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Posted: 2/20/2009 12:40:33 PM EDT
| If I use this tool to tighten the barrel nut with torque wrench is there a multiplication factor I have to use to tighten it to correct value since the length of the arm is longer than attachment point where the socket is mounted? |
Read the 2nd sentence of paragraph 9
ETA: That procedure is written for the G.I. barrel wrench which can be bought here for $8.00 I am not sure how accurate the measurement may be with another style of wrench. |
| In aviation for torqing, anytime an adaptor (like your armorers wrench) is attached to a torque wrench, to get correct torque, your adaptor should be 90 degrees to the torque wrench to get a true indication. Imagine a capital letter L...the long side of the l is the torque wrench and the short side of the l is the adapter forming a 90 degree angle to what you are torquing. If you use it in a straight line, there is a torque formula: link you can use. If you do it like the picture in the previous post, you are probably overtorqueing by a few foot pounds. Guess tighter would be better than too loose. |
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Quoted:
In aviation for torqing, anytime an adaptor (like your armorers wrench) is attached to a torque wrench, to get correct torque, your adaptor should be 90 degrees to the torque wrench to get a true indication. Imagine a capital letter L...the long side of the l is the torque wrench and the short side of the l is the adapter forming a 90 degree angle to what you are torquing. If you use it in a straight line, there is a torque formula: link you can use. If you do it like the picture in the previous post, you are probably overtorqueing by a few foot pounds. Guess tighter would be better than too loose. It's an AR-15, not an aircraft, that is why I posted the picture of how the manual for the AR-15 says to do it. ETA: No matter how you look at it, with a torque range of 30 to 80, your not going to exceed 80 due to the barrel wrench being attached if your trying to hit 30. |
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With an AR, you are mostly worried about tightening to a Minimum of 30 ft-lbs, and then aligning the next gas tube notch. The torque is not to exceed 80 ft-lbs IIRC. You would really have to try to over-torque a barrel nut.
ETA: damn, nicholsmf beat me on the edit. |
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