I have a 2012 Lund Tyee. It has a plastic Attwood gas vent cover on the outside of the hull. I managed to shear it off flush with the hull leaving the vent hole open and exposed to spray. I ordered a replacement cap that is threaded and designed to be threaded into the fixture inside the hull. I was able to screw out the remaining part of the broken piece. I assumed the fixture inside the hull was secured in place and all I had to thread in the new part. WRONG!!! Turns out the inside fixture is not secured. It was just sitting off center of the hole in the hull and free. Apparently, it was just supported by vent hose. I could still see it but there was no way I could thread in the new part. I could not reach the fixture from the inside of the boat due to padded upholstery. Finally, using a 1/4 inch copper pipe with a very small tooth I bent in the end, I was able snag the threads of the inside fixture and pull it towards the hole, push the new part down the pipe and, with much time, and many failed attempts, I was able to thread the new part into the inside fixture and pull out the copper pipe. My question to this forum - If I were to break this new one off, does anybody have a smarter approach to replacing the vent cover? I thought about snagging the inside part, coating the face with epoxy, and pulling up against the inside wall to stick it place, Or using one of those Clam Shell covers to go over the exposed hole. Your thoughts please.