Rusty bolts

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Tue 19 Nov 2002 21:23
Rusty bolts - cos
I have recently found an excellent solution for rusted on bolts , ie exhaust and suspension, it is coca cola. It works far better than the so called market leading deceasers. Anyone agree? comments?
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Tue 19 Nov 2002 22:58
Rusty bolts - Ian Cook
Makes a mess of your fillings too, Cos. Drink it with caution.
;o)

Ian Cook
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Tue 19 Nov 2002 23:43
Rusty bolts - Andrew-T
It is widely rumoured that Coke contains appreciable amounts of phosphoric acid, which is why it dissolves teeth (gradually). Probably also why it releases rusted nuts (if it does).
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Wed 20 Nov 2002 09:56
Rusty bolts - Dizzy {P}
Coke was popular in the USA many years ago as a freeing agent and, as said, it relies on its phosphoric acid content for this. It was especially popular for tipping into the bores of seized engines but I've never seen any scientific evidence that it works better than any other thin, penetrating, fluid.

Phosphoric acid doesn't eat rust, it converts it to a more stable and inert form. This is why rust-killing agents like Jenolite comprise mainly phosphoric acid.

I think a good soaking in diesel fuel is a far better bet for freeing seized parts. Diesel fuel penetrates deep down and also lubricates.



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Wed 20 Nov 2002 11:39
Rusty bolts - cos
Thanks, i'll have to try that one.
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Wed 20 Nov 2002 12:00
Rusty bolts - Toad, of Toad Hall.
Coke was popular [snip] It was especially popular for tipping into the
bores of seized engines >>



And when the sugar caramelises?
--
These are my own opinions, and not necessarily those of all Toads.
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Wed 20 Nov 2002 10:08
Rusty bolts - Galaxy
Try seeing what Brown Sauce will do to an old copper coin!
However, I don't know whether this effect would be of any benefit if used on car components.
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Wed 20 Nov 2002 12:20
Rusty bolts - BrianW
Try seeing what Brown Sauce will do to an old copper coin!>>


That would be the effect of the vinegar (acetic acid).
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Wed 20 Nov 2002 20:37
Rusty bolts - Mondaywoe
Funny you should say that! There was an article in our local press a few days ago about some guy who was trying to get an old Merc back on the road after being laid up for 18 years or so. The engine had seized solid and after many desperate but unsuccessful attempts at freeing it off with WD40 etc, he poured a can of Coke into the plug holes and left overnight..........

Next morning? Turned over beautifully! Looks like you might be right!

Not sure if Diet Coke makes any difference......

Graeme.
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