I know it looks like the damper is on wrong, but I'm not sure this is possible since its keyed onto the shaft and the (6) bolts that hold it on can only be put on one way. One of the (6) holes is spaced differently from the others.
I'm thinking that perhaps the cam sprockets are on wrong since they have (2) slots for the woodruff key that are 180 deg apart?
PS. Of course, don't know why they would be 180 deg off since I don't think anybody has touched this before me.