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Old 04-21-2017, 10:27 AM
arkrunner
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Help with removing loctite screws



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Bought a nice kimber hs but scope base screws will not budge. Any suggestions. Maybe loctited before I bought?
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Old 04-21-2017, 10:33 AM
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Acetone might work or use a soldering iron or a heat gun.
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Old 04-21-2017, 10:38 AM
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200 * f should release locktite.

David

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Old 04-21-2017, 11:41 AM
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At the hydraulics machine shop, on small locktited parts we found if we could get the part hot enough to melt Bees Wax into it, the screws most always come out.
The Bees Wax instantly releases Locktite if it can be melted into the joint. One way to avoid heating the part to higher temperatures.
Paraffin wax can be used, but is less effective.
Good luck with that, we make good money extracting fasteners with broken off easy outs in them.
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Old 04-21-2017, 02:44 PM
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Quote:
Originally Posted by david_root2000 View Post
200 * f should release locktite.

David

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Hope they didn't use red. You'll need 500 degrees for that.
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Old 04-21-2017, 02:51 PM
GH41

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Quote:
Originally Posted by donie View Post
At the hydraulics machine shop, on small locktited parts we found if we could get the part hot enough to melt Bees Wax into it, the screws most always come out.
The Bees Wax instantly releases Locktite if it can be melted into the joint. One way to avoid heating the part to higher temperatures.
Paraffin wax can be used, but is less effective.
Good luck with that, we make good money extracting fasteners with broken off easy outs in them.
I'll have to try bee's wax. Never heard that one before. I read that antifreeze will dissolve locktite but never tried it.
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Old 04-21-2017, 03:16 PM
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Quote from a well respected gunsmith and machinist... Longrifles inc.

"Ok, write this down: DO NOT USE OPEN FLAME. No, no, no.

That's blacksmithing, not gunsmithing.

If you need heat for a gun you have two principle choices: Hot air or magnetic induction. Open flame kills surface finish and opens the door for oxygen/hydrogen embrittlement. That is not a trivial term. It matters.

A high wattage hot air gun will deliver approximately 1000F temp air. More than sufficient to warm up a part for breaking down thread lockers. An even better way is to boil your part in automotive antifreeze. Locktite is a sugar for all intensive purposes. Under pressure it forms a crystal that expands. That's where the "stick" comes from. Glycol antifreeze is also a sugar and when heated above 220F it'll draw into tight spots via capillary action very well. It'll also break down the locktite. The added plus is glycol is slimy by nature so it's a lubricant as well.

No harm to anything. If it'll run in your engine for 100K+ miles without burning a hole in your car your rifle will be just fine"
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Old 04-21-2017, 03:19 PM
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Use a soldering iron. Hold the tip to the screw and heat it up.
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  #9  
Old 04-21-2017, 05:45 PM
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Originally Posted by GH41 View Post
I'll have to try bee's wax. Never heard that one before. I read that antifreeze will dissolve locktite but never tried it.
Not many will bother.
Also, Not good to get Loctite on your skin, its solvent base is the mostly banned 111trichorowhatever. The brands primer solvent is very hard to obtain.
It doesn't take much on your skin before you can taste it, the solvent penetrates quickly.
We buy that stuff in the big bottles.
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Old 04-21-2017, 06:00 PM
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Use a soldering iron. Hold the tip to the screw and heat it up.
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