Hi,, boat is a 1995 Bayliner Capri 1854, 3.0 mercruiser. Problem is I just pulled the rear elbow from the exhaust manifold (U shaped with 2 large bolts holding it on), it was leaking,, after cleaning off the old gasket I went to install the new gasket,, we'll here's the possible problem. The hole into the manifold is square and on 3 sides it has holes for water to pass,, each of the 3 sides has two separate holes (apparently one whole split in half),, problem is the new gasket only has one large hole on each of the 3 sides and this one hole isn't even large enough for all the water to enter. Hard to discribe,, I guess I could cut the gasket and make it larger,, or who knows maybe this is the way it's designed,, or possibly the wrong part?? Any ideas???