Front Cover - Castle Nut Removal/Install

[Onefast99gsx]

Hi guys-

I bought the entire engine gasket set from Mitsu. Being that I cleaned the front cover with carb cleaner, parts cleaner and what not, I figure I better change the o-ring behind the castle nut on the front cover. I can't find much detail on this other than you're supposed to hit it counter clockwise with a hammer and flat blade to loosen it.

How do you install it though without the special Mitsu tool. The book shows a torque spec on it. Also, do you use RTV or loctite blue or anything?

Thanks for any info