Nissan Repair: timing, retension, timing belt

Question
while I was changing my water pump I believe that I might have moved my top right sprocket when I was loosing the tension pully how do I get it back to where it needs to be?

Answer
Ted,

Rotate the crank to top dead center and remove the inspection points at the top of the cam covers and check to see if things are off.  If they are you will need to take the cover off and all the things in front of the cover to realign the timing belt.  You will have to loosen the tensioner and reset the belt on the gears and retension and put everything back on.  No easy way to do this if things are off.