So first time posting on here, but I have a problem. So on my 04 Mini Cooper S I had a coolant leak. So I changed the water pump, water pump flange, o ring to crankshaft position sensor, o ring to oil dipstick tube, and also changed the oil in the supercharger, since I had it out. So I put everything back on and it went smooth until I went to put the belt on and when I release the tension on the belt tensioner it's not tightening the belt there's a whole lot of play in the belt, enough that I can remove it completely from the ac and alternator pulleys. So the question is what happened? Is there something I'm missing, also I made sure the hole was clear in the tensioner, the one that holds it in place. There were no issues before I took the supercharger off.