Hello all, glad to be a part of this group. I do apologize if this has been covered before. I picked up this beauty with only 3062 original miles. Obviously been sitting. Issue I am inquiring about is I am in the tank cleaning stage. This is a single tube petcock screw on design. When I removed the old petcock its just a tube, no screen. Low and behold the screen is still attached inside the tank. Is this the way it was designed or have the years of crud and varnish kept it fro me? Any thoughts would be greatly appreciated.