piece behind the lock nut backwards, causing the pully to seize while the belt was moving. That was not good.
Hopefully, everything'll be OK...
VK