80s link-detached home with brass door handles throughout, the type where
you hold them like a lever and press them down rather than the twisty knob
The other day, there was a snap as I opened the drawing door, and the door
handle has drooped ever since. I presumed a spring inside the latch had
broken and went and got a replacement Yale A0507 tubular latch from B&Q, but
the spring in that doesn't appear to work any better than the broken one.
Does anybody know whether I need a different type of latch or need to
perform some little trick while fitting it (the instructions don't mention
anything, just the obvious in making the cutouts/holes if the door & frame
hasn't already got them, which of course they have)?