Stuck bolt inside mudguard arrrrrgh!

[Merlin]

Wonder if anyone can help? I am trying to fit a sissy bar to my Marauder 125 (so I can mount my topbox). The trims on the mudguard are held on by 4 allen bolts, and nuts that I assume are replacements as according to the manual they should just be held on with bolts through threaded holes.

I have spent literally hours trying to get these 4 bolts out. Unfortunately the space between the fairly fat tyre and the mudguard is just wide enough for my small hands Thanks to whoever replaced these bolts I have so far removed a size 14, 12 and 11mm bolt - would have been nice if they used a matching set, but hey ho, thankfully I have a well stocked tool box.

I went to a local garage centre and the young chap in there was really helpful and suggested I use Plus Gas - this was effective on bolt 3, bots 1 and 2 were down to grim determination! but bolt 4 is giving me the run around and refusing to shift. I have used nearly the whole tin of Plus Gas (and spent 2 days smelling of the stuff) all to no avail.

I have done a search on here and seen a thread about coca cola working on rust! Does anyone have any ideas for what else I can try? Now my "back end" is loose and I can't use my bike, so I'd really like to try and resolve this.

The one thing I don't have is a lift to raise the bike up to see, but I can't even get an inspection mirror in the space, so if I did I don't suppose I would see much, and I'd probably end up with a face full of Plus Gas or Coke!

Thanks for any tips/advice

Merlin

[acting_strange]

Wonder if anyone can help? I am trying to fit a sissy bar to my Marauder 125 (so I can mount my topbox). The trims on the mudguard are held on by 4 allen bolts, and nuts that I assume are replacements as according to the manual they should just be held on with bolts through threaded holes.

I have spent literally hours trying to get these 4 bolts out. Unfortunately the space between the fairly fat tyre and the mudguard is just wide enough for my small hands Thanks to whoever replaced these bolts I have so far removed a size 14, 12 and 11mm bolt - would have been nice if they used a matching set, but hey ho, thankfully I have a well stocked tool box.

I went to a local garage centre and the young chap in there was really helpful and suggested I use Plus Gas - this was effective on bolt 3, bots 1 and 2 were down to grim determination! but bolt 4 is giving me the run around and refusing to shift. I have used nearly the whole tin of Plus Gas (and spent 2 days smelling of the stuff) all to no avail.

I have done a search on here and seen a thread about coca cola working on rust! Does anyone have any ideas for what else I can try? Now my "back end" is loose and I can't use my bike, so I'd really like to try and resolve this.

The one thing I don't have is a lift to raise the bike up to see, but I can't even get an inspection mirror in the space, so if I did I don't suppose I would see much, and I'd probably end up with a face full of Plus Gas or Coke!

Thanks for any tips/advice

Merlin

 

Take the wheel out and use a dremel or something similar to cut the nut off then replace the whole thing...

[Tango]

Or just grind the head off the allen bolt and let it drop through.....you've probably got to replace it anyway......

[megawatt]

Taking the wheel off will give you room to work. If all else fails, use a pair of molegrips on both ends of the bolt and nut, try to undo it and if it's seized solid it will shear off and you need to replace it anyway.