What do you guys think what have caused this? This is from project engine which had cambelt jump. Even without cam problem i think this engine would have not lasted long anymore. Crank seems usable lucky me, cant feel anything with nail so polish should be enough if its not bent.
Found out there was no seal in oil strainer o_0 Could it be it has been sucking too much air and then low oil pressure in main bearings + there has been some FM for sure also.