So I "was" hanging my bike upside down in the garage and now there is what seems to be oil from the forks dripped to the headset. So is it bad to hang them upside down? The forks are Manitou stance and one side is spring and other is air? possibly? so when I air them up "make them stiffer" it doesn't stay stiff very long! Can I rebuild these forks or has anyone else done this?