Re: Oxalic acid after-work

Drake Abrahamsson /
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> P D Wrote:

> -------------------------------------------------------

> Like everything else , there are no absolutes .

>

> Your tank may be more or less rusted than mine was .

>

> I left the acid mix in my Simplex tank for about 24 hours . Dumped the

> mix into a clean tub . Rinsed the tank with clean water . Inspected and

> decided another day of acid mix was in order .

>

> Oxalic acid leaves a coating after rinse .

>

> Note the lower part of the brake plate has been wiped clean . The upper

> part still has the coating .

>

> https://i.postimg.cc/h45Z1LBP/HPIM1559.jpg

>

> That coating can be left in the tank . It doesn't hurt anything being

> mixed with fuel .

Thanks for being the authority on oxalic acid! I really liked this method. One question: what’s the crystallization? I left my flywheel cover in some just to see what was going on inside the tank and this was the result. Is that a byproduct of the rust-oxalic acid reaction or could it be a result of the minerals/salts in the sink water I used with the oxalic acid? More curious than anything at this point, it seems like it comes off easily

E4A46043-3F63-442D-BC6A-82A4CE71623C.jpeg
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