Re: key cylinder won't turn
For starters, graphite is bad news, regardless of what you may think or have heard from someone else. Give the ignitions a flush with some carb cleaner, follow up with some WD40 or penetrating fluid. Work your key in and out of the lock about 15-20 times rapidly, try to turn. if not shoot some more WD40 and work the key in and out again and try to turn the key. It may also help to turn the key over in case one side of the key has more accurate cuts.
I'm assuming you made sure the steering wasn't in a bind. If not, try turning the steering wheel hard to the left, while holding the steering wheel hard, try the key. If it doesn't work try turning the other way doing the same thing. (Try doing this first, before doing the flush and oil)
Do not attempt to drill the keyhole out or you may find yourself in more trouble, The Fords have a hard plate, much like a safe would have.