Had the harmonic balancer replaced on a 2.7L 2006 Tucson Limited, along with the drive belt and tensioner. Three days later wife drove car to work and the engine never started again. Two shops dropped the oil pan and said there were metal shaving everywhere and a new engine is needed. Is there any way replacing these items could have led to the engine fail?

 

saw 2 videos on quick removal of the harmonic balancer they drilled in to pulley and as i looked on in horror thought about all those little metal friends runing in to the oil here a youtube link from one of them