2002 1.9 the large bearing on the timing belt came apart while drive about 20 mph, engine died.pulled T belt cover saw belt was loose, removed lower cover found ball bearings in the bottom. pulled cam shaft inspected lifters no sign of damage, removed lifters , no sign of damage to valve stems, removing cylinder head Friday after work. I suspect slightly bent valves but with no head damage, T belt did not break but timing jumped by est of 90 deg. Anyone witness this before ? I have the 100 k belt kit in stock but I want to make sure I'm not taking this apart again this winter. working for German car dealers that last 11 years I know we replace everything just to prevent comebacks, I'm going to only replace what is required. anyone had this happen to them ?