Gas tube removal problems

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[ARCHIVED THREAD] - Gas tube removal problems

Posted: 9/24/2004 4:05:53 PM EDT

I'm right in the middle of replacing my M4gery barrel with an evil threaded barrel complete with flash hider and bayo lug. I have the upper removed from the lower. The hand guards removed. The gas tube retaining pin carefully tapped out of the front sight base/gas block, mindfull to the narrow and wide ends of the retaining pin hole.

But the gas tube is still stuck in the gas block and I can't seem to get it out. What should I try, more force?

Posted: 9/24/2004 4:16:52 PM EDT

[#1]

wrap it with a rag, put gentle pressure on the tube with a pair of pliers..................tap the pliers with a small hammer

Posted: 9/24/2004 4:17:35 PM EDT

[#2]

I usually take a pair of vice-grips and adjust them to get a decent grip on the tube, but not tight enough to damage the tube. I then twist the tube back and forth a couple of times. After that, I tap on the vice-grips with a mallet until the tube comes out.

Posted: 9/24/2004 4:19:22 PM EDT

[#3]

or oxy acetylene......................

Posted: 9/24/2004 4:19:57 PM EDT

[#4]

Wow there are narrow and wide ends of the retaining pin hole???

Posted: 9/24/2004 4:20:51 PM EDT

[#5]

I had the same problem. I put the gas tube(covered with cloth) in a vise, and gave the butt of my rifle a good and sharp hi,t and it came right out. But be careful. Its easy to scratch your barrel and other parts this way.

Posted: 9/24/2004 4:25:33 PM EDT

[#6]

Quoted:
Wow there are narrow and wide ends of the retaining pin hole???

i don't remember there being, i thought it was just a roll pin and not a tapered pin

Posted: 9/24/2004 4:29:06 PM EDT

[#7]

Heat the front site post with a propane torch for about a minute. Carefully twist the tube back and forth, gripping it as close to the post as possible. After it's loose, it'll pull straight out.

Use a little anti-seize compound during re-assembly.

Posted: 9/24/2004 4:36:17 PM EDT

[#8]

Quoted:
Heat the front site post with a God's Gas torch for about a minute. Carefully twist the tube back and forth, gripping it as close to the post as possible. After it's loose, it'll pull straight out.

Use a little anti-seize compound during re-assembly.

Posted: 9/24/2004 4:42:55 PM EDT

[#9]

Stand the barrel on its muzzle. Put just a bit of Kroil, or some other penetrating oil on the gas tube where it goes into the gas block. It may take a while to get in there. A pair of rubber jawed pliers are nice for this job.

Posted: 9/24/2004 4:49:46 PM EDT

[#10]

Quoted:
Quoted:
Wow there are narrow and wide ends of the retaining pin hole???

i don't remember there being, i thought it was just a roll pin and not a tapered pin

Not tapered, 5/64" X 5/16" rollpin.

Posted: 9/24/2004 4:50:54 PM EDT

[#11]

Just had a sticky one this afternoon, roll pins are the same size on either end.

Pliers and a tap with a tack hammer did the trick.

A little Kroil soaked into around the tube to FSB connection might make disassembly easier.

Danny

Posted: 9/24/2004 4:50:58 PM EDT

[#12]

Geez--this is like "down." Down is easy, you can FALL down. In this case, removal is easy--get a bigger hammer.

Posted: 9/25/2004 4:09:12 AM EDT

[#13]

Thanks! Got it unstuck

Posted: 9/25/2004 4:12:24 AM EDT

[#14]

Quoted:

But the gas tube is still stuck in the gas block and I can't seem to get it out. What should I try, more force?

Get a bigger hammer.

[ARCHIVED THREAD] - Gas tube removal problems

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