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Old 06-28-2016, 01:01 PM   #3
captndan
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Join Date: Nov 2015
Location: Tennessee
Posts: 714
Default Re: Electrolytic de-rusting - engine block ?

Electrolysis works great but is line of sight only. Phosphoric acid would be better then lots of water. Even better take the block to a machine shop and have them 'boil' it out.
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