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Posted: 5/25/2006 8:04:09 AM EDT
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On my first build I went back recently and installed a YHM Specter length FF tube. When removing the original barrel nut it didn't come off to slick. Matter-of-fact, I started busting off teeth using my barrel nut wrench. I ended up resorting to a pipe wrench and got it off. Since I was using the YHM nut it wasn't that big a deal. Most recently, I did another build where I tightened the nut a little too far past the gas tube line-up point. When I tried to back it off a little there was no go. Again, started busting off teeth with my barrel wrench. I again resorted to the pipe wrench to loosen it up a tad. The barrel nut still works, just not as pretty with the handguards off. I'm guessing that I'm going a little too far with the torque. I didn't use a wrench, just did it by feel. On the next build I did I didn't try to over power things. Just snug and it was already pretty close to the gas tube line-up. I think my barrel nut wrench may be opening up a bit as well. With only three builds I wouldn't have thought it was ruined. I forget the make/model of the wrench, I got it from Brownellls. Any comments are welcome, Ranger413 |
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Less torque. Torque wrench would be helpful. Are you using the correct tighten twice before aligning the gas tube technique? Use anti-sieze/moly grease. Better wrench, for example, this one.  which contacts more teeth and won't slip. |
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I made sure that the threads were clean on both ends and then applied a touch of moly grease. I also tightened up the nut a little, backed 'er off, did that again, and then worked on lining up the next hole. I'm thinking my wrench may be the problem. I really like the looks of the DPMS wrench Gamma. I think I'll replace mine and see if that resolves the situation before my next build. Ranger413 |
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