worn hinge pins is a frequent cause of that - take the springs off and close it - if it sits flat, you need new hinges, the pivot pin holes are ovaled out
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
