Seriously Tight Set Screws! - Mountain Buzz
 



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Old 05-30-2012   #1
 
Love2fish's Avatar
 
Boulder, Colorado
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Seriously Tight Set Screws!

I'm trying to take apart a frame I bought and a few of the the alum. set screws are incredibly tight. I have soaked them in penetrating oil and still, they won't budge. I have cranked on it with a socket wrench/ hex driver combo and finally tried an easy out. No luck. I guess the next step is drilling it out, but at that point, I've lost the fitting, right? These things must have been set with a pneumatic driver!
Any ideas out there?
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Old 05-30-2012   #2
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Penetrating grease doesn't work on aluminum. Use ammonia or water diluted drano.
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Old 05-30-2012   #3
 
Helena, Montana
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Really? Good to know.
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Old 05-30-2012   #4
 
Missoula, Montana
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you should be able to drill them out using a bit that won't quite reach the threads, then use the ez-out. this should cause what's left of the set screws to fall apart. if that doesn't work you could drill larger and tap the holes out for a larger set screw. get the tap first and use the recommended drill bit size.
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Old 05-30-2012   #5
 
Centennial, Colorado
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I use heat on steel, don't know if that would work with alum
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Old 05-30-2012   #6
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Quote:
Originally Posted by MountainMedic View Post
Really? Good to know.
It's one method used for stuck seat posts in bikes with aluminum frames/posts.
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Old 05-30-2012   #7
 
Carbondale, Colorado
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Freeze it. If you have a can of air to clean dust off your computer, invert it, soak the set screw and fitting surrounding it with the liquid that comes out the tube. Repeat. The rapid cooling and warming cycles often loosen up the nut - better than heat and you don't wind up with oil all over the place.
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Old 05-30-2012   #8
 
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can you drill it all the way through and use a bolt?
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Old 05-30-2012   #9
 
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My guess is that they aren't just tight, but probably corroded together. The ammonia or dilute drain cleaner might work, but be careful since these bases will dissolve aluminum.
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Old 05-30-2012   #10
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I used this bit on doors that I had t pull off on a hotel remodel, the best tool I have found yet to remove stripped screws, set screws etc: Aldens Grabit which can be found at www.aldn.com
Good Luck;

Christian
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