I have finally started to build up my Don Louis steel frame. All going well until I came to fit some V brakes to the canti studs on the forks.
One side much closer to the fork leg than the other. Damn.
I bought the frame from a charity so don't know the background. The main frame looks straight with no apparent damage and verything lines up.
However, despite having no apparent damage, the forks are slighly askew.
Can this be fixed - i seem to remember reading that a framebuilder can cold set the forks in a jig?
Any suggestions welcomed.
Not sure what you mean by "one side closer to the fork leg than the other". Normally fork blades are either out to one side or out of alignment by having one blade further forward than the other.
This is what I do for forks without cantilever bosses. If you have a bench vice and a couple of straight edges you can easily do this yourself to very good tolerances without the need for a professional jig.
Depending on the material, forks are really resilient and can easily be set back into line. I use wooden blocks that fit around the steerer and then clamped in a secure vice. 2 x straight edges or metal rules that you can lay across the blades, one at the top just below the crown and one on the top of the dropouts to check for forward/back alignment.
You also need to check for sideways alignment. Best way to do that is to mark your steerer tube on a flat sheet of plywood and mark the brake bolt hole and measure a centre line down the wood, down through the centre of the steerer and through the bolt hole. Most forks are 100mm between the dropouts so mark a line parallel with the centre line 50mm each side of the centre line. Laying forks on the wood template and lining up the steerer tube and bolt hole will show sideways problems as both dropouts should sit nicely on each of the 50mm marks when the steerer and bolt hole are lined up. Fork blades take a good old heave but will move and checking with the steel rules and the drawn template will get you perfect again after a few pulls in the vice.
If, after resetting fork blades, the bosses appear to be out of line then these may need repositioned and re-brazed.
_________________SBDU Specials : SB4409
1981 Dynaflite 753 Aero TubingSBDU Time Trial Specials : SB2692
1978 753, SB5464
1982 531 Special Lightweight, SB5794
1983 531cSBDU Road : SB1688
1977 Team Pro 531, SB3800
1980 Team Pro 753, SB4059
1980 Team Pro 753 Super Record, SB4944
1982 531SL, SB5377
1982 753, SB6398
1984 753R 50th Anniversary Super Record, SB6560
1984 531c Panasonic Raleigh Services des Courses, SB7121
1985 753R, SB7219
1985 531 Pro Super, SB8868
1988 753R Services des Courses, SB8945
1988 753R Services des CoursesSBDU Randonneur : SB7657
1985 753R, SB7660
1985 531cSBDU Track : JR 1 78 T
1978 Jan Raas Track Frame 531 http://raleigh-sb4059.com/