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• PRO

  Dave Colton December 30, 2018 at 1:45pm

  Have you tried spraying with penetrating oil such as plus gas or WD40 and leaving for a few hours and then using the grips to see it that works.
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  Graham Taylor December 30, 2018 at 6:35pm

  If I've undertood the problem correctly, if you undo the nut complete with the stud, you can then clamp the stud very tightly in a vice, ideally spray with some "Plusgas" and the nut should shift.  Then run a nut down the thread/stud that was clamped in the vice and this should tidy up any damage on the stud.  If the nut wont shift this way, you can easily buy a length of studding and cut the piece of to the length you need.....  another way is to hacksaw down the nut on one side until you are just about touching the stud inside the nut (if you've a Dremel, it's even easier),  then you can force a screwdriver/chisel into the cut you've made to open the nut up up slightly.... it will then come off easily.
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    Anthony Toop > Graham Taylor December 31, 2018 at 10:54am

    You cant use a vice because the fuel tank and starter are still attached, the stud passes through both!

     
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      Graham Taylor > Anthony Toop December 31, 2018 at 1:43pm

      Obviously misunderstood the setup!!  I assumed you could just undo the nuts with the stud still attached....  then rescrew the stud in once it was free from the nuts.......  Never mind.. I tried :)

       
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        Anthony Toop > Graham Taylor December 31, 2018 at 5:37pm

        No worries, resorted to cutting part of the nut off with a hack saw, and then prising it off.

        Tried cutting a slot in the top of the stud first so i could hold it still with a screw driver, while turning the nut, but it didnt work!
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  Graham Taylor December 31, 2018 at 10:42pm

  You've done well there without cutting into the plastic.  I rescued a Dremel from a skip last year...... always thought they were just "toys" but they are fantastic for fiddly jobs like that.  Glad you got it sorted.
• PRO

  Andrew Betteridge January 1, 2019 at 11:28am

  My minds eye was working like Grahams' I was thinking a stud with a stiff nut becomes a long bolt when the stud comes out with the nut still in place. 

  Andy 
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    Anthony Toop > Andrew Betteridge January 1, 2019 at 1:20pm

    Normally yes, but on these the stud has a flange about 15mm down the thread that the plastic cover/fuel tank and then starter rest on.

     
• PRO

  Andrew Betteridge January 1, 2019 at 3:52pm

  You can buy nut splitters of varying quality from an assortment of suppliers, but you need room around the nut to get them over it.

  https://www.toolstation.com/nut-splitter-set/p80007

  

  Nut Splitter Set

  2 piece set of forged steel nut splitters. 2-15mm and 15-22mm. Chrome molybdenum steel blades.