[dfarning]

Sean,

I have been derusting at room temp. The tempature of the bath seems to have no effect on the rate of derusting.

There are two schools of thought on the current used to derust. The restorers like to use low current flows (1A per sq ft)for long periods of time. Some of the derusting shops recommend high current flow (50A to 70A per sq ft) for just a few minutes.

Using high currents has the effect of rapidly forming hydrogen bubbles which can loosen and lift off big flakes of rust. On the other hand it doesn't seem to throw as well into the bowls and throats of carbs.

I like the lower currents because it seems to clean out the insides of parts better.

I've got several 2X1X1 ft tanks going. I line the tanks with stainless steel sheet and then run a 3/4 inch copper pipe lengthwise down the tanks to hang the parts from. I hang the parts from hooks made from 8 ga solid wire.

About three times a day I check the carbs to see how they are doing. Rust chunks get a light scraping and then I rehang the part differently. There are many holes and protrusions to hangs carb in different ways.

To keep track of how the parts are coming along I move the cleaner parts to the front and right most tanks. I add new carbs to the back left tank. They are pretty much arranged rusty to clean.

Depending on the size of the carbs I fit about 4 per tank.

If you try to derust electrically would you mind trying to soda bast the smut off? The price of ultrasonic tanks is making my toes curl. I have not looked into soda blasting very much. What does the price of a small unit cost?

Thanks
Dave