Bicycle Mechanics - removing headset for powdercoating?
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04-27-07, 10:06 PM
I'm prepping a frame for sandblasting and powdercoating, and I'm assuming I'll need to remove the headset cups, and crown race. The thing is I've never removed these parts before. I think I should be able to knock out the cups with a 1x1 and a hammer, but how can I get the crown rave off without damaging it? or is that even possible?
It is possible to remove the crown race with a hammer and a large punch if you go around it gradually. I've seen races and cups damaged by flathead screwdrivers so I don't recommend that route.
$5 and your local lbs.
DIY, take a piece of conduit or other soft metal piping. Split it and bend it to form a cheap-o race remover. Have at it.
04-28-07, 12:54 PM
The ease of removing a crown race depends on how much, if at all, it sticks out beyond the fork crown in front and back. If there is an exposed lip on both sides, removal is fairly easy.
I use a bench vise with soft jaws. Open the vise until the exposed edges of the crown race sit on the top of the jaws with the fork legs extending down and out the bottom of the vise. Tap on the steerer tube (protected with a block of wood) until the crown race starts to come off then very gently to complete removal.
If the crown race is completely within the fork crown it's a much more difficult job and a special tool similar to a "bearing splitter" is usually needed.
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