Quote:
Originally Posted by tubman
Just a note - I used "Rust-911" on the '51 Merc I now have in my '51. I did it 3 times with plain water flushes in between. I thought it turned out well. I have had the engine in the car for about a year now, and I have had no cooling problems. Here are some pictures of the result :
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That's plenty clean! It's amazing how well these old engines run once you get the scale, rust, sand and core wire out of the water jackets...