My 2006 Elantra is due for a timing belt change, but I have not been able to find the time to do it. To assauge my anxiety over a possible belt failure, I have been pulling the upper timing belt cover every few hundred miles. Now I know that this does not reveal the condition of the cogs which are the most likely thing to fail, but it does make me feel better that the belt still looks good. Every time I look at the belt it is at a different position on the camshaft sprocket. Sometimes it is almost all the way back towards the engine, and other times it is as far away from the engine as it can be. At no time has any part of the belt been beyond the edge of the sprocket. Is it normal for the belt to move back and forth on the camshaft sprocket?