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 Using electricity to clean rusty or greasy parts

 

I've read about this all over the internet and I just had to try it for myself.

 

Dirty Greasy engine pan.

 

 

Instead of dipping it I decided to try doing it backwards, using the pan as a bucket

Instead of dipping the part in, I dipped the sacrificial iron.

 

Cast Iron piston, headed for the scrap heap.

You might find this interesting, I did.  This is five quarts of water in the pan.

If there was a transmission in there displacing the liquid, I'm guessing it would be right up to pan gasket.

Here's about 9 quarts of water.

You'll need a source of electricity.

And some "washing soda" - it's not the same as baking soda.

This was taken about 2 minutes after turning the juice on.

The water is swirling.

Red is positive 12 volts and attached to the scrap metal not being saved.

Black is negative and attached to the part I want to keep.

What's amazing to me is it the amperage draw - 6 amps, just through soapy water!

15 minutes later the water is still moving.

I ran this for maybe 4 hours total.  I had no idea when to stop and I could not see through the water.

Before and after shots.

And here is the pan after letting it air-dry.

I'm going to give this a few more tries.  It's appealing to me because there are no expensive solvents to buy, no paying someone to sandblast parts.  I had been buying time in a local machine shops hot-tank, if this "pans out", I might be able to do the smaller pieces here instead.  The only by-product of this was a bucket of dingy water.  The dirt settled to the bottom of the bucket I drained this into.  The grease was floating on the surface, hanging around the positive pole.  Easily scooped out with a piece of wood.

It's being listed all over the internet as a more environmentally friendly alternative to traditional methods.

I'll post more as I learn about it.

 

 

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