SOHC.co.uk Forums > CB350/400
Why can't you have rusty petrol tank shot or bead blasted ?
SteveW:
I tried white vinegar the other week on the missus’s 1963 Vespa tank.
It did absolutely nothing but I suppose possibly there was a residue of 2 stroke oil in there stopping it from working.
I tell a lie, it did do something, it stunk the garage out.
Lobo:
...ditto, vinegar did nothing for my 4-Stroke SS50 tank... other than make my hotel room / plumbing stink like a garage 😂😂😂. (bought it on a London visit)
Rob62:
Evaporust breaks the chemical bond between iron and oxygen, it doesn’t turn the metal black or any other colour... The only thing you must do is rinse thoroughly with water and then (for tanks) immediately dry and slosh some 2t and petrol in there to prevent flash rusting, which will occur whatever technique you use if you leave untreated after rinsing.
SteveW:
I wonder if a giant ultrasonic cleaner would work?
That is if they even make one that a tank would fit in.
McCabe-Thiele (Ted):
Best not bother with the vinegar then it will be straight to the Electrolysis phase when I empty out my gravel & Turp Substitute lubricant next week. I'll remove the Petcock and do some sort of bung on the outlet pipe.
The black colouration after using Evaporust was what I read on some reviews.
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