I have a DOHC ZC and I was just inspecting my timing belt because I am thinkin about goin turbo. Well, I looked at it and on the left side the belt is being worn down pretty badly. It is about 1/8th of an inch wide and it goes around the complete built. Has anyone ever seen this before. Is it from my timing belt cover or is something down in the timing cover are rubbing it. I am goin to put a new timing belt on and I need to identify the problem.