No no I’m just saying if the bolt was from something g unrelated to what they did ! If its from a t cover , tensioner etc its on them . But from something else it’s hard to say its there fault . Also 10 deg timing off is not 3 teeth on a t belt . 3 feather would be more and most deff a piston a to valve hit. I can’t sit here and say its not there fault or say it is its a shit situation