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Win some, lose some...loss

Old 11-01-22, 01:41 PM
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jdawginsc 
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Win some, lose some...loss

So, I thought this was a good risk on bidding low and who knows...

Dura Ace levers, SunTour Bae ends, Cinelli bars and stem...um...oops

Bar ends are jammed in so hard and the Allen screws are over tightened and stripped...

Which means I cannot get the lever bands off, or the stem to salvage the wedge bolts.



The debacle culprit

Stem...



Was going to send @Mad Honk the bars but blech...

Was thinking of cutting the bars to bull horn but then the label as ugly as it is would be upside down...
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Old 11-01-22, 01:43 PM
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drill a small hole 2" from the ends, send in a lil lube overnight. I don't think an 1/8" hole will affect much, especially under tape.
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Old 11-01-22, 01:46 PM
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Originally Posted by Robvolz View Post
drill a small hole 2" from the ends, send in a lil lube overnight. I don't think an 1/8" hole will affect much, especially under tape.
Not a bad idea. Problem is I canít get purchase on the one side due to the stripped bolt.

i was also thinking of drilling the bolt out from the ends. Not sure what the mechanism looks like though.
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Old 11-01-22, 01:52 PM
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On my Campy Bar ends the threading is left hand so maybe somebody didn't know that. There are allen style easy outs that may work. Again ,on my Campy ones , I think the hex is a through hole. I just rewrapped the bars on my Mondia and I had forgotten , when I went to remove the bar ends I realized that I was putting too much pressure on the wrench and then I remembered! Doh!! Lucky for me it was prior to stripping the hex.
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Old 11-01-22, 02:26 PM
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Keep cranking until the bolts break.
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Old 11-01-22, 03:34 PM
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I have to ask - which way are you trying to turn them? They usually get damaged because people are trying to "unscrew" them, when in fact you need to turn clockwise and screw the bolt farther in to release the compression.
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Old 11-01-22, 04:30 PM
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The last post would have been helpful two hours ago! Haha.

I used the Dave method of junk yard mechanical engineering to remove the bar ends, salvaged the stem fixing wedge bolt and threaded wedge. Lost the floating wedge to corrosion.

Bar is saved, bar ends mostly (need a bolt to replace stripped fixing one but the shifters are good if a bit rough. Dura Ace 7400 levers intact. Stem is a carcass but the alloy steerer mech is good.

And Dave gets his rider quality bars.
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Old 11-01-22, 04:40 PM
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Originally Posted by jdawginsc View Post
The last post would have been helpful two hours ago! Haha.

I used the Dave method of junk yard mechanical engineering to remove the bar ends, salvaged the stem fixing wedge bolt and threaded wedge. Lost the floating wedge to corrosion.

Bar is saved, bar ends mostly (need a bolt to replace stripped fixing one but the shifters are good if a bit rough. Dura Ace 7400 levers intact. Stem is a carcass but the alloy steerer mech is good.

And Dave gets his rider quality bars.
When you look at uninstalled barcons it's obvious how they tighten and loosen. When installed, not so much.
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Old 11-01-22, 04:50 PM
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Originally Posted by 52telecaster View Post
When you look at uninstalled barcons it's obvious how they tighten and loosen. When installed, not so much.
Exactly right. Still not sure why the reverse thread. Other wedge mechs are regular thread...?
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Old 11-01-22, 05:36 PM
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Originally Posted by jdawginsc View Post
Exactly right. Still not sure why the reverse thread. Other wedge mechs are regular thread...?
it isnít reverse thread - itís just that the bolt needs to go deeper in to the bar in order to release the compression, so you need to screw it in rather than out. Another way to think about it is that youíre unscrewing a bolt by turning the tip instead of the head.
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Old 11-01-22, 05:42 PM
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Originally Posted by AeroGut View Post
it isnít reverse thread - itís just that the bolt needs to go deeper in to the bar in order to release the compression, so you need to screw it in rather than out. Another way to think about it is that youíre unscrewing a bolt by turning the tip instead of the head.
I now get it. Makes sense. More knowledge attained!
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Old 11-01-22, 05:44 PM
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@machinist42 by popular demand...



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Old 11-01-22, 05:47 PM
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The still functional, but rough and in need of one expansion bolt thingy, ratcheting bar shifters.

These will be offered free to anyone who takes on one of my ďO-RamaĒ boxes (brakes, hubs or pedals)



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Old 11-01-22, 06:17 PM
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Originally Posted by AeroGut View Post
it isnít reverse thread - itís just that the bolt needs to go deeper in to the bar in order to release the compression, so you need to screw it in rather than out. Another way to think about it is that youíre unscrewing a bolt by turning the tip instead of the head.
Exactly.
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Old 11-01-22, 06:41 PM
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