I had all the cam and crankshaft marks lined up during the install of a timing belt when the driver's side cam moved several teeth (2 inches) counter-clockwise.  The belt was tighter than I was expecting and I must have pushed or pulled a bit too much.  Anyway, it moved quick, like it was spring loaded.  I'm not sure if the next thing I did was smart or not. I put a wrench on the cam bolt and attempted to move it back so the marks lined up. I was almost at the mark when the cam then jumped 2 inches the other way (clockwise). I put a wrench back on it and was able to get the marks to line up again. Did I just screw up by moving the cam independently of the crankshaft and other cam?  Did moving it in both clockwise and counter-clockwise cause some damage?  Not sure if I'm in a jam or not.  

Nope. You’re all good. 

One cam is operating valves when you line up the timing belt. The pistons are half way up the cylinders so valves etc can’t hit. 

Cheers 

Bennie

Thank you, sir.  I appreciate it.  

Always a good idea to turn it through by hand, through all four TDC strokes.

But as he said you are good.  Glad you got it.