Replacement Bolt Assembly |
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AJ Dragon
Groupie Joined: January 14 2016 Location: Wa. Status: Offline Points: 40 |
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Hi
Would this be the right gauge set to get? |
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17566 |
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Yes they'll work as well. The critical dimension is the 0.074".
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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AJ Dragon
Groupie Joined: January 14 2016 Location: Wa. Status: Offline Points: 40 |
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Hi
Well I got the bolt assembly in, and I seem to have a problem. I can put the bolt in, calk it and then rotate the assembly to lock it just fine but when I go to try and rotate it without it calking " it wont rotate. Would not having the trigger and trigger guard be the problem? |
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AJ Dragon
Groupie Joined: January 14 2016 Location: Wa. Status: Offline Points: 40 |
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Never mind I figured it out, every thing is nice and tight on the bolt assembly and the calking piece needed to be broken in. I just wasn't applying enough pressure to cause the calking piece to move backwards to allow the bolt assembly to rotate. On another note, only one locking lug is making contact with the bolt assembly fully locked and cocked. So the next step will be to get the gauges and stone so I can properly seat the bolt. The gauges were easy to find but I have know idea what to look for when it comes to the stone.
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Zed
Special Member Donating Member Joined: May 01 2012 Location: France Status: Offline Points: 5569 |
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Here is a link to one supplier for Arkansas stone. The triangular shape is good for this job. The one I have is square section; so I wrapped some thin tin can metal around the bolt next to the lug to avoid scuffing it. You need to get the very fine one and use oil with it. http://www.sharpeningsupplies.com/Triangle-Arkansas-File-P376C105.aspx The figure showing the lugs and receiver in an earlier post seems incorrect to me; the long lug is on the right hand side of the receiver when the bolt is closed and the short one is on the left hand side. You need to check that with your new bolt you have some margin to work with. Which is why the 3 gauge set is useful. Luckily for me the new bolt would not close on the 70 thou gauge by a reasonable margin, so with the Field gauge limit being 74 thou; I knew I had a couple of thou to work with; without getting too close to the Field limit. My original bolt would stop the on Field gauge about 2mm from full closure when measured at the wrist. Which was getting too close for comfort.
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It's nice to be important, but it's more important to be nice!
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17566 |
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If you pull the trigger & hold it (or push UP on the sear inside the receiver) as you close the bolt it wont cock.
The drawing of the bolt is correct, it just looks odd because of the angle & the fact the bolt handle is raised, turning the bolt body. |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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Zed
Special Member Donating Member Joined: May 01 2012 Location: France Status: Offline Points: 5569 |
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It was the description of lug A and B that appear to be inversed. The long lug is on the RH side when the bolt is closed.
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It's nice to be important, but it's more important to be nice!
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17566 |
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You're right, I was busy looking at the image & missed it.
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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AJ Dragon
Groupie Joined: January 14 2016 Location: Wa. Status: Offline Points: 40 |
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Hi
Thank you for the link and I will be getting the gauges next month along with the stone file.
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halsem
Newbie Joined: February 29 2016 Location: USA Status: Offline Points: 15 |
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I am also looking at headspace. I pull the trigger when closing the bolt to release tension on the bolt.
I fear that the tension to close the bolt, without doing this, would prevent me from feeling resistance on the gauge. Is there a problem with this approach? I a concerned because the bolt 'almost' closes on the field gauge.
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AJ Dragon
Groupie Joined: January 14 2016 Location: Wa. Status: Offline Points: 40 |
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Will this stone also work or is it too fine of a stone. |
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Zed
Special Member Donating Member Joined: May 01 2012 Location: France Status: Offline Points: 5569 |
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That's a similar type of stone to the one that I use. A very fine stone will give you a polished finish; and not remove too much !
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It's nice to be important, but it's more important to be nice!
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17566 |
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Probably fine, "slower finer & smoother" with minimum removal of material is the goal.
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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AJ Dragon
Groupie Joined: January 14 2016 Location: Wa. Status: Offline Points: 40 |
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Hi
I got the gauges today, I still need to get the file to seat the bolt properly but here are some pictures of the bolt fitment as is. With out any gauges. With Go gauge With No Go Gauge
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17566 |
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It looks to me like the rifle passes with the NO GO gauge?
Maybe its the angle of the picture though. |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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AJ Dragon
Groupie Joined: January 14 2016 Location: Wa. Status: Offline Points: 40 |
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Hi
I found this YouTube video showing how to use the gauges. |
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