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Author Subject: stuck 12mm bolt
monkeyman

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Location: Sunny St Albans

Registered: 01 Oct 2008

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Post #1
Ive got a stuck 12mm bolt I'm trying to free. An impact driver and socket has just rounded the bolt, I thought I was using a face grip socket, but it pushes itself away from the bolt as it turns, even with heavy leaning.
Ive cut a groove in it to use as a screwdriver head, but again no luck with impact driver.

any ideas or experience with these

Stud extractor not sure if there is enough room around the bolt head to use this.

another stud extractor not sure if this will grip a rounded bolt

bolt remover probably what I'll get unless there's any bad reviews

cheers

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Posted 9th Mar 2013 at 11:46
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coskev

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Location: Oswestry

Registered: 01 Nov 2009

Posts: 3,132

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Post #2
What is it holding on?Dunno

The only downside with snapped bolt removal tools is if they snap in the bolt you are right in the s**t thenYes

Can a nut be welded on the end of bolt?This works well as the heat from the weld travels down the bolt and helps release itWink

Or can the head of bolt be ground off with a angle grinder?
Then remove the item its holding and you can access the remaining part of the bolt left inYes

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Posted 9th Mar 2013 at 11:52
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dendle89

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Location: Cardiff

Registered: 29 Sep 2009

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Post #3
Hammer on a smaller socket ?

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Posted 9th Mar 2013 at 11:52
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coskev

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Location: Oswestry

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Post #4
Or try hammering on a Torx socketWink

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Posted 9th Mar 2013 at 11:54
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monkeyman

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Location: Sunny St Albans

Registered: 01 Oct 2008

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Post #5
The bolt is pretty soft so I may have to hammer a small socket on it, it joins an ali subframe to a steel mainframe with not much room around it so I dont think it will grind off without me cutting through some frame : (

I dont have any welding stuff but I think the bolt is aluminium


Have just found this which looks good Irwin bolt remover set

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Posted 9th Mar 2013 at 12:24
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daveyboy

aka Jim Davey

Location: Southampton

Registered: 01 Oct 2007

Posts: 8,648

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Post #6
I've got a tool that will get that off if you're in Southampton anytime soon?



Don't hammer on a socket, that's a good way to f**k up the bolt even more and break a socket.

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Posted 9th Mar 2013 at 12:30
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dendle89

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Post #7
Yea hammer on a smaller socket, failing that try a torque socket then

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Posted 9th Mar 2013 at 12:31
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daveyboy

aka Jim Davey

Location: Southampton

Registered: 01 Oct 2007

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Post #8
The first 2 stud extractors you linked to will not work, they are for studs not bolts. The last one might but I'd be dubious as to wether or not the skinny shafts would snap before the siezed bolt came undone (avoid).

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R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.

Some of my services: (See my for sale threads)
Engine mount/chassis repair
Solid Beam Mounts BACK IN PRODUCTION
Harness bars
Posted 9th Mar 2013 at 12:38
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monkeyman

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Location: Sunny St Albans

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Post #9
daveyboy wrote:
I've got a tool that will get that off if you're in Southampton anytime soon?




Never seen a months wages look so tempting Love

I'll probably go for the Irwin set off Amazon, unless my local tool shop has something this afternoon, thanks for the advice,

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Posted 9th Mar 2013 at 12:52
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dendle89

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Post #10
Has never failed me at all, just dont be too harsh with the hammering and u'l be fine but that tool set would be handy

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Posted 9th Mar 2013 at 12:54
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dangti6

aka JKshooter

Location: Taunton, Somerset

Registered: 15 Jun 2006

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Post #11
Those Irwin's are worth their weight in good when in your position.

The sort of thing you resist buying for Justin Case, but when you need one you wish you had a set to dust off.

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    • Posted 9th Mar 2013 at 13:22
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    daveyboy

    aka Jim Davey

    Location: Southampton

    Registered: 01 Oct 2007

    Posts: 8,648

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    Post #12
    I only buy stuff like that when it's on offer, I think they were £80 but it's only got to save me reaching down the side of an engine block to weld a nut to a rounded bolt once and as far as I'm concerned it's paid for itself. Had it a year and only used it once so far, but yeah handy thing to have up your sleeve. It's the reverse thread thats the clever bit, the harder you lean on it the more it srews itself onto the bolt head, so you can consentrate your effort on turning without having to cope with trying to keep it pushed on as well, I was impressed anyway.

    ________________________________________

    R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.

    Some of my services: (See my for sale threads)
    Engine mount/chassis repair
    Solid Beam Mounts BACK IN PRODUCTION
    Harness bars
    Posted 9th Mar 2013 at 15:03
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    monkeyman

    Seasoned Pro

    Location: Sunny St Albans

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    Post #13
    Bolt was no match for......



    Dad's big Stilson


    There was a big C-R-E-A-K as it came loose, which I thought was it shearing. Lots of copper grease before it goes back on Thumbs up

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    Posted 10th Mar 2013 at 19:58
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    stan_306gti6 Forum Admin

    Location: Kent

    Registered: 18 Jan 2004

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    Post #14
    When you say "goes back on" I take it you are going to replace the bolt? Dunno

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    Posted 10th Mar 2013 at 20:01
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    monkeyman

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    Location: Sunny St Albans

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    Post #15
    Good point, it doesn't look bad now its out, but I will replace it with a stainless one

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    Posted 10th Mar 2013 at 20:13
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    stan_306gti6 Forum Admin

    Location: Kent

    Registered: 18 Jan 2004

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    Post #16
    I was wondering, having rounded it off how exactly you were planning to refit it. LOL

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    Posted 10th Mar 2013 at 20:20
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