When you import an assembly and get "Self-intersectingface",when you repair this - exactly what is takingplace?

Does SW move physical dimensions to achieve a "healedmodel"?
-----------------
If I receive an assembly where my customer has madeparts thathave press fits - therefore - the internal part isbigger thanthe external (i.e. an iron sleeve in an engine block),would thistrigger an import with faulty faces?


Thanks
-KutchSolidworksImport export