good afternoon. I have a 2.2L laguna 2005 and some time ago made a noise on the alternator belt. A few days later I ran out of electronics and a warning from the alternator. I checked and noticed that the belt was badly damaged and I noticed that the crankshaft was broken. So I changed the belt and the crankshaft. But now the belt is small, I checked that the belt is the same and the crankshaft too. Even the old belt was small. Someone has any idea what's wrong.