hey guys i could really use some help....my cousin has a 2004 sonata 2.4 , he took it to a shop and they told him he needed a ckp crank sensor so i followed all the proper procedure to replace it ...but when i took off his valve cover i noticed he had about a quarter inch gap between the cam and the rockers ...upon futher inspection ..i noticed many of the rockers were loose enough to fall off the stud ....can these be replaced ...if so how do u get them back on ...? do they pop back on ? please help i dont want to have to take off the entire head help guys please !

 

Help is a great virtue.Any man did not want help,when he foll in a danger then he request help.