This must be an odd question as I can't really seem to find any information out there. I just replaced the drive oil in my IMCO SCX with SC lower. I picked up new Mercury blue drain plug gaskets but I can't find any information on the proper tightness/torque on the drain plugs. I don't want to over torque them as not to distort the gasket seals but don't want them to loose that they cause issues. I did find some info out there. I saw something floating around on the web about 7 Ft/Lbs or 85 Inch/Lbs. I probably will call IMCO but I thought I'd check out and see what the opinions are here first.