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| Seized bolt removal... https://ukbeg.com/forum/viewtopic.php?f=7&t=10540 |
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| Author: | t965m [ 05 Apr 2011 10:23 ] |
| Post subject: | Seized bolt removal... |
I've got a seized bolt with a 4mm Allen head that I need to remove, it holds a plastic swing arm protector in place, so I'm guessing applying heat isn't the best bet  . To make things slightly more complicated, it's on the underside of the swing arm.Any helpful advice for removing it would be appreciated  Thanks.
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| Author: | pash [ 05 Apr 2011 11:20 ] |
| Post subject: | Re: Seized bolt removal... |
Has the Allen socket rounded? If so I would radio in the molegrips. If not, what about an impact driver, the type you clout with a hammer? They are good cos the clout unloads the thread at the same time as turning the screw. |
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| Author: | TOPGUMM [ 05 Apr 2011 11:30 ] |
| Post subject: | Re: Seized bolt removal... |
Not being funny ,but as its underneath you are undoing in the right direction, 
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| Author: | t965m [ 05 Apr 2011 11:45 ] |
| Post subject: | Re: Seized bolt removal... |
Leftie loosey, righty tighty - laid on my back when I was doing it, it was the first thing I checked when it didn't shift Not convinced I want to be hammering the swing arm, or am I being a Jessie? And yes, its rounded off
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| Author: | losttyke [ 05 Apr 2011 12:04 ] |
| Post subject: | Re: Seized bolt removal... |
Screwfix sell a kit made by 'irwin' For bolt removal it's saved me a lot of hassle working on seized nuts n bolts. They cut into the outside edge of the bolt. I haven't had one sheer on me yet. |
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| Author: | Nutah [ 05 Apr 2011 12:27 ] |
| Post subject: | Re: Seized bolt removal... |
or drill the head off remove the plastic then heat / or release oil it then try a stud extractor or mole grips if you haven't got one |
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| Author: | paulalig [ 05 Apr 2011 13:07 ] |
| Post subject: | Re: Seized bolt removal... |
That happened to me on my Trumpet in exactly the same place - tried everything and in the end it broke off flush with the suface.If you're replacing the rubbing strip why not cut the old one away around the bolt for better access and gently try a hot air gun on the job. Easy outs wouldn't budge it so I drilled it out and tapped it oversize in situ. I reckon it was corrosion from the inside of the arm on the thread of the bolt. |
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| Author: | t965m [ 05 Apr 2011 14:09 ] |
| Post subject: | Seized bolt removal... |
I'm not replacing the strip I'm fitting a scotoiler and want to use it to secure a holding bracket. The head is rounded like a screw so it might not be enough to get hold of. I think it is going to be a drill out job or think of another way of doing it. Cheers for all the advice |
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| Author: | Motorrad [ 05 Apr 2011 15:12 ] |
| Post subject: | Re: Seized bolt removal... |
Is t here enough height in the rounded head to slice a slot for a flat head screwdriver? What about sacrificing an inexpensive Allen wrench by JB welding it into the rounded hole? As it is holding a plastic piece, it can't be torqued very tightly, so removal should be easy. Spray on a penetrating fluid (PB Blaster type). |
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| Author: | rik [ 05 Apr 2011 16:07 ] |
| Post subject: | Re: Seized bolt removal... |
This shows perfectly what a rubbish drive design an internal hex ('allen') is..... Soak it liberally overnight in a good releasing fluid (try to get fluid onto the thread inside the arm through another hole if you can), then tap in a slightly oversize Torx (T25 or T27) or Spline (No5) bit so that it actually broaches its own fit, then, being sure not to tilt the bit in the head of the screw, use gentle leverage with a decent length bar (rather than sudden jerking movement with a shorter lever). If it breaks, it was going to break whatever you did and you'll have to drill and retap/ helicoil, but I find this method will often save the day. |
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| Author: | losttyke [ 05 Apr 2011 16:50 ] |
| Post subject: | Re: Seized bolt removal... |
t965m wrote: I'm not replacing the strip I'm fitting a scotoiler and want to use it to secure a holding bracket. The head is rounded like a screw so it might not be enough to get hold of. I think it is going to be a drill out job or think of another way of doing it. Cheers for all the advice these are what i use just tap them into place and put a socket/spanner/shifters on and it should come out. pricey but worth having a set. http://www.screwfix.com/p/irwin-5-piece ... -set/96028 |
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| Author: | t965m [ 05 Apr 2011 17:11 ] |
| Post subject: | Re: Seized bolt removal... |
I've had a look and I can't get at the thing from the top so can't soak it with penetrating oil, + the plastic strip is proud of the head  I think I'm gonna try the oversize Torx thing...
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| Author: | Motorrad [ 05 Apr 2011 21:21 ] |
| Post subject: | Re: Seized bolt removal... |
You didn't really need that little, cheesy piece of plastic bolted onto the bike anyway, did you? 
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