Removing Gas Check from Breech Block

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Jim Stewart
Posts: 26
Joined: Thu May 29, 2003 3:18 pm
Location: Atlanta, Texas

Removing Gas Check from Breech Block

Post by Jim Stewart » Sat Jan 25, 2020 6:22 pm

I have an original New Model 1863.

Can someone tell me the tools needed to remove the gas check from the breech block?

What is the technique to remove it, please?

Tomklinger
Posts: 271
Joined: Wed Dec 03, 2014 5:00 pm

Re: Removing Gas Check from Breech Block

Post by Tomklinger » Sun Jan 26, 2020 7:31 am

Mr. Stewart,
I’ve used a small bearing/bushing puller with good success. It needs to be removed evenly without cocking it to either side. You may need to soak the block in penetrating oil first. However, they are not usually real tight because they are intended to move slightly when the rifle is fired. There is a company making a removal tool.i can’t remember who it is at present. Google “removing Sharps gas seal” it should come up......
Hope this helps,
Tom Klinger

Jim Stewart
Posts: 26
Joined: Thu May 29, 2003 3:18 pm
Location: Atlanta, Texas

Re: Removing Gas Check from Breech Block

Post by Jim Stewart » Mon Jan 27, 2020 3:10 pm

Thank you.

George Babits
Posts: 185
Joined: Tue Jun 16, 2015 10:53 am

Re: Removing Gas Check from Breech Block

Post by George Babits » Mon Jan 27, 2020 8:27 pm

My original Sharps carbine doesn't have the "notches" on the sides where something can be hooked under the gas check pace. How on earth do you use a mini gear puller on ne. Do you go inside the large center hole or what?

George

DaveC
Posts: 10
Joined: Mon Oct 19, 2015 1:34 pm

Re: Removing Gas Check from Breech Block

Post by DaveC » Tue Jan 28, 2020 8:57 am

I have an early version of the Pedersoli Military Model which (as far as I can tell) has a pretty authentic copy of the Lawrence gas check system. The block plate is almost a press fit to a thin line, and there are no grasping grooves.

I grind a cheap wood chisel as sharp as I can, put the edge on the line on one side, and press or gently tap it in until I see a slight widening of the line. (It will be slight; don’t try for more.) Then I move to the opposite side and repeat. Then the top and bottom. To the first side again. By now pressure or a few light taps should widen the line a bit more than the first time. Then around the block again, and repeat until the line becomes a gap, then a space, then (finally!) loose enough to grab and wiggle out.

My check plate is hardened, but I don’t want to do any bending by trying to get any side out too far by itself. Slow and easy, round and round, does it. I have used single-edged razor blades, mounted in a vertical wooden handle, but they break a lot and the pieces stick in the gap, so the chisel is mostly what I use. Get a cheap one at a swap meet or yard sale, and grind the bevel as gradual as possible.

Hope I’m not putting too fine a point in this, but slather the plate and seat with anti-seize before reassembly. If you shoot the thing, you’ll be glad you did. It’s still the worst part of the cleanup; a cap&ball revolver is a breeze by comparison.

George Babits
Posts: 185
Joined: Tue Jun 16, 2015 10:53 am

Re: Removing Gas Check from Breech Block

Post by George Babits » Tue Jan 28, 2020 3:06 pm

Yes, that is about what I did too. Got it off this morning. The gas check plate was a bit easier than the cleanout screw for the cap channel, but I got that too. I didn't lube it up with anti-seize compound yet because it will probably be a while before I shoot it, but will do that before shooting.

I have been using Lyman's 54 caliber minie bullet with my Shiloh, but am thinking about ordering one of Accurate Moulds 54 caliber heeled moulds (54-440. Has anyone used this bullet with their paper cartridge Sharps?

George

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