Best way to remove stripped screws??? | FerrariChat

Best way to remove stripped screws???

Discussion in 'Technical Q&A' started by christopher, Mar 26, 2007.

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  1. christopher

    christopher Formula 3

    Nov 29, 2003
    1,136
    Ontario California
    Full Name:
    Christopher
    Greetings fellow "F"-Chatters,

    Can anyone advise me on the best way to remove stripped phillips head screws.

    The object is the shift gate on the shifter. The scress apparently were over tightened beyond spec., I've literaly stripped the phillips head.

    What I've done: Generously used PB-Blaster (overnight), used heat from a torch, taped screw with a hammer.........

    Any ideas would be appreciated.

    Thanks, Chris.
     
  2. 308tr6

    308tr6 Formula Junior

    Dec 23, 2003
    466
    SDakota
    Full Name:
    Rico
    Well, this isn't the daintiest method, but I butt weld a hex screw on to the top of it and put a socket on and twist it out.

    Philips screws should be banned from the face of the earth....
     
  3. starboy444

    starboy444 F1 Veteran

    Oct 7, 2006
    7,265
    Toronto, Canada
    Full Name:
    Lucas
    Best way is to grind the ends of the head (very carefully)to form a flat on each side (creating a new head). You can use a dremel tool or even a small file to do this. Then you can loosen the screws with a small "open" standard wrench or adjustable wrench.



    If all else fails, you will need to use an "easy-out" set, which can be bought at a local automotive supply shop, or machine shop supplier. This comprises of drilling a hole into the screw and inserting the "easy-out" bit into the hole, then unscrewing both the damaged screw and bit together....works 99% of the time.
     
  4. WaltP

    WaltP Formula 3

    Nov 1, 2003
    1,512
    Cape Canaveral/Atlanta
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    Walt P
    Left Hand Drill Bit

    Left Hand Heavy Duty, Surface Treated, Jobbers Length High Speed Steel Fractional Drill Bits

    Tip: If you use a left-hand bit to drill the hole in a broken screw or bolt so you can extract it, the odds are good that the very act of drilling will remove the broken screw without ever needing to use the extractor. Your drill must be running in reverse when you use left-hand bits.
     
  5. bill365

    bill365 F1 Rookie

    Nov 3, 2003
    3,319
    Chicago area
    Full Name:
    Bill
    If the head is not countersunk and
    1) you have the room to make even the slightest bit of a turn, you can try grabbing it with a small vise-grip.

    2) you don't have a lot of room around the screw, a large pair of side cutters, can sometime dig into the sides of the head sufficiently to twist it loose.

    3) Sometimes you can cut a slot in the head, with a dremel tool, or a hacksaw and use a standard driver.

    also Craftsman has a damaged screw extractor set that has worked for me before...

    http://www.sears.com/sr/javasr/product.do?BV_SessionID=@@@@0855754931.1174925076@@@@&BV_EngineID=ccehaddkhjehiigcefecemldffidfmg.0&pid=00952154000&cat=Hand+Tools,+General+Purpose&subcat=Bolt-Out,+Taps+%26+Dies&vertical=TOOL&ihtoken=1
     
  6. christopher

    christopher Formula 3

    Nov 29, 2003
    1,136
    Ontario California
    Full Name:
    Christopher
    Guys,

    Appreciate your inputs,

    Great ideas, I'll probably use a mixture!

    Thank you very much!

    Chris.
     
  7. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,053
    USA
    You don't want to damage the gate. The least risk would be to drill and use an "easy out" or screw extractor. I have never had much luck with trying to cut a new notch or flat into the screw, and here you definitely don't want to damage the gate.
     
  8. Kingair33

    Kingair33 Formula Junior

    Aug 28, 2006
    941
    San Francisco, CA
    Full Name:
    Alex
  9. mgtr1990

    mgtr1990 Formula 3

    Mar 30, 2005
    1,580
    Naples Florida
    Full Name:
    Martin Graham
    Ditto this approach as the cleanest method
     
  10. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,263
    Cowboy Capitol of the World
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    Brian Crall
    Nice part of a stripped head on a phillips screw is it makes it's own center. Those are 6mm so use that center for drilling and use a drill bit a little larger than 1/4 inch. Just drill down until the head falls off (will be easy), lift off the gate and twist the remains of the screw out with your fingers.

    An impact driver like Ferrardriver shows is great if there is some remaining slot of the original screw in place. Phillips screws are a great device to cause trouble for those that do not know how to tighten a fastener, for those that do they are great.
     
  11. smg2

    smg2 F1 World Champ
    Sponsor

    Apr 1, 2004
    16,404
    Dumpster Fire #31
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    SMG
    Right, the 'Phillips' screw is actually a Machine screw cross recess, now you know why it's called phillips!

    there are 3 classifications, Type I, IA, II each with varying depth, recess dia and width. this is also why you have 3 different sized screw drivers, most don't notice the difference and use the wrong the screwdriver and strip the recess. I prefer them to the slotted brethren.
     
  12. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,053
    USA
  13. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,263
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    Brian Crall
    You would not be hammering on the console. The screws go into the shift box. The shift box is bolted to the floor.
     
  14. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,053
    USA
    Ah, I see, thanks Brian!
     
  15. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,628
    San Carlos, CA
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    Mitchell Le
    I personally prefer the drill method, and then use an appropriate Sears extractor.
     
  16. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
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    +1
     
  17. noonblueapples

    noonblueapples Karting

    Dec 19, 2006
    196
    Mid Coast Maine
    Full Name:
    Peter Parker
    I have had luck using a drill bit just slightly smaller than the head. Drill a little at a time until you have removed the entire head. Once all screws are done and you can remove the object you will have a bit of screww sticking up to put vice grips on.
     
  18. Beta Scorpion

    Beta Scorpion Formula 3

    Jun 22, 2006
    1,379
    This post shows how I used a screw extractor to get the MOMO steering wheel screws out.
    http://www.ferrarichat.com/forum/showpost.php?p=136247322&postcount=177


    I can't recall offhand but if the screws are the same size as those on the steering wheel, using the screw extractor should be safe.

    I have two types of extractors. Sears sells some extractors that are square with 4 biting surfaces. I did not think those worked as well as the helicoid one pictured, which came from a hardware store.
     
  19. rustybits

    rustybits F1 Rookie
    Professional Ferrari Technician

    Jan 28, 2007
    2,509
    Somewhere, anywhere
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    Eddie B
    I would drill the head off it, and remove the rest later,

    1. you won't damage the (expensive) gate.

    2. the screws are countersunk, and if it's so tight the head is damaged, chances are you won't get it out with one of the above methods.

    3. it's likely the remains will unscrew by hand once the gate is off out of the way.
     
  20. Verell

    Verell F1 Veteran
    Consultant Owner

    May 5, 2001
    7,022
    Groton, MA
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    Verell Boaen
    I agree w/drilling the head off. Usually it's the head that's binding, not the threads.

    Also it gets the plated shift gate off so you can address the remainder of the screw.
     
  21. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
    18,221
    Twin Cities
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    Tim Keseluk
    #22 2NA, Mar 27, 2007
    Last edited by a moderator: Sep 7, 2017
    This stupid $25 tool will save you so much trouble! It should be standard equipment in every mechanics toolbox (cars & motorcycles). If you use it (before stripping the head) The screws will come right out, no damage.

    Getting the stripped screws out? Hmmmmmmm........ start slow, try the Sears screw removers, ............... then go to the left hand drill bits (start small, work up). Remove gate, try small vise grip.
    Image Unavailable, Please Login
     
  22. Jeff Pintler

    Jeff Pintler Formula Junior

    Jul 20, 2005
    537
    Richland
    Full Name:
    Jeff Pintler
    If there is a little bit of tooth in the phillips, sometimes you can use a dab of valve grinding paste or even a thick paste of comet abrasive cleaner and water to provide a slightly better grip. YMMV

    Jeff Pintler
    89 348tb, 86 tr
     
  23. christopher

    christopher Formula 3

    Nov 29, 2003
    1,136
    Ontario California
    Full Name:
    Christopher
    Hey Guys, I did it!

    I went out and purchased the Screw out / bolt out (from Sears), and got the Phillips head screw out!

    It actually worked! The best $40.00 I’ve ever spent, worked like a champ!

    Thank you for all that replied and your advice. Thank you very much.

    Chris.
     

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