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Is it possible to remove a locating pin from a bridge ?

mikepilk
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mikepilk Distinguished Member

mikepilk

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I have an Omega 620 with one of the pins missing from under the barrel bridge.

I have a scrap movement, and would like to use one of the pins from that (I don't want to use the bridge as some of the plating is missing ).

I tried pulling out one pin with pliers, but made a mess of it, and it wouldn't budge.

I guess drilling from the top and pushing it out is the only option ?

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nickelsilver Distinguished Member

nickelsilver

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They are generally in there really tight- though they aren't always, like in the case of your missing pin. Safest way to attempt removal would be to grab it in acorrectly fitting collet in the lathe, and turn while pulling. But if you have a lathe, it's a few minutes work to just make a new pin, haha. And it's still a toss up if it will budge, even held snugly in a good lathe collet (or you crank down on it hard enough that it still deforms).

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mikepilk Distinguished Member

mikepilk

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Just now, nickelsilver said:

 But if you have a lathe, it's a few minutes work to just make a new pin, haha.

To quote Hamlet, "ay, there's the rub".  No lathe 😟

I was hoping it would be loose, but it was very tight. I've had them nearly drop out before.

I measure them as 0.60mm. I have some 0.7mm brass wire. So I'll put a bit in the Dremel, sand it down a touch, tap a bit in to the hole and file it off.  Simples 😀

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Nucejoe Distinguished Member

Nucejoe

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How about breaking the scrap bridge to release the pin, grab the bridge in plier to bend/break the bridge near the pin,  usually comes loose  if you just bent the bridge.

Insert the pin from the end that you say you messed to have the good half sticking out. 

Good luck

Edited by Nucejoe
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mikepilk Distinguished Member

mikepilk

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1 hour ago, Nucejoe said:

How about breaking the scrap bridge to release the pin, grab the bridge in plier to bend/break the bridge near the pin,  usually comes loose  if you just bent the bridge.

Insert the pin from the end that you say you messed to have the good half sticking out. 

Good luck

That worked perfectly - just needed a slight bend of the bridge to free the pin. Then pushed in, damaged end first. 

Thanks @Nucejoe 😀

 

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