Quote Originally Posted by Salto_Jorge View Post
...This makes one wonder if the belt is short ....
You can easily check that by simply placing one belt on top of the other. Timing belts should never change over time, so the new belt should be a perfect match to the old one. Assuming they are identical, I'm guessing there is a 'trick' that you haven't found yet to get that tensioner moved out of the way enough in order to let the belt slip on.