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Posted: 11/16/2008 3:40:45 AM EDT
| With the peel washers, I just put it on then take one sliver off, try again and repeat? |
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Seems like it would be easier to buy a shim kit or something.
But to answer your question, yea I guess that's about right as long as you can make the surface true with the material removal. For me, lock nuts are the way to go it you have the room on the threads. Ron |
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With a peel washer you can try removing one section at a time or you can calculate how many degrees off it is and remove more than one at a time. If I remember right one segment equals 10 degrees. I will check when I get home later to verify that.
You can also use a crush washer but with those you have to be careful you don't go past where you need to stop at because if you do you will need a new washer since you will compress it too much. yep, 10 degrees http://primaryweapons.com/store/pc/documents/FSC556.pdf |
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Provided you've got a .223 with 1/2-28 threads: Each complete thread will move the muzzle device .0357" closer to the barrel shoulder. Divide .0357" into 12, the positions of the clock. That's .003". So if you're muzzle device is at 10 o'clock, and you want it at 12", remove about .004" from the back of the muzzle device with a belt sander, file, lathe, etc., snug it up and check your fit. You'll get about .002" thread crush typically, depending on the thread fit and how close to square the shoulder and muzzle device are. If you measure your peel washer - you can figure out where you need to be this same way. You'll be adding, not subtracting. |
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You'll notice that one of the faces of the crush washer is cut at a taper.
That portion of the washer compresses under pressure during the torquing process. 25 ft/lbs as I recall. I haven't torqued one since I quit using the washers and fit the device to the muzzle as I described. |
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Quoted:
With the peel washers, I just put it on then take one sliver off, try again and repeat? That’s all there is to it. Page 3-44. TM 9-1005-319-23 (2.6MB PDF) Unit And Direct Support Maintenance Manual M16A2, M4, M4A1 http://www.ar15.com/content/index.html#manuals |
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Quoted:
You'll notice that one of the faces of the crush washer is cut at a taper. That portion of the washer compresses under pressure during the torquing process. 25 ft/lbs as I recall. I haven't torqued one since I quit using the washers and fit the device to the muzzle as I described. not computing. can you use single syllables only? 
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I am trying to install an A2 hider right now, everytime I make contact with the crush washer, it is exactly indexed, where it should be. The only problem is I am just making contact and the the Hider is only finger tight. What do I do for this? Can I just put red loctite on it and forget it?
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Quoted:
I am trying to install an A2 hider right now, everytime I make contact with the crush washer, it is exactly indexed, where it should be. The only problem is I am just making contact and the the Hider is only finger tight. What do I do for this? Can I just put red loctite on it and forget it? Try tightening the FH and seeing how far you can get it to tighten. If you can make it 360 degrees around to index then your ok. If not, then you have two options: - Slightly “pre-crush” the washer in a vice. Go lightly, don't over do it. - Lap the face of the crush washer, periodically checking your progress. I’ll have to admit though, I’ve never run into a crush washer that started out at TDC. Is this washer used? ETA: Third option.......try a new washer. |
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Quoted:
Quoted:
I am trying to install an A2 hider right now, everytime I make contact with the crush washer, it is exactly indexed, where it should be. The only problem is I am just making contact and the the Hider is only finger tight. What do I do for this? Can I just put red loctite on it and forget it? Try tightening the FH and seeing how far you can get it to tighten. If you can make it 360 degrees around to index then your ok. If not, then you have two options: - Slightly “pre-crush” the washer in a vice. Go lightly, don't over do it. - Lap the face of the crush washer, periodically checking your progress. I’ll have to admit though, I’ve never run into a crush washer that started out at TDC. Is this washer used? ETA: Third option.......try a new washer. No washer was not used, I tried a different A2 and it contacted the crush washer at the entire other side so it was upside down instead of being correctly indexed when it first made contact. A little elbow grease and I got it snugged down correctly. 
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Dial-up is slow this morning.
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