Its been covered extensively under electrolisys (sp?) rust removal. Battery charger plastic bucket Steel or iron bar Salt Your part Fill the bucket with water, dissolve salt in it. Doesn't have to be much. Set the bar in vertical and clamp it to the wall of the bucket so it can't fall over. Connect the positive to this bar Connect the negative to the old part and submerge. Make sure they two parts can't touch. Plug in the charger. After a bit it will start to bubble and produce a yucky green/orange slime. Leave it for a few hours. OUTSIDE. The bubbles are hydrogen gas and explosive. DON'T SMOKE! Unplug the power to the charger before you mess with the terminals so you don't cause a spark. The part will blacken, rust will dissolve. Pull it out and brush/wash in clean water. Your results may vary. Several good sites if you google. http://www.stovebolt.com/techtips/rust/electrolytic_derusting.htm
If you are a reader of the HAMB a must to have is the May 2007 issue of Rod and Custom with Rolf's coupe on the cover. In that issue they also have an article on rust removal that covers just what you need. GET IT WHILE YOU STILL CAN.
for metal trim i've used coke (soda) and steel wool it worked pretty good. but the electric thing sounds cool.
I have the article from R&C..in step#4 it says "I connected the negative terminal right to the part for demonstration purposes, its good practice to use a non-copper jumper wire..but in the picture the wire on the bucket is clearly copper and aren't the jumper wires on my battery charger copper? its a tad confusing....
DO NOT USE SALT !!! FUME IS CHLORINE ( it can kill you real quick) Washing soda is best, baking soda is ok. but salt is a no-no.
Seriously? I had no idea. I didn't have baking soda one day so I just used some Kosher salt I had. I assumed it was hydrogen gas. Either way it is definately something you would want to do outdoors. I usually have it sitting in the yard and use long cords.
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