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Barrel Stuck

Discussion in 'Black Rifle Forum' started by cyrsequipment, Feb 23, 2010.

  1. cyrsequipment

    cyrsequipment Angry

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    I thought about putting this in the gunsmithing forum, but this seems like a better place...

    I'm trying to switch out the upper receiver on one of my ARs, but the nut is completely stuck. I'm scared that I'm going to snap something. I have the proper wrench and I've done this before... what the heck do I need to do?
     
  2. mvician

    mvician Lifetime Member

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    Try heating the nut up.
     

  3. lawman800

    lawman800 Juris Glocktor

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    It just keeps getting better, don't it?
    Leave it in the sun? Metal does expand enough with heat.
     
  4. javelinadave

    javelinadave Hebrew Hammer

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    Spray the thread with WD-40 and let it soak overnight. Then with the upper in a block lightly wack the end of the wrench with a mallet and it should pop loose. Don't beat the thing or you will deform the upper.
     
  5. Constructor

    Constructor

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    Who built the upper? some use grease or anti-seize on the threads, some use blue loctite and some use red loctite.
    Heating up Blue is a bad idea it turns to powder.
    The barrel nut should have been torqued to 38lbs plus moving it to the next hole but not over 80ft lbs.
     
  6. cyrsequipment

    cyrsequipment Angry

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    I bought it from Model 1 sales...

    as for heating it, is there a way to do that without melting the plastic part?
     
  7. Constructor

    Constructor

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    Assume this was a M4 type with plastic handguards and you have taken those off? If you are talking about the delta ring that holds the handguards in place, that should be Alum. but ya just never know these days. There shouldn't be any plastic close to the barrel nut, just the Delta ring, wave spring and snap ring.
     
  8. cyrsequipment

    cyrsequipment Angry

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    LOL!
    Yea, I took off the handguards... The part that is plastic is the spring loaded part that held the handguards on (the part that the wave spring pushes on)... at least it appears to be plastic.

    I've been soaking the WD-40 to the space between the receiver and the nut... hasn't loosened yet.
     
  9. faawrenchbndr

    faawrenchbndr CLM

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    Just to check,........

    You have the upper receiver in an action block and that in a bench vise?
    Do you have the proper barrel nut tool?
    Does the tool have a 1/2" opening for a breaker bar?
    Have you tried using a breaker bar on the tool?
     
  10. cyrsequipment

    cyrsequipment Angry

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    No. I have this thing... http://www.gggaz.com/index.php?id=235&parents=121

    The "toothed" part that is up in that picture slips into the teeth of the nut holding the barrel to the upper. I do have to partially compress the wave spring to get them to properly "bite"... But I have also tried the two pins on the otehr side and they won't budge it either.o

    Just to clarify, I am doing this because I want to take the short barrel off this upper and stick it on an A2 upper that I have already managed to take apart (without issue I might add)...
     
  11. faawrenchbndr

    faawrenchbndr CLM

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    Do you have the upper receiver held in a action block and the action block in a vise?
    If not, how are you holding the receiver/barrel?

    You CAN insert a breaker bar into that multi-tool
     
  12. faawrenchbndr

    faawrenchbndr CLM

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    Also,....you HAVE removed the gas tube?
     
  13. AK_Stick

    AK_Stick AAAMAD

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    go buy some liquid wrench and give it a soak.


    Not to sound like an ***, but you are pushing in on the nut before you're twisting it right?
     
  14. cyrsequipment

    cyrsequipment Angry

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    Yes, I am pushing it in... the wrench won't grip unless I do, but good point...

    And I have another "loosener" soaking into it right now...
     
  15. cyrsequipment

    cyrsequipment Angry

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    :rofl:

    Yes, I have... I would post a picture if I knew how to post one directly to this site.
     
  16. cyrsequipment

    cyrsequipment Angry

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    I did have it on the lower... but since the lower is a registered lower... I took it off...

    I don't have a proper action block, but I have a soft one Gerry-rigged in my vice so it doesn't damage the upper.

    I tried to attach a longer bar, but with having to pres down on the spring, I can't get much leverage with it....


    I REALLY appreciate all the advice, and don't worry about offending me with questions about my common sense... My experience with ARs rather limited, give me a Glock and I can tear them apart in my sleep, but I've had a lot of practice with that system:embarassed:
     
  17. Jeff82

    Jeff82 NRA Benefactor CLM

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    Best thing you can do is get a longer lever arm. Get a breaker.
     
  18. internal

    internal

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    Some guys cut em off for this reason.
     
  19. cyrsequipment

    cyrsequipment Angry

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    Amen.. but I'm too poor to afford that...If I can't take it apart it isn't the end of the world, but I want to...
     
  20. cyrsequipment

    cyrsequipment Angry

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    I would tend to agree with you, but I've snapped lug wrenches in my time :cool:, and I don't want to do that to this thing, an upper is a bit more expensive than a lug wrench...

    I don't really think more power is the issue, I could torque the thing harder right now, but I'd rather not damage anything...