Well it does look like the brass balls that sit inside the hinges are worn down (because I can't see them and they usually show through). So, if they look that way on in-person inspection, I would start by ordering two of those from Scamp
and then re-evaluating. You could also have one or more of the other issues going on (I can't tell from what you are posting), but you might as well start with the hinge balls (at least, I would).
You have to order two sets from Scamp
, because a "set" only does one hinge. I think the scamp
bolt and nut are non-stainless, so I would replace those with stainless (in other words, I would just use the balls from the kit and then go stainless for the rest).