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Posted: 12/17/2010 2:58:18 PM EDT
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I recently did an overhaul of a '74 wingmaster.
New bolt and slide (express - flexitab) Flexitab carrier Police Dog Spring Shotgun was also recently duracoated. Receiver was media blasted. I cleaned all of the areas that had moving parts and all loose media. When I go to cycle the action, it will occasionally get hung up. Like it becomes very difficult to cycle the action, if at all. It would begin to extract and stop until I force the bolt closed again and tried to cycle again. Then I could pump it again and get a new round in. On occassion the round will eject, but when I go to slide the bolt forward, the round seems to get "stuck" until I force it forward. Again this only occurs periodically. Any ideas to what it could be? |
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Do you still have the original bolt/carrier?
Does it/did it do this with the original bolt/carrier? What type of fore stock do you have on it, Police or Express? Can you see any wear marks on action bars or fore stock? And as much as I hate to ask...you assembled everything correctly? 
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Quoted:
Do you still have the original bolt/carrier? Does it/did it do this with the original bolt/carrier? What type of fore stock do you have on it, Police or Express? Can you see any wear marks on action bars or fore stock? And as much as I hate to ask...you assembled everything correctly? I'll give the bolt carrier and bolt a try. Should I also try the original lifter as well? Forend is factory synthetic Express I do not see any wear on the action bars except where they come into contact witht he shell retainers. Shotgun appears to be assembled correctly. I am very good as taking things apart and resassembling them back correctly. I did end up with any extra pieces. And I have taken it apart many times without issues before. When the receiver was stripped and cleaned, I could still feel some media under the shell retainers. Maybe that is the culprit? I was able to manipulate the shell retainers though. |
| When you paint a weapon you have to break it in. If you painted the inside of the reciever and the action bars there is a good chance these are binding. If there is excessive wear already on the action bars this can be the issue. After racking a few hundred times it should smooth out. If this is not the issue then I can't tell you as it could be most anything. You changed parts and there can be an issue there. |
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Learning the part names for the 870 would help when responding to questions. I find it hard to answer question when I have to guess what someone is talking about.
If by lifter you mean the carreir then there can be an issue there. You added the flex tab carrier and you also added the required breech bolt and slide. Here is where terms get confusing as think some guys here are calling the slide the bolt carrier. For a flex tab conversion to work you have to change the breech bolt, slide and carrier. If you installed the correct parts then there should be no issue there. If you don't fiqure this out you can call me late tomorrow afternoon and have the weapon in front of you. Having some dummy round to work with would be safer. I can walk you through finding the issue. Call 231-690-0954. This is the best way to figure this out next to taking it to a gun smith. |
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Quoted:
Only happens when loaded...high brass or low brass? Howt's the chamber mouth look? Where is the shell or action catching or sticking? With high brass (have yet to test with low brass), when extracting, it extract about halfway. The shell feels loose though, but the bolt/carirer/pump feels stiff unless I force it back closed then back open. When a new round is in and I go to rack the slide forward, it gets stuck about half way, but the shell is very tight and won't budge. I pull the slide backwards to clear it. Its very inconsistant. Sometimes it happens and sometimes it doesn't. I tried cycling though the same 5 shells of Rem 9 shot Buckshot high brass. It is not one particular shell that has issues, it would just occur at random. I cycled the shells couple weeks ago and they cycled through fine. This week I cycled them through with more issue than usual. Keep in mind these are the same shells. I thought that the flex-tab was the issue in the lifter that was getting caught on the brass lip, but the lip clears the flextab "U". I will have to try the old lifter tomorow and see if that fixes the issue. To aippi: Sorry for the confusion inmy lingo. Slide is refering the the pump arm assembly. I did do the flextab conversion with the flextab lifter and the boltand carrier from a mid 90's express. The carrier has the flextab notches. |
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No, the slide is the metal part the breech bolt sits on. You have to change that as part of the flex tab conversion.
To convert a non flex tab 870 you need the flex tab convesion kit. This contains a new breech bolt, slide and carrier. If you did not change the slide there is an issue. Down load the schematic of the 870 from the web site and the parts list. Compare the numbers from the schematic to the parts on the parts list and you have the correct terms. There is no issue an 870 can have that I can not reslove with the weapon in my hands and very few I can not talk the owner through. There is only one 870 so knowing this weapon is not difficult when you have the training and do it every day as I do. We will figure this out and save you a trip to the gun smith. |
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Quoted:
No, the slide is the metal part the breech bolt sits on. You have to change that as part of the flex tab conversion. To convert a non flex tab 870 you need the flex tab convesion kit. This contains a new breech bolt, slide and carrier. If you did not change the slide there is an issue. Down load the schematic of the 870 from the web site and the parts list. Compare the numbers from the schematic to the parts on the parts list and you have the correct terms. There is no issue an 870 can have that I can not reslove with the weapon in my hands and very few I can not talk the owner through. There is only one 870 so knowing this weapon is not difficult when you have the training and do it every day as I do. We will figure this out and save you a trip to the gun smith. I upgraded the 3 parts necessary for the flexitab conversion. The breech bolt, slide and carrier. The breech bolt and slide is from a used Rem Express and the carrier is brand new from Remington. The slide is the new style with the proper notches. I tried switching out just the NEW dog carrier spring for the OLD dog carrier spring that was original to the 870. The 870 seems to cycle much better. It gets a little stiff sometimes if I cycle it slowly, but its light enough that I can power stroke the pump arm enough to cycle the action adequately. |
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