** carbine buffer tube install questions ** - Page 1

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[ARCHIVED THREAD] - ** carbine buffer tube install questions **

Posted: 11/20/2018 8:32:18 PM EDT

Hi
I don’t have a ip torque wrench
For the 38-42 specs
Nor do I want to try to stake myself

Any suggestions?
Loctite ? I saw 242 on one video but
I was thinking blue if at all or
Just pretty snug?

Any recommendations on a quality carbine
6 pos tube? Mil spec

Thnx guys!

Posted: 11/20/2018 8:42:18 PM EDT

[#1]

Put it on "Pretty Tight", then get you a punch and stake it your self.

Using the above method on a couple dozen hard-use carbines, never had one come loose.

Posted: 11/20/2018 9:09:57 PM EDT

[#2]

Put some ass behind it and stake it or blue Loctite or Rocksett.

Posted: 12/5/2018 8:19:35 PM EDT

[#3]

I usually use Vltor buffer tubes one of the best IMHO.

Posted: 12/5/2018 10:01:14 PM EDT

[#4]

An automatic center-punch is fairly fool-proof. Start just a little inward (toward the notch in the castle nut) and punch. Then angle towards muzzle about 15-degrees and punch. Repeat 2-3 more times at a slightly increasing angle to continue displacing metal towards & into the notch. Call it good!

ETA: If the punch is adjustable, check beforehand...to much pressure will still work but may not gouging a bit.

Posted: 12/5/2018 10:04:42 PM EDT

[#5]

Quoted:

Nor do I want to try to stake myself

View Quote

Posted: 12/5/2018 10:07:28 PM EDT

[#6]

Blue loctite and tighten the castle nut until it's good and tight.

Posted: 12/5/2018 10:55:37 PM EDT

[#7]

Loctite will flow through the threads and into the buffer retainer, locking it in place. Have seen it a number of times.

Posted: 12/5/2018 11:14:21 PM EDT

[#8]

Quote History

Quoted:
Loctite ~~will~~ CAN flow through the threads and into the buffer retainer, locking it in place. Have seen it a number of times.

View Quote

Fixed.

Posted: 12/6/2018 12:56:31 AM EDT

[#9]

Quote History

Quoted:
Loctite will flow through the threads and into the buffer retainer, locking it in place. Have seen it a number of times.

View Quote

I have done a lot of them over the years with a little dab of loctite and never had that happen, when you are using LT, you don't need to use a lot of it, just a small dab, let it firm up for a couple of minutes and assemble.

Posted: 12/13/2018 5:00:23 PM EDT

[#10]

The spec in later TM revisions is ft/lbs not in/lbs.

Posted: 12/13/2018 7:15:37 PM EDT

[#11]

Quote History

Quoted:
The spec in later TM revisions is ft/lbs not in/lbs.

View Quote

Funny how no one addressed that part of the OP.

Posted: 12/13/2018 8:42:51 PM EDT

[#12]

Quote History

Quoted:
Funny how no one addressed that part of the OP.

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:
The spec in later TM revisions is ft/lbs not in/lbs.

Funny how no one addressed that part of the OP.

Posted: 12/13/2018 10:26:09 PM EDT

[#13]

Quoted:
Hi
I don’t have a ip torque wrench
For the 38-42 specs
Nor do I want to try to stake myself

Any suggestions?
Loctite ? I saw 242 on one video but
I was thinking blue if at all or
Just pretty snug?

Any recommendations on a quality carbine
6 pos tube? Mil spec

Thnx guys!

View Quote

You're overthinking it. Torque it reasonably tight and don't worry about staking, it's not really necessary...

Posted: 12/14/2018 7:15:22 AM EDT

[#14]

Quote History

Quoted:
Put it on "Pretty Tight", then get you a punch and stake it your self.

Using the above method on a couple dozen hard-use carbines, never had one come loose.

View Quote

^^^ This^^^

Posted: 12/14/2018 8:50:09 AM EDT

[#15]

Quote History

Quoted:
The spec in later TM revisions is ft/lbs not in/lbs.

View Quote

The up to date Colt armorer assembly manual from the Canadian division was still posted online through the official Colt website as of last year. It still called for inft/lb spec. I can't recall the exact number but it wasn't much.

EDIT: Typo, my apologies

Posted: 12/14/2018 10:39:10 AM EDT

[#16]

Quoted:

The up to date Colt armorer assembly manual from the candian division was still posted online through the official Colt website as of last year. It still called for in/lb spec. I can't recall the exact number but it wasn't much.

View Quote

The Colt Canada manual has always said FT pounds. I used to post a link to it when posters wanted to argue the inch pound was correct.

http://coltcanada.com/assets/10044s-2005-09-20.pdf

Same manual that has been up on the website for many years.
I probably tighten the knob on my carry handle sight tighter than 40 inch pounds with 2 fingers.

Posted: 12/14/2018 2:51:58 PM EDT

[#17]

Good and tight and just a paint mark.

If it starts to back off you will see...but it won't.

Posted: 12/14/2018 2:56:37 PM EDT

[#18]

get a PWS Ratchet endplate and castle nut.

Posted: 12/14/2018 3:05:37 PM EDT

[#19]

Quoted:
Hi
I don’t have a ip torque wrench
For the 38-42 specs
Nor do I want to try to stake myself

Any suggestions?
Loctite ? I saw 242 on one video but
I was thinking blue if at all or
Just pretty snug?

Any recommendations on a quality carbine
6 pos tube? Mil spec

Thnx guys!

View Quote

Torque, how does it work?!?

Grab your action wrench about 12” from the nut’s axis of rotation. Apply about 40 pounds of force directly perpendicular to the wrench. If you can’t get 12” away, the relationship is proportional. 80 pounds of force 6” away, 60 pounds of force 9” away, 20 pounds of force 24” away, etc...

If none of that made sense, go relearn basic algebra.

If you don’t know what 40 pounds feels like, put down the keyboard and lift more weights.

I’ve blue loctited a couple castle nuts and they NEVER came off. Just use a few dots of loctite on the RE external threads and the receive rinternal threads. It’ll never come off. Personally, I stake AND loctite my castle nuts.

Posted: 12/14/2018 3:58:06 PM EDT

[#20]

Quote History

Quoted:

The Colt Canada manual has always said FT pounds. I used to post a link to it when posters wanted to argue the inch pound was correct.

http://coltcanada.com/assets/10044s-2005-09-20.pdf

Same manual that has been up on the website for many years.
I probably tighten the knob on my carry handle sight tighter than 40 inch pounds with 2 fingers.

View Quote

My apologies, that was a typo. I meant to say ft/lbs

Posted: 12/14/2018 6:02:19 PM EDT

[#21]

It's New Jersey, they may have torque wrench weight restrictions or a special permit to possess one.

Seriously OP, if you don't want to stake, the paint line is good peace of mind.

Posted: 12/14/2018 6:34:02 PM EDT

[#22]

I never staked any of mine and none have come loose. I never used a torque wrench on the castle nut and never thought about using one until now.

Posted: 12/14/2018 6:42:53 PM EDT

[#23]

Quote History

Quoted:
I never staked any of mine and none have come loose. I never used a torque wrench on the castle nut and never thought about using one until now.

View Quote

This ^^^

Posted: 12/15/2018 9:59:02 AM EDT

[#24]

Quote History

Quoted:

The Colt Canada manual has always said FT pounds. I used to post a link to it when posters wanted to argue the inch pound was correct.

http://coltcanada.com/assets/10044s-2005-09-20.pdf

Same manual that has been up on the website for many years.
I probably tighten the knob on my carry handle sight tighter than 40 inch pounds with 2 fingers.

View Quote

The original Colt's drawing specify foot-pounds as well.

[ARCHIVED THREAD] - ** carbine buffer tube install questions **

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