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Posted: 10/24/2011 3:41:40 PM EDT
| I am putting a SARCO kit of salvage, off spec and junk parts together on a Palmetto State Armory lower. I am having trouble with the hammer falling when I release the trigger during the function test. It only does this when the trigger is released very slowly. I have filed a good bit off the front of the dissconnector and it is still doing it sometimes. The trigger resets just before it gets fully forward. I have opened up the hole in the disconnector a little as it seemed to be binding on the pin. I have oiled it (CLP) and tried it dozens of times but it still does it occasionally. Do I need to just keep filing or is there something else I need to be looking at like a good LPK? |
| +1 just buy a new FCG. you SHOULD NOT EVER have to file down parts in your FCG to make it work, these are not 1911's. currently you have a safety issue with your gun, and to make it even worse, you have a weapon that can be considered an automatic weapon since it fires more than one round per trigger pull. believe it or not, people have been convicted of felonies because their disconnector failed and the gun double tapped. |
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I checked. The dissconector spring is not upside down. I have checked that and several other things multiple times.
The legal issue is why my thumb is sore from stopping the hammer instead of finishing the thing and putting the upper on it. it is not getting fully assembled until this issue is resolved. The hammer looks wrong in the sear notch. The dissconector was new before I started trying to time it. I think I am going to sub parts from a known good set until I figure out which parts are faulty and replace those. This is a learning experience for me, not a commercial enterprise where I have to make money at it. At this point it is more important to me to know what causes this than to just throw parts at it and fix it. Thanks! O' |
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Quoted:
I am putting a SARCO kit of salvage, off spec and junk parts together on a Palmetto State Armory lower. I am having trouble with the hammer falling when I release the trigger during the function test. It only does this when the trigger is released very slowly. I have filed a good bit off the front of the dissconnector and it is still doing it sometimes. The trigger resets just before it gets fully forward. I have opened up the hole in the disconnector a little as it seemed to be binding on the pin. I have oiled it (CLP) and tried it dozens of times but it still does it occasionally. Do I need to just keep filing or is there something else I need to be looking at like a good LPK? Seemed to me you have an issue with the hammer following, in other words, sear is not engaging correctly (too little). The disconnector has nothing to do with sear release and since you have filed to re-time it, its geometry is probably no longer correct. I don't disagree that you want to figure this one out but as other have said, the FCG is no good. |
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Quoted:
I would go out an buy a good set of fire control parts. It's not worth the effort and aggravation in using unknown junk parts for the fire control group. This is a saftey issue and if left as is, someone could get seriously hurt or worse. So much this. Sometimes it's not worth trying to rehab bad parts. The FCG is DEFINITELY one of those. I had a DD LPK where the hammer wouldn't reset properly; the disconnector would hold the hammer, but the trigger wouldn't grab it. Effectively it would have doubled, firing once on the standard trigger pull and then again with a release trigger. Contacting DD had a new FCG sent out without a problem (and this one worked fine). I would not screw around with it. Even if you get it working, there's the constant question if it's safe or not. Better to replace it. |
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Thanks! It will be replaced just as soon as I can get my grubby fingers on the parts. I have done other assembly projects before with no problems. This one had me worried.
Edited to add: I took it apart ONE MORE TIME and looked at it all again. Polished the little burrs off the sides and edges of the dissconnector, gave the front bottom about five more strokes with the big file and put it back together. It all works fine now. Y'all have FUN now, you hear! O' 
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