I'm hoping the list members might have discovered a good solution to this problem I've got. A fork on an older frame I picked up last night has something rattling around inside one of the blades. This is a fork of unknown origin, but is made with 4130 Cro-Moly with a pleasant full sloping crown. Currently painted black (although shortly to be repainted) and has vent holes at the top and bottom of the blades.
I tried pouring linseed oil into the blades in the hopes that the oil might trap the debris (it sounds like a single large 'pebble' as opposed to a bunch of rust flakes) once the oil dried out, but so far no success (it may not have dried enough yet).
Any other ideas?
Ottawa, Ontario, Canada