Hi,
I dropped my son off at school this a.m. and his teacher was upset. He has a '93 Legacy. He had the timing belt changed in January and now the crankshaft pulley key "broke". He was quoted $500 for repair by the shop that did the original timing belt change. I suspect that the shop failed to adequately tighten the crankshaft bolt back in January. So my question is how should he proceed? Is it customary for a shop to warrant their work? Is it possible the key broke just coincidentally?