Webster's Dictionary
smith·er·eens noun pl \ˌsmi-thə-ˈrēnz\
Definition of SMITHEREENS
: fragments, bits <the engine was blown to smithereens by the explosion>
Origin of SMITHEREENS
perhaps from Irish smidiríní
First Known Use: 1829
Yup, it's shot.
The rod, cam, governor, and crank are all bad. The crank is all galled. Yes. there was brand new fresh oil in it. The lower end of the rod disintegrated.