English to Italian Tech/Engineering Mechanics / Mech Engineering Engines

Mi trovo a dover tradurre un testo che, secondo me, è una pessima traduzione da qualche lingua in inglese.
La frase è la seguente:
"The main bearing of the crank axle were ground. The both bearings have turned in the crankcase, the bearing cover showed traces of overheating.
Also for the rest of main bearing had already abnormal glance places and according to those at the bearing-shells, the main bearing pivots have showed sprayform sample".

Chiunque abbia una minima idea di cosa si intenda qui, sarebbe così gentile da illuminarmi??
Grazie infinite!!