4 runner 94 3.0

I spun a bearing but ive been told I can change them without taking the motor out. Which leaves me to believe that this is common. How can I tell if the crank is damaged and if there is still some bearing protecting the rod and crank would it be ok. Ive changed them but their not the right size. So ima change them again. I guess what im asking is since the bearing material is so much softer thatn the rod and crank. It shopuld be ok right? The bearing was squished but it was still separating the rod from the crank. Please respond asap thanks.4 runner