I didn't realize I should have locked the cam sprockets in place, and when I removed the timing belt, the top driver's side sprocket unloaded itself. I didn't see what direction it turned, but the double hashes are now pointed in the roughly 3 o'clock direction (having been at 6 o'clock and aligned with the doubles on the lower sprocket with the belt on.)
When I attempt to turn it clockwise into place, I get to about 4 o'clock and I hear a tap and the sprocket doesn't want to turn further. It doesn't feel like pressure resistance. It feels like it's hitting something (which is also why I mention the tapping sound.) I'm reluctant to put much force behind moving it, so I'm a little stuck now. The lower sprocket didn't move, nor did the passenger side sprockets.
I noticed I can move the sprocket without resistance in the counter clockwise direction until the double notches reach about noon.
The crank sprocket has its key notch at 6 o'clock.
I'm a little lost. What's my next step?