Uncle Henry hinge pin replacement

[onlyshado]

How do I replace the hinge pin on my Uncle Henry single blade? It's getting a little loose after 40+ yrs of use. I can't see any outline of the pin on either side. I'm not going to try driving it out with a punch or press until I get some advice about how to proceed and have the right pin material on hand.
Picked up several old worn sharpening stones at a yard sale. One really stands out, it's about 3/4" x 2" x 6" whitish with some red specks and very small holes like seen in geodes. As I was flattening it quickly made a very slick slurry. Is there an easy way to identify what type of stone this is? That is without using mass spectography.

Thanks, onlyshado

 

[lambertiana]

A lot, if not all, of the Uncle Henry/Old Timer knives have Swinden Key construction for the pivot pins, and trying to drive out the pins through the hollow bolsters will only ruin the knife. There are ways to fix these knives, but I have never done this. Ask the mods to move this thread to the Traditional knives subforum and someone there will probably be able to help you.

 

[Byrom Hermo]

Check out Muskrat Man. Here’s his video on this subject:

 

[Alberta Ed]

Well, after 40 years, maybe it's time to retire that blade (and get a new one.. or two... maybe three).

 

[onlyshado]

A lot, if not all, of the Uncle Henry/Old Timer knives have Swinden Key construction for the pivot pins, and trying to drive out the pins through the hollow bolsters will only ruin the knife. There are ways to fix these knives, but I have never done this. Ask the mods to move this thread to the Traditional knives subforum and someone there will probably be able to help you.

Thanks,

A lot, if not all, of the Uncle Henry/Old Timer knives have Swinden Key construction for the pivot pins, and trying to drive out the pins through the hollow bolsters will only ruin the knife. There are ways to fix these knives, but I have never done this. Ask the mods to move this thread to the Traditional knives subforum and someone there will probably be able to help you.

I sure didn't want to make it worse, and Iwill take your advice and seek more guidance.
Thanks, Joe Emfinger