Nope, the belt will still be pretty snug. Just peel the belt from the cam sprocket up top. Try to hold some tension on the belt to keep it on the crank sprocket below. Rotate the cam sprocket in the direction to get it to TDC, the pull the belt over the cam sprocket. Tension the belt like in the video, then spin the engine by hand a few revolutions, then recheck the timing marks. Repeat until you are sure the timing is properly set.

 

Ok I just pull the whole rocker assembly off because I wanna remove the head since I ordered a whole gasket kit and there was a lot of black chunky/crispy stuff all over the exhaust valve springs which is a little concerning and imma redo the valve seals and possibly surface the head