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Posted: 8/13/2005 1:47:26 PM EDT
Hi guys, I have installed barrels before and never had a problem. On this particular barrel, I cannot get it installed to where the gas tube can be inserted and the barrel remains tight on the receiver. The best I can get it is almost hand tight, where the barrel moves inside the upper slightly. If I try to tighten it more I have to push very hard and even then the nut goes just far enough to where a tooth is blocking the gas tube hole.
 Any help is much appreciated!!
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Posted: 8/14/2005 9:32:53 AM EDT
[#1]
No one has encountered this before huh? Maybe I should replace the barrel nut.
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Posted: 8/14/2005 10:46:31 AM EDT
[#2]
The advice I've heard before is to tighten and loosen a few times and see if you can get to the next hole.
Did you lube up the threads prior to installing the barrel nut?? |
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Posted: 8/14/2005 10:58:41 AM EDT
[#3]
Thanks for the help, I use regular moly grease every time. I guess ill keep trying, but the force I would need to get it there would definitely be out of torque spec.
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Posted: 8/14/2005 12:28:58 PM EDT
[#4]
Your only choice is to use moly lube on the threads, tighten and loosen a few times, torque to 30#, then tighten however much more you need to align a notch in the barrel nut for the gas tube. If the torque exceeds the maximum, so be it, as you've done everything that you can.
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Posted: 8/14/2005 8:24:40 PM EDT
[#5]
Do Not under estimate the magic of "loosening and tightening". Each time you loosen-and-tighten to your desired torque value, you are lapping the threads. This will causes the notch to evientally be aligned.
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Posted: 8/15/2005 3:38:35 AM EDT
[#6]
+1 for tighten and loosen until it lines up, always worked in the past on thousands of builds. lube heavily.
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Posted: 8/16/2005 4:27:20 AM EDT
[#7]
Walmart has Moly based grease for $1.50/tube. It's pitch black, smells nasty, but it's really slick stuff.
Apply lots of it to the threads, use an action block, good wrench, and a large breaker bar to turn that nut. I didn't have to tighten/back off. I directly torqued to 40 ft-lb and then turned until the notch lined up. |
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Posted: 8/22/2005 10:00:49 PM EDT
[#8]
Keep tourqing to 30 and remove. Do this several times. It should be fine after that, I had to do this to get my gas tube to align properly in the receiver. I just hope it works fine at the range.
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