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Brazing the Fork Crown | by jimgskoop
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Brazing the Fork Crown

Set Anvil jig to desired fork offset (62mm in my case). Flux parts heavily, assemble into jig. Clamp fork ends on dummy axle, clamp steerer tube. Steerer tube should protrude from inside of fork crown 1-2mm to give us a "shelf" to flow silver against/into. Ensure that crown is parallel to dummy axle by positioning the locating bar at mid-length of jig and touching back of both blades. Lock everything down, clamp into workstand upside down. Heat front face of crown and steerer tube. Drop silver at top and brush/flow it down inside the crown until it appears at the crown race. Repeat at the back of the crown. Then work around both sides until there's a consistent ring of silver all the way around the crown race seat. Then move onto the fork blade sockets. Push as much filler as you can into these, starting from the inside and work around to the outside. Watch out for any pointy tags on the crown -- make sure those are laying flat, either by pre-bending with pliers and/or pressing into place during the brazing. Let everything cool to the touch, then soak to remove flux.

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Taken on May 15, 2015