Tried putting it much further down the last time I reassembled it.You need the stem much further down into the steerer - you can see the paint rubbed off, that's not far enough in.
Thought as much. I guess my next question is: is it worth going to take it to someone baring in mind it cost me nothing.....? Or is it game over and better to get a new one? I'm only a warm weather cyclist and so I'd probably only spend up to £250....You can see the minimum insertion point on this image. It says "MAX ↑ " with a line above it. When the stem is inserted into the fork this is the highest that the stem should be - this line should be level with, or below the top of the fork.
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Yes to all. I can get the hex tight, but then as I said before with a little excess force, (I guess equivalent to trying to open a particularly stubborn jamjar) I can still swivel the handlebars. I'm assuming this isn't ok?!New bearings and a bit of grease and it should be good to go. This assumes that the thread on the long bolt is OK and the thread inside the wedge nut. Have you tried putting it all back together with the stem properly inserted and seeing if this works? Is the hex hole in the top of the long bolt OK? Can you get it properly tight?