Hi All,
A new bush should be a good fit in the leg,
adding grinding paste as suggested will lap away the bronze and some of the leg as well,
this will lead to a loose(r) fit
It may be of use when theres a ding in the leg, but will wear an equal amount from the opposite
side ofthe leg !!!!
I would not use the bush again, as the embedded particles will continue to lap away at the fork leg
Theres a tool called a "David Brown" reamer which with the correct blades could be used to ream a worn leg circular (provided you could remove the taper plug at the bottom)
A "Sunnen" hone would do the same job, but are a megabuck item
Then special oversize bushes would need to be made to suit
Over the years I have made two different tools to overcome light scores and also to remove a ding in an otherwise good leg
The first is a hone of sorts, a steel plug thats a good sliding fit in the leg has two slots milled lengthways
for about half its length, these are sized to accept square section hone stones
cross drilled holes in the plug slots take some springs to push the stones outwards
the length of the hone stones extends past the end of the tool to work on the fork leg walls around the taper plug at the bottom.
The opposit end of the plug is drilled and tapped to accept a piece of 1/2 round steel, so the hone can be spun with an electric drill
The second tool was made from an old stanchion and bushes,
I cut away a piece of the bottom bush and leg and silver soldered in a piece of tool steel
this was then ground back and a cutting edge formed until it was a sliding fit in the undamaged part of the leg, the stanchion was rotated slowly in the lathe and the leg was fed inwards until the tool steel cut away at the high spot
It took several attempts to get the cut just right and the new leg and bush to slide nicely
I have heard of "modern" stanchions and proper dampers being fitted into period forks
Has anyone more information on such a mod????
John