Posted by Fuddy Duddy on January 01, 2013 at 06:34:37 from (75.229.48.74):
Looking back right now on page 12 is the below post by Jim in Eastern North Caro 12-08-2012 14:11:36.
Machinist's Workshop recently published some information on various penetrating oils. The magazine reports they tested penetrates for break out torque on rusted nuts. Below listed, a test was made of all the popular penetrates used on a series of identical bolts/nuts in a "scientifically rusted" environment. Average torque load to loosen:
The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic transmission fluid and acetone. Note this "home brew" released bolts better than any commercial product in this one particular test.
Here's what I found. Back when I was getting ready to break free the old Hercules engine, It had soaked it for a week in MMO. Then I read the post. So I mixed some ATF and Acetone. Used the MMO that was in there already as a lubercten to hone and sand the cylinders. Then I remove all the MMO and added the Mixture in there. About a 1/4 inch in each cylinder. After about 5 minutes, I had a piece oak cut down to fit the cylinder. So I thought why not give a few taps to see what happens. This was the first try at moving the pistons. After a few taps they did break free. I don't know if it was the MMO or the mixture or just wasn't stuck as bad as I thought. But here's the point of my post. I poured the rest of the mixture I had left in a glass jar 4 inches tall. A few days latter I looked at it and saw there was a separation line. ATF was on the bottom and measured 2 3/4. The Acetone was on top with 1 1/4 inches. The Acetone still has a red tint. Just lighter than the bottom. The test was done on Breaking Free nuts and bolt. Maybe if you want to long term soak rings in a cylinders you might want to go with a 2 to 1 mixture. Just my observation and thought. Test it yourself. Jim I hope you don't mind my copying your post.
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