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JayDee24ca
 Post subject: closing transfer port
PostPosted: Sun Apr 02, 2023 7:03 pm 
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Posts: 130
Location: Boundary Country BC
I would like to reduce the inner diameter of a transfer port I have. Would solder hold, if I were to plug the TP then drill it out to a smaller diameter? I thought about JB Weld, but I am not so sure that it would last.
Thanks
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pistolero
PostPosted: Sun Apr 02, 2023 7:06 pm 
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that worked for me
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Dukemeister
PostPosted: Sun Apr 02, 2023 7:08 pm 
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Location: Kingston, ON
I think drilling out a TP is easier than filling one in. Have you thought about making a new one with smaller hole? What gun and what sizes are you talking about?

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JayDee24ca
PostPosted: Sun Apr 02, 2023 7:57 pm 
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Location: Boundary Country BC
Yes, I suppose making a new one from refrigerator tubing might work, but this TP is from a GMAC multishot breech, and is a fair bit taller than the normal 2240 TP. I am not sure that the synthetic tubing would hold up, whereas solder within a brass TP would be supported. The GMAC TP is 0.150, I did not realize that they were larger than standard, and I want to make it smaller so the breech is useable here. I realize I am venturing into thin ice territory, but I' really like to get this fixed.
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Dukemeister
PostPosted: Sun Apr 02, 2023 8:06 pm 
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since it's brass, then with the right solder you will be able to fill it and drill out to suit. let us know how it works.

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lauchlin
PostPosted: Mon Apr 03, 2023 7:23 am 
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Location: Vancouver Island BC
Use 50/50 Solder much low melting temp and lots of flux ....

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JayDee24ca
PostPosted: Mon Apr 03, 2023 8:40 pm 
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Location: Boundary Country BC
I used acid core solder to fill the TP, then drilled it out under size, and massaged till I got an opening of 0.144 inch. It shoots well, and holds around 440-470 with the alloy silver points, so it was a success. The acid core solder flowed beautifully in the brass TP. Just a bit of clean up.
Cheer, JD
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Dukemeister
PostPosted: Mon Apr 03, 2023 8:52 pm 
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Wooot! well done. Any pictures of the procedure?

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JayDee24ca
PostPosted: Mon Apr 03, 2023 11:38 pm 
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Dukemeister wrote:
Wooot! well done. Any pictures of the procedure?

No, I didn't think of it till the thing was back together!
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pelsby
PostPosted: Tue Apr 04, 2023 12:42 am 
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I have used small washers to do this , as it is easily reversible and size agile .
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