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tank filler cap allen bolt

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skyrider
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tank filler cap allen bolt

Post by skyrider on Wed 20 Jan 2016, 7:29 pm

im having a bit of a problem with the front long allen bolt on the filler cap which has sheared off, I have sprayed plenty of plus gas on it and tried to unscrew it with mole grips but no joy, any sudgestions Neutral
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eternally_troubled
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Re: tank filler cap allen bolt

Post by eternally_troubled on Thu 21 Jan 2016, 12:12 pm

If it wasn't on the petrol tank I'd suggest heating it up.

Have you tried filing some flats on the sides of the bolt to help the mole grips get some purchase?

You could try heating it up with a paint stripper gun (or similar) - I would be slightly uneasy about this too! Best to do it outside.... Smile
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ashcroc
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Re: tank filler cap allen bolt

Post by ashcroc on Thu 21 Jan 2016, 12:54 pm

Epoxy on a nut & use a spanner (welding would be better but as it's the fuel tank...) or file in a slot for a flat head screwdriver.

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skyrider
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Re: tank filler cap allen bolt

Post by skyrider on Thu 21 Jan 2016, 6:54 pm

up to now I have just under an inch left of the bolt stuck out of the tank and its very thin one wrong move and it will shear again, I think someone might have cross threaded it

sullivj
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Re: tank filler cap allen bolt

Post by sullivj on Thu 21 Jan 2016, 8:20 pm

Plus gas and a gator grip maybe?
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davebike500
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Re: tank filler cap allen bolt

Post by davebike500 on Fri 22 Jan 2016, 11:03 am

Take cap out  it is only the front and two rear most allen screws the others are dummys !

spray the broken stub with Penetrating oil NOT WD40 or other water dispersant or light oils
leave repeat use vice grips or at a pinch mole grips to remove the screwed bit
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skyrider
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Re: tank filler cap allen bolt

Post by skyrider on Fri 22 Jan 2016, 5:29 pm

that's exactly what I have done Dave and up to now no joy, I will keep spraying it with pg something has got to give Neutral

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Re: tank filler cap allen bolt

Post by Guest on Sat 23 Jan 2016, 3:35 pm

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skyrider
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Re: tank filler cap allen bolt

Post by skyrider on Sat 23 Jan 2016, 4:12 pm

right I will persevere with pg for another week and if it still doesn't loosen the bolt I will try some of that stuff, that's assuming that I can purchase it over here
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eternally_troubled
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Re: tank filler cap allen bolt

Post by eternally_troubled on Mon 25 Jan 2016, 1:04 pm

@skyrider wrote:right I will persevere with pg for another week and if it still doesn't loosen the bolt I will try some of that stuff, that's assuming that I can purchase it over here

That's just freezer spray - you can get it here in the UK certainly, at maplins, for example:

http://www.maplin.co.uk/p/maplin-freezer-spray-400ml-n68an

It might work - same kind of idea as heating it up.
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skyrider
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Re: tank filler cap allen bolt

Post by skyrider on Mon 25 Jan 2016, 6:52 pm

I think you are right I might try warming it up first I don't think I have much to loose Neutral
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skyrider
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Re: tank filler cap allen bolt

Post by skyrider on Fri 29 Jan 2016, 6:57 pm

I got back on it today with pg mole grips and a blow torch and it needed lots of applications of all three before it gave in, I had to get the bolt seriously hot and the surrounding area of the tank (lucky im getting it resprayed) don't know which gorilla had screwed it in but no wonder it had snapped, anyway I managed to get it out in one piece without it snapping again
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eternally_troubled
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Re: tank filler cap allen bolt

Post by eternally_troubled on Fri 29 Jan 2016, 7:56 pm

well done that man!
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skyrider
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Re: tank filler cap allen bolt

Post by skyrider on Fri 29 Jan 2016, 8:09 pm

yes im a bit relieved about it I could see me having to cut and try and drill it out
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skyrider
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Re: tank filler cap allen bolt

Post by skyrider on Sun 31 Jan 2016, 9:01 pm

another thing I noticed after I had got the bolt out was when I moved the tank around there was a rattling noise coming from inside the tank , so gently moving the tank around I got the object right below the filler hole and managed to remove it chop stick style with two pieces of flat metal bar it was then that I found out that it was a one of the square sprung loaded parts of the locking  filler cap, that  has since been replaced by the present one

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