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Extracting Broken Bolts, Studs, Extractors, Drill bits, and Taps
Extracting Broken Bolts and Studs
http://www.dimebank.com/tech/BrokenBolt.html The Art of Extraction http://www.asashop.org/autoinc/may2003/techtotech.htm Extracting A Broken Bolt Or Screw http://www.amazines.com/Construction/article_detail.cfm/307403?articleid=307403 Removing broken bolts with stick welder http://weldingweb.com/archive/index.php/t-7834.html Here's a guide to un-sticking stuck fasteners. http://www.motorcycle.com/how-to/how-to-extract-stuck-screws-3440.html remove broken tap drill or stud http://brokentap.blogspot.com/ Note: In some areas there are specialty shops that do this for you. Example: http://www.brokentap.com/services.html Last edited by whunter; 03-11-2009 at 05:26 PM. |
#2
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Good data
Knowing how to remove broken fasteners, extractors and/or drills, before it happens, can make this a none issue.
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#3
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Loosening rusted bolts and nuts
In an email from my brother:
You guys may be interested in some interesting information that I found in the Studebaker Drivers Club rag. They gleaned it from another magazine, the Machinist's Workshop rag. It has to do with loosening of rusted bolts, and penetrants contribution to that effort. It was from an experiment repeated many times, them averaging the results for each penetrant. Every effort was made to ensure evenness in the rusting. Penetrant Average Torque None 516 lbs WD40 238 lbs PB Blaster 214 lbs Liquid Wrench 127 lbs Kano Kroil 106 lbs ATF-Acetone mix 53 lbs It would appear that WD40 and PB Blaster aren't nearly as effective as liquid wrench or Kano Kroil, but the home-brew mix of ATF and Acetone is a real winner.
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Richard Wooldridge '01 ML320 '82 300D 4.3L V6/T700R4 conversion '82 380SL, '86 560SL engine/trans. installed '79 450SL, digital servo update '75 280C Last edited by whunter; 08-22-2009 at 02:58 PM. Reason: spelling |
#4
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from the source
Quote:
Significant results! They are below, as forwarded by an ex-student and professional machinist, Bud Baker. *Don't forget the April 2007 "Machinist's Workshop" magazine comparison test.* ** *They arranged a subjective test of all the popular penetrants with the control being the torque required to remove the nut from a "scientifically rusted" environment. * ** *Penetrating oil ..... Average load* None ...................... 516 pounds WD-40 ................... 238 pounds PB Blaster .............. 214 pounds Liquid Wrench ........ 127 pounds Kano Kroil .............. 106 pounds ATF-Acetone mix.......53 pounds *The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic transmission fluid and acetone.* *Note the "home brew" was better than any commercial product in this one particular test. Our local machinist group mixed up a batch and we all now use it with equally good results. Note also that "Liquid Wrench" is about as good as "Kroil" for about 20% of the price. * ** *Your experience may vary, etc., etc.* |
#5
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Can't wait for them to check Deep Creep.
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83 SD 84 CD |
#6
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I'll agree with the acetone, ATF (and old brake fluid) too
I knocked apart (removed pistons) an engine with this. |
#7
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Left-Hand Drill Bit Set
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#8
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Bump
for customer
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/ |
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