I'd say drain it first (good opp to change it anyway /ubbthreads/images/graemlins/wink.gif ). The gasket under the little "number plate" is what you're going for, right? Asking because the bigger sump gasket is a screen type and not the same. If I remember correctly the little one is standard "paper" gasket. Remember there's a plunger, spring and ball up in there, and gravity always wants a sacrifice. /ubbthreads/images/graemlins/wink.gif If you can get the old one to let go without damage, use Permatex Hylomar and put it back. If it's junk then a small roll of gasket material, about 0.150" thickness from a local parts house would be fine to make a new one, and Hylomar that'n.
Wait for Tony or others to pap up on this as it's been a while since I've been through an O.D., and I ain't battin' the 1K lately. /ubbthreads/images/graemlins/jester.gif