Torque Cars

Removing a siezed bolt

Discussion in 'Tools & Garage' started by obi_waynne, 1 February 2011.

  1. obi_waynne

    obi_waynne Administrator Staff Member Moderator

    Messages:
    41,326
    From:
    Deal, Kent UK
    Car:
    A3 1.4 TFSI 150 COD
    Any tips for removing a bolt that has siezed up and the thread around it has burred away?
     
  2. ronniecalcutta

    ronniecalcutta Road Burner

    Messages:
    351
    From:
    India, Kolkata
    Car:
    Hyundai Accent
    Maybe inserting a reverse direction screw into that bolt with the help of a thread cutter would take it out, or I think it'll be easier to drill a hole & push that bolt out & then insert a 'thread insert' or install oversize bolts....
     
  3. bigbadjoe

    bigbadjoe Pro Tuner

    Messages:
    2,968
    From:
    Elgin - Scotland
    Car:
    Evo 8 @ 400bhp
    I have a tool that will remove that. Its one that you hit with a hammer and it will burry its self into the screw and remove it buy turning the way the thread should come out. I had to use it on a waste gate for my old escort. The thing had been heated up and cooled so many times the bolts we just solid and fixed in.

    All you do is plaster it in WD40 for a few days, then use this tool and it will take a bit of power and time, but will come out.

    Ill send it you down if you cant get hold of anything. Just give us your address and I'll pop it in the post.
     
  4. old-git

    old-git Moderator

    Messages:
    9,182
    From:
    Essex
    Car:
    Elan & Robin Hood
    Can't quite visualise the problem. A bolt will be either wound into a threaded hole or be secured by a nut. These will require different methods to remove. Which one are we talking about here?
     
  5. jarrus

    jarrus Pro Tuner

    Messages:
    3,501
    From:
    West Midlands, UK
    Car:
    Suzuki Swift Sport
    Lets say both mate,

    I tend to soak the affending bolt in WD40 then come back to it, strain my nuts of trying the undo it, swear repeatedly at it while staining some more, then get the grinder out....
     
  6. bigbadjoe

    bigbadjoe Pro Tuner

    Messages:
    2,968
    From:
    Elgin - Scotland
    Car:
    Evo 8 @ 400bhp
    :D That used to be my option untill my mate passed me in my garage and saw my vein poping out at the side of my head. Then he gave me his spare extractor and it works a treat every time. OG has a point though, I don't know if it will work if there is no thread on the bolt. I have always used it on threaded bolts.
     
  7. old-git

    old-git Moderator

    Messages:
    9,182
    From:
    Essex
    Car:
    Elan & Robin Hood
    More importantly, why is it always the last one to be undone? 16 nuts holding the manifold on and it's the last one (that is also the most awkward one to get to) that is seized! :)
     
  8. bigbadjoe

    bigbadjoe Pro Tuner

    Messages:
    2,968
    From:
    Elgin - Scotland
    Car:
    Evo 8 @ 400bhp
    That is the Law of King Sod. Like when I made my bed up, why was the last balt, the hardest to get to, and why had they not pre drilled that last hole! Had to take the whole thing appart to drill it my self! :(
     
  9. sitdox

    sitdox Full member

    Messages:
    18
    From:
    sitdox
    Car:
    impreza 1.8gl 4wd
    sometimes mig welder helps to weld a nut on it in same way heats up the bolt and loosens the rust it depends on situation if the seized bolt in the cast iron can be blown (melted with gas welder/cutter there's so many ways to get the buggers out
     
  10. jarrus

    jarrus Pro Tuner

    Messages:
    3,501
    From:
    West Midlands, UK
    Car:
    Suzuki Swift Sport
    How about when you have a bolt siezed in cast aluminium?
     
  11. sitdox

    sitdox Full member

    Messages:
    18
    From:
    sitdox
    Car:
    impreza 1.8gl 4wd
    that's a real bugger I would try drill a small hole trough center of a bolt all the way and then step by step with bigger drill bit up till it reaches internal diameter of a thread then carefully would use the right size/thread tap to remove the left overs of a bolt or otherwise use the thread repair kit (those isn't pricey) if situation allows that only suggestions as said depending on the situation and possibilities.....
    regards
     
  12. sitdox

    sitdox Full member

    Messages:
    18
    From:
    sitdox
    Car:
    impreza 1.8gl 4wd
    hard to say without seeing it
     
  13. jarrus

    jarrus Pro Tuner

    Messages:
    3,501
    From:
    West Midlands, UK
    Car:
    Suzuki Swift Sport
    Yeah I know,

    A steel bolt thoughin cast aluminium thats a real pain,
     
  14. sitdox

    sitdox Full member

    Messages:
    18
    From:
    sitdox
    Car:
    impreza 1.8gl 4wd
    I wish you a luck and after a pain there's always bit of little pleasure
     
  15. picassoonwheels

    picassoonwheels Road Burner

    Messages:
    257
    From:
    India New Delhi/ Mumbai
    Car:
    ZenVXI'04/SX4ZXI'09
    Ok So this is what I would do:

    Weld a purchase onto the head of the bolt, so that you can use this to turn the bolt to unscrew it.

    With a hack-saw blade or a small drill, try creating a gap between the head of the bolt and the plate it is anchoring.

    Wrap some cotton-waste around the head, leaving a little gap where you have worked with the blade or drill.

    Now with a dropper, slowly drop 'CLR", if you can lay your hands on some,onto the gap.

    Alternatively you could also use a strong oven- cleaner, or some drain-cleaner, till it starts to drip over after soaking the cotton.

    Leave it for about 10-30 mins and then give the head of the bolt some smart taps with a hammer.

    Then gently unscrew the bolt using the welded piece of metal, making sure your fingers are crossed.............;)

    If it does not work on the first attempt, wash the cleanser out with haot water and repeat. the acid will slowly seep into the threads and work on the rust before it starts attacking the healthy metal, because the rust and calcium deposit there have a lower density than the metal, and are usually porous as compared to the ok metal.


    Best of Luck!
     
    Last edited: 14 February 2011
  16. sitdox

    sitdox Full member

    Messages:
    18
    From:
    sitdox
    Car:
    impreza 1.8gl 4wd
    yex a good idea in the same way bolt gets heated which in same way will loosen a rust but make sure while weld apply as much heat as you can to the bolt and immediately put cold water and if possible repeat the procedure and few good hits with the hammer
    best of luck
     
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