My cam belt failed after 64000 mis. (I thought that odd) and the dealer's repair included new head, seals, valves, - everything on top, but nothing was done to the bottom. I thought that you couldn't replace the top without redoing the bottom 1/2 or at least checking to be sure the bottom 1/2 would be alright. I would like to keep this car for at least another 60,000 mi's and am uneasy about the prospects. Any help is greatly appreciated.