Working on our newly acquired 12 Smart the valve cover was previously I stalked with grey RTV and leaking badly, I order a gasket and it came today. I figured it would have a lip & bolt holes. But it’s just a thin silicone bead material. And the grove on the valve cover is very shallow. What’s the trick to get it to stay in place as I install it? I have worked on several cars mostly Euro cars, and this is a first running into this type of gasket without a placement grove or through bolt holes. What’s everyone doing? Thanks