No I'm doing it my self I figured the most that can happen is I get the chance to learn how to rebuild an engine so the more you know right. The only thing I don't understand is the back balancer I have seen some ppl line up 2 different marks and some just one and then the person who did the timing belt last just hammered the key way in bc they must not have known that the curved part went in first so I can't get it out so new balancer going to have to just use the old key