this is my first tim replacing a timing belt. when i removed covers I noticed gears were not aligned. Front cam @ 5 marker , rear 180 degrees off , crank, 180 degrees off. Unfortunately, I removed timing belt which i now realize was not a good thing. I also manually moved rear gear CW 15 degrees in an attempt to align markers. I now realize that was not a good thing. What is the chances of me damaging the valves? What can I do to align all 3 to TDC?