I called Shumway Marine in Rochester, NY looking for a particular gasket. Rochester is 60 miles away - thus the round trip is 120. My 3qm needed a gasket. Here is what I told the guy at Shumway over the phone. I explained that the engine had two water pumps - one for outside - fresh water and one for internal - where the anti freeze is. I explained that the internal waterpump mounted to a section that housed the water temp sending unit and that assembly bolted to the block. I needed the gasket between said assembly and the block. Looking back, I realize now he had no idea what I was talking about when he said the gasket was in stock. I made the trip out there and, of course, he had thought I meant the raw water pump and the gasket I needed was a week's wait. No apology - no excuses - just an "oh no, we don't have that in stock and it will take a week."Does anyone have a site where I can get an exploded view of the 3qm with parts numbered? I have not been able to locate such a site.