Fuel cap gaskets
I read the past article on gas caps and purchased the new gaskets from Aircraft Spruce. I removed the screws then took off the old gasket that was not rubber. I placed the new gasket on the brass backing plate and reassembled the cap. With the thicker rubber gasket I find they are too tight of a fit and very difficult to turn and secure. I tried lubricating them with Dow Corning 4 dialetric grease but still too hard to turn the final twist to lock into position. I then shimmed out the cap with a couple of washers but the fit was too loose to seal the tank opening. I’ll try replacing the washers with a round piece of thin aluminum to match the shim that is under the cap. The shim thickness is critical to being able to secure the cap. Also I am not happy how loose and floppy the new gaskets fit the cap. Is anybody else having issues with new gas cap gaskets?