I only say that because I once opened a motor and the screen was clogged with a shit load of rtv....the guy got a little crazy gooping the motor cases Upper and lower together with the shit.......was stuck all inside the oil pump too...... like you said depends on the experience or inexperience of the builder....but just to be on the safe side I kinda figure if a guys asking questions on the internet....his experience level might not be so high....no what I mean?