To reassemble the water pump on my 1988 Evinrude 88 spl You are supposed to use OMC Gasket sealing compound, for under the gasket, OMC Adhesive M for the impeller o ring. Since I do not have these products on hand could I use something else like Permatek for the gasket? And I have no ides what I would use for the OMC Adhesive M. I just don't want to buy a tube of some expensive OMC stuff that I will never use again.