So I had a spare RA29 fuel tank that had lots of rust.
Took it to radiator shop to get it hot tanked but was told that
They are only going to rinse the tank with some very hot water but rust will still be there.
Next I took it to shops that refurbish gas tanks
by sand blasting and sealing for $450.
So I went out and bought 6 gallons of white vinegar and a can of salt(total $12.75). I didn’t rinse or clean the tank before pouring all 6 gallons and half can of salt into flat laying tank and let it sit for 4 days. Today I emptied the gas tank into big bucket after power washed the inside, was shocked to see nice and clean metal.
Today I flipped the tank over and poured the same vinegar mix in I will let it sit for another 4 days and which point I will clean the inside once again air dry it and use POR 15 to seal.
Will post pictures when done.
I have another TE27 tank to clean and I will be reusing the same vinegar.
