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Normal Topic repairing a Lyman 103 tang sight (Read 9186 times)
merhere
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repairing a Lyman 103 tang sight
May 25th, 2010 at 9:11am
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I am trying to fix an old Lyman tang sight. Turning the windage adjustment screw clockwise moves the sight correctly to the right. But when I turn the screw counter-clockwise it comes unscrewed instead of moving the sight back to the left. 

Anyone know a fix, or have a diagram of the workings so I can figure out what's happening?

Thanks
« Last Edit: May 25th, 2010 at 10:08am by »  
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BP
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Re: repairing a Lyman 103 tang sight
Reply #1 - May 25th, 2010 at 2:47pm
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merhere,

Without a picture of your 103 sight, I'll have to guess, but can you take a look at the left side of the sight where the small end of the windage screw protrudes through to confirm that the windage screw retaining washer and lock nut are in place?

BP
  
There are three kinds of men: The ones that learn by reading, the few who learn by observation, and the rest who have to pee on the electric fence and find out for themselves.
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merhere
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Re: repairing a Lyman 103 tang sight
Reply #2 - May 25th, 2010 at 3:16pm
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I'll take pictures this evening and post them. But, the screw doesn't protrude. It just barely reaches the other side of the sight.
  
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Spud
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Re: repairing a Lyman 103 tang sight
Reply #3 - May 25th, 2010 at 6:30pm
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I suggest that you contact JD Steele as he was the whiz at troubleshooting the Lyman 103. No longer posts on this forum but you might reach him at Treeblood1(at)aol.com
I hope you get that 103 working, they are a great sight!
Spud
  
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merhere
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Re: repairing a Lyman 103 tang sight
Reply #4 - May 26th, 2010 at 3:24pm
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BP;
You nailed it! I looked in the gun case and found a lock nut about the size of a gnats you know what. It has sheared off. I'm surprised I found it. I bet it will be tough to find a replacement screw set. I'll probably set the windage for the range and leave it be.

Here's a picture: (You need to Login or Register to view media files and links)

Spud;
I 'll try to contact JD Steele. Maybe he'll have the parts I need.

Thank you both.
  
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John Taylor
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Re: repairing a Lyman 103 tang sight
Reply #5 - May 26th, 2010 at 7:43pm
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Is this what it looks like? Could be the screw is broken and the nut missing. This one is on the way for me to make repairs
  
John Taylor   Machinist/gunsmith
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Re: repairing a Lyman 103 tang sight
Reply #6 - May 26th, 2010 at 7:46pm
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OK, I was to slow and you got your picture up first. I might be able to make a new screw for you.
  
John Taylor   Machinist/gunsmith
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Re: repairing a Lyman 103 tang sight
Reply #7 - May 26th, 2010 at 8:21pm
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John,

Your pic looks like a Lyman #47 style, maybe a repro.
  
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Re: repairing a Lyman 103 tang sight
Reply #8 - May 26th, 2010 at 8:39pm
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It does say NO. 47 in the letter that came with the picture. I need to make a new knurled screw for it.
  
John Taylor   Machinist/gunsmith
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merhere
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Re: repairing a Lyman 103 tang sight
Reply #9 - May 26th, 2010 at 9:19pm
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John, that would be great. I have the lock nut if that helps. I'll PM you.

I don't know what model Lyman it is. Lyman is stamped on it, but I don't see a model number anywhere. My great aunt used the gun on her high school rifle team around 1920. The sight was on it then.
  
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