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  #1  
Old 16th July 2018, 03:10 PM
Alialinejad Alialinejad is offline
Wobbling Fledgling
 
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4 posts since Aug 2017
Motorbike: Triumph STR,Honda CB750K7
Default Broken Paddock Stand Bobbin Screw

Hi All,

I've got broken bobbin screw in the swing arm. tried to drill it with a small drilling bit and use screw extractor. It was not as easy as saying!!!!!
Can anybody suggest any handyman or engineer who can pull the broken screw from swing arm for me?
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  #2  
Old 16th July 2018, 03:38 PM
Valiant Thor
Default Re: Broken Paddock Stand Bobbin Screw

ahh noo, hardened steel and aliumium dont like each other , be carefull,
I cant help if u tried the smaller stud extractor before, heat gun?
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  #3  
Old 17th July 2018, 12:08 PM
Alialinejad Alialinejad is offline
Wobbling Fledgling
Original Poster of This Thread Topic Starter
 
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Motorbike: Triumph STR,Honda CB750K7
Default Re: Broken Paddock Stand Bobbin Screw

Originally Posted by acdc
ahh noo, hardened steel and aliumium dont like each other , be carefull,
I cant help if u tried the smaller stud extractor before, heat gun?

Haven't tried it yet. Maybe is a good idea, heating the screw will make it softer to drill in. Thanks for that.
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  #4  
Old 17th July 2018, 12:32 PM
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RTV RTV is offline
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1,514 posts since Jul 2015
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Default Re: Broken Paddock Stand Bobbin Screw

If you have a dremel tool you can try to mark a groove and try to get it out with a flat head screwdriver. That shouldn't have too much torque applied to it so...

You can help it out by applying WD40 or your favorite penetrating oil a few times and leave it to do its thing for a few hours before attempting removal.... heat gun as suggested before is another option to loosen things up.
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  #5  
Old 17th July 2018, 01:14 PM
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HIGHSIDER HIGHSIDER is offline
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Default Re: Broken Paddock Stand Bobbin Screw

Heat gun me bollo*....waste of fookin time

What size is the thread OP and the best advice I can give is don't go near it any more and get someone that has the experience & the kit to go at it now & limit the damage....

You've had a go and chewed it up...the last thing you want now is to do damage on the internal thread on that arm whatever about the broken bolt/stud. Someone with experience will have that out without damaging that arm.

Last edited by HIGHSIDER; 17th July 2018 at 01:17 PM.
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  #6  
Old 19th July 2018, 04:28 PM
Doc tattoo Doc tattoo is offline
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47 posts since Jul 2015
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Modifications: Streetfighter
Default Re: Broken Paddock Stand Bobbin Screw

Try freezing it and it shud shatter wit a hammer and punch. Deals sell cans of compressed air for 1:50. If u turn the can upside down it will freeze rather than blow air. This has worked for me. Hopefully works for u
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  #7  
Old 19th July 2018, 10:06 PM
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mad maxx mad maxx is offline
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Biker.ie Member No. 20447 from Cork
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Default Re: Broken Paddock Stand Bobbin Screw

Do NOT heat the bolt
If you do you can forget drilling it out
Center punch the center of the bolt and then drill it out to size for the extractor
Those left hand thread extractors are a waste of time as well
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