[chatranger]

Well I took it to a mechanic and he told me that the rocker and the valve is a little loose and that I need to replace it. But can they be adjusted ? I asked him that and he said that no, that it sounds like it needs to be replace and it will cost me $450.

What do you think?
If the valve can be adjusted and the rocker replace can I do it myself. I have some experience with cars but Inever opened a motor. But I learn fast and not afraid to try it.