I replaced the impeller and just fired up my newly acquierd 1977 evinrude 6hp motor. It runs, and pumps good water, but there is an exhaust cover with a bolt missing I beleive,and water seeps out of this hole. I took some pics to show the hole and I am wondering if there needs to be a bolt in this hole. Please check out the pictures and tell me if in needs a bolt or not, and if not, is there supposed to be water coming out? check out the pictures at the photobucket link, I have much better results with photobucket rather than using the iboats resources for uploading pics. http://s281.photobucket.com/albums/kk205/ownerator84/1977 evinrude 6hp/