hey guys, just fitted a new cvh36 kit to head off the car (rs turbo) but after fitting it all I went to put pulley on and it doesnt fit? It slides over but there is no notch on cam to lock it in place. Instead where it should stick out it is indented inside the cam? Anyone had this problem before as Ive looked into other pulleys but they are all same as one I have. Have contacted burton so hopefully someone can let me know. Cheers.