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Thread: Smith Anti Cleanout Screw Blaster Modification

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    Smith Anti Cleanout Screw Blaster Modification

    Here's the modification with JB Weld. It's the JB Weld epoxy mix, not their silicone mix. You mix it in the bottle and then insert a dollop down the nipple hole. It's a liquid so what do you do now? Wait for it to firm up some and when it does use your pointy things to shape the flash hole. Also insert your nipple in and out to keep the threads clear. Also use one of Alice's dental picks to clear your flash channel. Once it cures it's like solid steel.
    (See updated view below).
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    Last edited by Eggman; 06-20-2018 at 12:15 PM.

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    Explain please. The entire area to the right of the nipple is sealed.There is now a direct channel from the nipple straight into the flash channel.

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    Smith Anti Cleanout Screw Blaster Modification

    Is the screw still in it I was thinking you were filling in the striped out hole for the clean out screw. Sorry my bad


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    Last edited by EPPS1919; 06-19-2018 at 01:58 PM.

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    Right the screw is still in there like normal. Just built a wall around it.

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    Actually I have one I filled completely including where the screw WAS and it's been just fine for over 25 years. I use the same High Temp JB but it comes in the two tiny toothpaste looking tube where you squeeze out equal amounts and stir it real good with a toothpick. There is nothing wrong nor unsafe with this manner of repair.

    Eggs.....did it work? Kinda looks a lil rough down there
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    Yeah works fine. The surfaces get tacky as they cure which is not condusive to a neat smooth finish as you shape it. Plus I ran probes through thirty or forty times. Folks who are actual craftsmen would get a nice smooth finish, but the JB still has kind of a grainy look.
    Last edited by Eggman; 06-20-2018 at 08:00 AM.

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    This 'modification' has an added benefit. The repro Smith's have a cavernous bolster under the nipple, and in my case, the carbine took several caps before the first round would go off. Once I filled the bolster with JB Weld as you did and 'channeled' the fire to the flash hole, the carbine fired on the first cap every time.
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    Quote Originally Posted by RaiderANV View Post
    I use the same High Temp JB but it comes in the two tiny toothpaste looking tube where you squeeze out equal amounts and stir it real good with a toothpick.
    Yeah I kind of wondered if this would be a one use deal. I stirred up the batch and packed the cavity - recapped the bottle. I checked in the bottle sometime later and the two ingredients had separated. It does not cure in the sealed bottle so it can be reused.
    I test fired with a musket cap. Looked like the after burner of an F4 Phantom coming out of the barrel.

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    Here's a view after test fire. Smoothed out sides a bit and blew out last of bubble gum.
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