Arm and hammer washing soda. We bought this in our local super market. It was in the same isle as the bleach and laundry detergent. Apparently, the amount added to the water is not critical. We added one small shake of the box for each gallon of water. The Rubbermaid tote we used here holds 20 gallons. washing_soda.jpg
washing_soda.jpg
Battery charger is used as a power supply. We started out using this, and it seemed to work well. We switched to a different supply a couple hours in. We had that silver power supply handy, so gave it a try. It's rated for 30 Amperes where the charger is labeled 10. We noticed more bubbles with the larger power supply.
The iron or stainless electrode is connected to the + positive (red) terminal. The object being cleaned, to the - negative(black).
10acharger.jpg
10acharger.jpg
Battery charger, tank, and the tools used to set up the 'mess'. Two pieces of wire and a couple of alligator clips attach the power to the part and the anode. The anode we used is a scrap piece of steel. It is submerged in the tank and out of sight. The light bulb is there to let us know the power is on and that the part in the tank is not touching the anode. setup.jpg
setup.jpg
Miserable looking foam started to collect after only a few hours of running. Although it's hard to see in the pictures, the water just above the rusty part is bubbling. It looks like a freshly poured glass of ginger ale. vat1.jpg
vat1.jpg
Here is our brake master cylinder as it looked when we took it from the Ghia. This was the rustiest thing we had around that would fit easily into the tank. We don't know what harm the process will have on the internals, but "what the heck". master_cyl_before.jpg
master_cyl_before.jpg
Overnight treatment left us with this. After a very light scrub with a nylon scrub brush, the part has very small traces of rust left on it. A little more attention with the scrub brush and this will be clean. The mounting bolts look like they were cleaned the best. Where there was a white colored oxidation covering the threads there is now fairly clean metal. master_cyl_after.jpg
master_cyl_after.jpg
Yet another mirror of Ted Kinsey's rust removal FAQ: click here