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1878 TTN coach gun tool ?


Matthew Duncan

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Proper way to tighten the firing pin nut? 
 

Cleaning the SxS after Guns of August I discovered both firing pin nuts were loose.  WARNING to Gunsmiths, STOP READING.

 

Wrench wouldn’t fit so I tighten them with needle nose pliers.  Wondering if y’all have found a source for a socket or specialized tool for next time?

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Garrison Joe and Warden Callaway answered that question for me about a year ago, but I don't recall the size of socket they recommended (which I now use). If they don't chime in here by the time I get home from work this evening, I'll check it out and get back to you here.

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I use a 7mm socket from Harbor Freight. 

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I use a 9/32 Craftsman nutdriver.

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Just now, Matthew Duncan said:

Standard sockets work!?  That’s what I get for assuming there wasn’t enough space.

The Harbor Freight one has a pretty thin wall. 

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If the socket doesn't fit down in the well of the action, stick it on your 1/4" bit driver, then grind off some of the outer wall, slowly turning it.    

 

The Chinese FP retainer nuts have a little taper, too.  If your socket is a tight fit on the nut, slot one wall about half way down with a hacksaw to let the mouth of the socket open slightly.

 

good luck, GJ

 

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3 hours ago, Sixgun Seamus said:

The Harbor Freight one has a pretty thin wall. 

Yep!

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