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Old 04-24-14, 09:33 PM   #1
09cptn
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Stuck stem adapter

I just converted my 1" cannondale steerer to 1 1/8" with a nashbar adapter but I forgot to put grease on it when putting it in and now it is stuck. I can completely remove he bolt but it won't budge. It went in just font though. Should I try heating the metal with a heat gun to loosen it, or is this best handled by the lbs? I like the height currently, but I want the ability to adjust it. Thanks y'all!
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Old 04-24-14, 09:48 PM   #2
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If this is an adapter for converting a 1" threaded system to accept a threadless stem, then I suspect you're not loosening it properly. These stay put by way of a wedge, which is pulled up with the drawbolt. But he bolt cannot push the wedge down again without your help.

DO NOT REMOVE THE BOLT.

Instead, loosen it a few turns then tap it down to push the attached wedge free.
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Old 04-24-14, 09:51 PM   #3
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first, i would screw the bolt back in until about 1/4 inch from starting to tighten down. then give the bolt a moderate tap with some kind of rubber mallet. then see how that goes.

EDIT: didn't occur to me that it might be one of those 1" quill to 1 1/8 threadless stem gizmos, but i wouldn't doubt that it is.

does it look like this one in the video?


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Old 04-25-14, 04:35 AM   #4
09cptn
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It is for converting a 1" threaded stem to 1 1/8 thread less like in the video. FBinNY, I already removed the bolt once in my exploration. Am I screwed now? I have properly reinstalled the bolt.
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Old 04-25-14, 05:07 AM   #5
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Quote:
Originally Posted by 09cptn View Post
It is for converting a 1" threaded stem to 1 1/8 thread less like in the video. FBinNY, I already removed the bolt once in my exploration. Am I screwed now? I have properly reinstalled the bolt.
If the screw takes thread and tightens up properly, undo it a couple of turns only, then give it a tap as suggested above. See if that frees the stem up.
If that doesn't work the wedge may have bottomed out on an internal neck in the steerer tube, which will limit your options considerably.
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Old 04-25-14, 08:21 AM   #6
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Quote:
Originally Posted by 09cptn View Post
It is for converting a 1" threaded stem to 1 1/8 thread less like in the video. FBinNY, I already removed the bolt once in my exploration. Am I screwed now? I have properly reinstalled the bolt.
Not at all. Put the bolt back, and pick up the thread thread it all the way to the bottom, back it up 1/8", then tap it down. If you can't pick up the thread, and the bolt won't bottom, then just use it as a drift punch to tap the wedge clear.

So you know, you're better off keeping the bolt attached because then will pull it out with the stem. If you don't have the bolt attached, the wedge will drop to the bottom of the fork and can jam there.
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