1860 arbor removed

I finally got around to drilling and removing the loose arbor. I think it may have been removed and repinned at least once before. What are your thoughts on the strength of this?

Hopefully @45D will chime in on this.

TDM said:

Hopefully @45D will chime in on this.

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Thanks TDM!

Andrewmtnman said:

I finally got around to drilling and removing the loose arbor. I think it may have been removed and repinned at least once before. What are your thoughts on the strength of this?

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I'd order a replacement.

What does the frame look like?

Mike

Ok. I think it’s decent. I’ll take some pic’s tomorrow. Thanks Mike

Not only is the arbor bent to the left in the first photo but I believe I see a crack below the bottom thread.

Now t

hawkeye2 said:

Not only is the arbor bent to the left in the first photo but I believe I see a crack below the bottom thread.

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Now that you mention it, I think it is. Good eyes!

Rich44 said:

https://video.search.yahoo.com/sear...15d2d3ba095c6b8bb54bb2b6a84a0bcf&action=click

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Thanks, I've watched alot of the 1860 videos out there. Very informative, some more than others as with any other subject matter. I like the old timers videos the best

Looks like it was drilled through sideways. Don't understand that.

45D said:

Looks like it was drilled through sideways. Don't understand that.

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New to me also, need picture of frame. Present arbor could be used as template for making new one, or the trash can.

45D said:

Looks like it was drilled through sideways. Don't understand that.

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Yes, most videos I have seen the pin is in line with the arbor. This one was perpendicular, sort of. Its a Centennial.made in Belgium. I replaced a few parts from Uberti and they were close enough to make work. I see DGW has an arbor, I may try theirs, I think its for a colt

The face where the shoulder meets was drilled a bit but I dont think that will be an issue. I was planning to use a fair amount of JB when putting it together. Maybe best to replace the pin in line from the back like most are. I am very much an amateur when it come to this, but I like to learn

One more showing most of the threads are there

I think someone didn't know how to tighten the arbor. Looks like they drilled vertical for an attempt. Looks like the surface for the arbor shoulder to butt up against is compromised.
Here's what it should look like:



Mike

There is only one true way to correct at this point as I see.

The frame needs to be put in a milling machine. The threaded hole needs to be indicated round and plum. and then a new recessed shoulder established for a new arbor that will have a precision spacer to contact the shoulder on the arbor and the new recessed bore in the frame, and strive for around 3/32 to 1/8 thick. And that needs to be tighten up with the wedge slot timed. While I could do it I would probably junk it and save/sell the parts. And I am a guy that likes to fix things.

Thats not good news

I am sorry, but the arbor is very important to be strong and perfectly straight.

Rich44 said:

I am sorry, but the arbor is very important to be strong and perfectly straight.

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That's exactly right. The arbor is the "magic" or "secret sauce", if you will, to the design itself. I wouldn't trust an arbor that hadn't been removed and re-torqued in place to shoot what I shoot in mine.

I think the arbor was weakened by the drilling and certainly when I was unscrewing it. Before I started it appeared to be straight with the cylinder lining up well. I am pretty sure the receiver is true. If that is the case, would a new arbor and jb work if the arbor was installed square to the receiver? It's not a gun I would ever sell. It was my dads from when he bought it new in the 60's

Being your Dad's changes things. My younger brother wanted to know if we would shoot our long gone father 30-06 (sporterised by our dad aka a Model 1903) if the chamber was fixed (corroded severely - long sad story I don't need to tell). Upshot was another brother had started to do some stuff in mil surplus.

Chamber was not worth a save but it was doable to get an unused barrel and have a gun smith change it. We shot it, one brother hunted with it and it resulted in a new interest in Mil Surplus then target shooting and eventually I wound up shooting Black Powder revolvers.