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Joined: May 2012
Posts: 2,253
Campfire Regular
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Campfire Regular
Joined: May 2012
Posts: 2,253 |
We use CorrosionX in our shop. I have a gallon from cropdusting days, I would fog the inside of my new airtractor wings with it, fantastic on guns!very best WinPoor
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Joined: Feb 2010
Posts: 17,776
Campfire Ranger
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OP
Campfire Ranger
Joined: Feb 2010
Posts: 17,776 |
The screws are still stuck tight as ever, broke two screwdriver blades. I have tried several applications of Kroil, heat, ATF/acetone, tapped the screwdriver handle every kink suggested all to no avail. I'm going to heat them again after having been soaked overnight with ATF/acetone. Next step will be to try a hand impact driver the kind you use with a hammer, I'll have to grind a bit to fit. Stay tuned for progress report.
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Joined: May 2005
Posts: 54
Campfire Greenhorn
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Campfire Greenhorn
Joined: May 2005
Posts: 54 |
Get Roy Dunlap's book on gunsmithing. In it he describes both the paraffin tip as well as heating the part and dropping in a drop of mercury that will pulverize the screw and not damage the threads. Never had to use the mercury tip but have used the paraffin tip to great success.
Good Luck!
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Joined: Mar 2005
Posts: 4,999
Campfire Tracker
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Campfire Tracker
Joined: Mar 2005
Posts: 4,999 |
Access to mill or serious drill press? After heat/penetrating oil/impact hammer treatment, secure receiver squarely, with a vice that is bolted to the table. A correctly sized bit in the chuck. Firm downward pressure on the screw head and turn the chuck by hand.
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Joined: Feb 2010
Posts: 17,776
Campfire Ranger
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OP
Campfire Ranger
Joined: Feb 2010
Posts: 17,776 |
No longer have access to a mill or drill press, I have used your tip many times in a 40 yr. career as a Tool & Die Maker.
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Joined: May 2005
Posts: 16,554
Campfire Ranger
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Campfire Ranger
Joined: May 2005
Posts: 16,554 |
Oops, just said what Carbon said, and you don't need that great of a drill press (like mine). Guaranteed something's gonna give, maybe half the head of the screw at the slot. But then I've never gotten along well with hand impact drivers.
Last edited by nighthawk; 07/01/15.
The key elements in human thinking are not numbers but labels of fuzzy sets. -- L. Zadeh
Which explains a lot.
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Joined: Dec 2002
Posts: 13,087
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2002
Posts: 13,087 |
Mouse milk is really good but if this much Kroil application hasn't fixed it, you are going to need heat or a mill.
NRA Benefactor Member
Those who live by the sword get shot by those who don't.
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Joined: Dec 2004
Posts: 10,344
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2004
Posts: 10,344 |
We use CorrosionX in our shop. I have a gallon from cropdusting days, I would fog the inside of my new airtractor wings with it, fantastic on guns!very best WinPoor Like a Leland Snow Air Tractor?
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Joined: Dec 2002
Posts: 13,087
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2002
Posts: 13,087 |
Corrosion X makes about a dozen products. The one that is PMAd for aircraft is probably not the one to use for guns. I use the stuff specifically sold for guns. It is a green color.
Corrosion on aircraft skin is not a big problem in the Arizona desert! Probably why we have so many aircraft boneyards!
NRA Benefactor Member
Those who live by the sword get shot by those who don't.
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