Is this what they mean by a blown motor?
 

I hope I'm not out of line posting here but I thought you guys would enjoy this.Open this vid to full screen.Enjoy.

https://www.youtube.com/watch?v=RUquK_6WIjk

Blown?!? I'd say exploded!!

Catastrophic Failure !!!

Well looks like one piston and that steel crank survived still hooked to the dyno

Awesome explosion! funny how you watch that video and then I got sucked in to watching 1/2 hour of "tree cutting" videos on Youtube.

I like how the name on the dyno is "DYNOmite".

Now that's what I call detonation.

Hope it was still under warranty.

Isn't detonation the way a diesel works?;)

So in this scenario who pays for damage, not just the obvious (to the engine) but damage to the dyno equipment and room? Shop's insurance, engine owner's insurance? What if the shop built the engine and a component they installed failed?