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Posted: 10/12/2014 11:25:19 AM EDT
[#1]
No, it wont hurt it. However, you would be better off with a torch and slowly heating the area in question.
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Posted: 10/12/2014 11:25:24 AM EDT
[#2]
the reason you heat the parts is because it contracts and expands differently than the rest of the items you're trying to separate it from. if you heat all of the parts together they will expand and contract at the same rate and you will have accomplished nothing
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Posted: 10/12/2014 12:35:31 PM EDT
[#3]
Heat the gas block only then run cold water through the bore just before you tap off the gas block. It may just fall off at that point.
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Posted: 10/12/2014 2:22:47 PM EDT
[#4]
is the gas block pinned?
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Posted: 10/12/2014 4:59:30 PM EDT
[#5]
Quote HistoryQuoted:
Heat the gas block only then run cold water through the bore just before you tap off the gas block. It may just fall off at that point. +1 it does work been there done that. 
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Posted: 10/12/2014 6:08:18 PM EDT
[#6]
Quote HistoryQuoted:
is the gas block pinned? no, set screws came off fine but the actual gas block won't budge |
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Posted: 10/12/2014 9:59:26 PM EDT
[#7]
The set screws may have had red loctite on them and if too much was used perhaps it got between the barrel and the gas block. A little heat should help in a case like this.
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Posted: 10/12/2014 11:00:49 PM EDT
[#8]
It doesn't have to be a big torch. One that runs on small propane bottle that is generally used to do plumbing around the house is more than adequate.
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Posted: 10/17/2014 7:21:11 PM EDT
[#9]
Heat directly to the gas block is no issue. You will NOT want to heat the whole upper as there are springs on the dust cover and forward assist you may damage or reduce their tension from the heat.
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Posted: 10/17/2014 9:00:49 PM EDT
[#10]
You can probably heat it enough with a candle.
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Posted: 10/18/2014 7:47:08 AM EDT
[#11]
Quote HistoryQuoted:
You can probably heat it enough with a candle. Only do this if you want to clean up a sooty nasty mess, go to harbor freight and buy a cheap heat gun. |
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Posted: 10/18/2014 8:37:59 AM EDT
[#12]
Quote HistoryQuoted:
Only do this if you want to clean up a sooty nasty mess, go to harbor freight and buy a cheap heat gun. Quote HistoryQuoted:
Quoted:
You can probably heat it enough with a candle. Only do this if you want to clean up a sooty nasty mess, go to harbor freight and buy a cheap heat gun. i have a cheap little one i got at the craft store but you think that might just be enough? |
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Posted: 10/18/2014 8:38:31 AM EDT
[#13]
Quote HistoryQuoted:
Heat directly to the gas block is no issue. You will NOT want to heat the whole upper as there are springs on the dust cover and forward assist you may damage or reduce their tension from the heat. whoops...... they all appear and feel to still be working fine 
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Posted: 10/18/2014 8:39:22 AM EDT
[#14]
Quote HistoryQuoted:
The set screws may have had red loctite on them and if too much was used perhaps it got between the barrel and the gas block. A little heat should help in a case like this. thats my guess. i can see some "stuff" in the sockets. i can only assume its loctite or an equivalent |
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Posted: 10/18/2014 9:00:33 AM EDT
[#15]
Quoted:
Trying to get a gas block off. The thing won't budge. I heard heat will do the trick someone recommended an oven for 450° for about 20m in Assuming there are no plastic parts will this hurt my barrel/upper in any way? That temperature will break the temper (over age) the aluminum in the upper. Barrel steel should be fine. |
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Posted: 10/18/2014 9:22:10 AM EDT
[#16]
Quote HistoryQuoted:
That temperature will break the temper (over age) the aluminum in the upper. Barrel steel should be fine. Quote HistoryQuoted:
Quoted:
Trying to get a gas block off. The thing won't budge. I heard heat will do the trick someone recommended an oven for 450° for about 20m in Assuming there are no plastic parts will this hurt my barrel/upper in any way? That temperature will break the temper (over age) the aluminum in the upper. Barrel steel should be fine. so if i shot my upper it now that ive done that it could blow up? |
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Posted: 10/18/2014 10:41:40 AM EDT
[#17]
Red Loctite disintegrates at 500 degrees...heat the block tap it off......done deal.
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Posted: 10/19/2014 3:00:59 PM EDT
[#18]
At 450, you're getting into the heat range that is used to temper certain types of steel.
Don't know what affect it could have had on that aluminum upper, but if it was ONLY 20 minutes .... you might get lucky. If any of the metal is exposed (bare), you have to watch so that the material doesn't begin to change color from the heat. That would be a sign that the temper of the steel is being affected. I'd keep the heat under 400. |
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Posted: 10/19/2014 3:35:58 PM EDT
[#19]
Quote HistoryQuoted:
At 450, you're getting into the heat range that is used to temper certain types of steel. Don't know what affect it could have had on that aluminum upper, but if it was ONLY 20 minutes .... you might get lucky. If any of the metal is exposed (bare), you have to watch so that the material doesn't begin to change color from the heat. That would be a sign that the temper of the steel is being affected. I'd keep the heat under 400. so is it dangerous to shoot the upper now? |
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Posted: 10/19/2014 3:54:06 PM EDT
[#20]
probably have to set it up in a jig with a long string and hide behind a stump. Make sure you get a you tube video of it for us.
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Posted: 10/19/2014 4:02:09 PM EDT
[#21]
no ones answering my question...is it dangerous now that i put in the oven?
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Posted: 10/19/2014 4:05:06 PM EDT
[#22]
Quote HistoryQuoted: no ones answering my question...is it dangerous now that i put in the oven? nobody in the whole world has done it before.... How the hell do we know? I'd tie a string to the trigger and run a couple of mags first. |
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Posted: 10/19/2014 4:11:57 PM EDT
[#23]
Quote HistoryQuoted:
nobody in the whole world has done it before.... How the hell do we know? I'd tie a string to the trigger and run a couple of mags first. Quote HistoryQuoted:
Quoted:
no ones answering my question...is it dangerous now that i put in the oven? I'd tie a string to the trigger and run a couple of mags first. lol, i don't have access to it. i live the suburbs. range or get arrested 
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Posted: 10/19/2014 4:13:16 PM EDT
[#24]
Quote HistoryQuoted:
no ones answering my question...is it dangerous now that i put in the oven? It's fine. I've heated uppers to hotter than that to break down loctite that was on the barrel nut threads. |
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Posted: 10/19/2014 4:13:37 PM EDT
[#25]
Quote HistoryQuoted: lol, i don't have access to it. i live the suburbs. range or get arrested Quote HistoryQuoted: Quoted: Quoted: no ones answering my question...is it dangerous now that i put in the oven? I'd tie a string to the trigger and run a couple of mags first. lol, i don't have access to it. i live the suburbs. range or get arrested |
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Posted: 10/19/2014 4:14:36 PM EDT
[#26]
Quote HistoryQuoted:
philly or pgh? Quote HistoryQuoted:
Quoted:
Quoted:
Quoted:
no ones answering my question...is it dangerous now that i put in the oven? I'd tie a string to the trigger and run a couple of mags first. lol, i don't have access to it. i live the suburbs. range or get arrested north of philly, live in warminster |
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Posted: 10/19/2014 4:18:27 PM EDT
[#27]
pgh here, so no using my land for this epic you tube video. Good luck, but Josh is right... Its fine. |
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Posted: 10/19/2014 4:34:57 PM EDT
[#28]
Quote HistoryQuoted:
pgh here, so no using my land for this epic you tube video. Good luck, but Josh is right... Its fine. im terrible at figuring tone though text. so srs fine? |
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Posted: 10/19/2014 4:39:25 PM EDT
[#29]
Quote HistoryQuoted: im terrible at figuring tone though text. so srs fine? Quote HistoryQuoted: Quoted: pgh here, so no using my land for this epic you tube video. Good luck, but Josh is right... Its fine. im terrible at figuring tone though text. so srs fine? |
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Posted: 10/19/2014 4:48:21 PM EDT
[#30]
Quote HistoryQuoted:
define srs fine. Quote HistoryQuoted:
Quoted:
Quoted:
pgh here, so no using my land for this epic you tube video. Good luck, but Josh is right... Its fine. im terrible at figuring tone though text. so srs fine? lol,, sorry i use gym brah slang sometimes seriously fine? or sarcastic fine? |
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Posted: 10/19/2014 5:44:04 PM EDT
[#31]
You are not going to harm 7075 aluminum, 4100 series steel, or 416 stainless by soaking it at 450 for 20 minutes. Not even close to harming them.
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Posted: 10/19/2014 5:57:06 PM EDT
[#32]
Quote HistoryQuoted:
You are not going to harm 7075 aluminum, 4100 series steel, or 416 stainless by soaking it at 450 for 20 minutes. Not even close to harming them. thanks, thats what i figured, but some of the guys were starting to scare me |
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