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Posted: 7/25/2009 2:07:36 AM EDT
The treads on my reciever let go ( just a smooth hole now). what do you do to fix it. Mine let go after a 1/4 turn on the mounting bolt
no gunsmiths in my area, and hesitant to take it to a machine shop...and a helicoil was suggested  (not sure I want to try that)
suggestion/ideas very welcome.... thank guys. Joel |
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I would suggest you start with Repair Tap, #12-32 UNEF - Special Thread (For rethreading severally damaged left-side receiver threaded hole. Heat-treated plug-style tap used when the receiver threaded hole requires more than a Thread Chase Tool )
You can call Sadlak Industries for one of these. |
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Quoted:
I'm not sure the details but hopefully the OP can fill us in. Suffice to say 2 things your should ever do is over torque the scope mount bolt and never use a USGI length scope mount bolt in an M1A unless your mount has been properly machined thinner. I was using an A.R.M.S #18 mount. was following the guidline for torque on the mount bolt I thought it seemed awful high. turned out to be a bit..... Much. 90 to 100 inch-pounds, as I said I got a bout a 1/4 turn just when is started to feel snug then it went soft quick.. I thought about having it tig'd drill an tap I want to let member weight their ideas/opinions so I dont mess my rifle up any farther.. all suggestions/ideas are appreciated.. Joel |
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Quoted:
Quoted:
I'm not sure the details but hopefully the OP can fill us in. Suffice to say 2 things your should ever do is over torque the scope mount bolt and never use a USGI length scope mount bolt in an M1A unless your mount has been properly machined thinner. I was using an A.R.M.S #18 mount. was following the guidline for torque on the mount bolt I thought it seemed awful high. turned out to be a bit..... Much. 90 to 100 inch-pounds, as I said I got a bout a 1/4 turn just when is started to feel snug then it went soft quick.. I thought about having it tig'd drill an tap I want to let member weight their ideas/opinions so I dont mess my rifle up any farther.. all suggestions/ideas are appreciated.. Joel On the three point scope mounts, 70 in-lb of torque is all you need for the receiver mounting bolt. That's advice from Shooter's Den and SEI, not me. Were you using a in-lb torque wrench when you were installing the A.R.M.S. # 18 scope mount? |
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