Well I choose to disagree my friend, I did this to lots of engines and there all running well, You can remove a berring,but you have to know how. I never had a problem. I have the right tools to do so. I have a press and a precision punch tool that will slowly remove the berring without damage. If you have an engine and the only thing that is wrong is a bad main berring,you have 2 choices, Either pull the berring and replace it,or send it out for repair,which will cost as much as a new motor. Anyway,this is only my opinion.