I am working on getting an old T020 to start. I thought I had a clean gas tank but after much trial and error I think I'm getting particles in the fuel line that are clogging things. And I was thinking about pulling the tank and cleaning it real good today. I noticed one end of the tank has a rubber gasket between the gas tank and the mounting bracket. The end closest to the steering wheel does not or it has deteriorated to nothing. My intuition tells me this is an insulator and is important. Maybe it was just an added layer of protection to keep the gas tank from rubbing together on the metal like it is now. I'm wondering what is the recommended gasket replacement. Can I just make something out of a old innertube or rubber cork gasket material?