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08-05-2014, 11:13 PM | #11 |
No turn left unstoned
Join Date: Jun 2010
Location: leicester
Bike: M750
Posts: 4,554
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Its a bit extreme, but Mr Gremlin once told me that concentrated nitric acid will dissolve steel but leave aluminium untouched.
But I can't confirm it from my own experience. But it'll be preferential galvanic corrosion of the zinc plating, forming some sort of oxide, which is bunging up the works, I reckon. So if you can dissolve or soften that with the vinegar then you might be getting somewhere. Maybe even vinegar and heat. Or.....I just caught myself wondering....... Could you put a small location hole in the end of the bolt (using a centredrill perhaps) and then, using a pointed thing in the chuck of your electric drill, which was set to hammer, apply some high frequency hammering to the end of the bolt to jar the corrosion loose ? Of course the pointy thing would just spin in the hole, but it would still apply the high frequency hammer blows. Just a thought. You could file a point on any old bit of steel rod that would fit in the drill chuck.. Even a very fat nail might do the trick, though something beefier might be better. |
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