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Old 02-28-2021, 10:55 PM   #19
jerbo
Senior Member
 
Join Date: Oct 2018
Location: n. cal [Monterey Bay]
Posts: 116
Default Re: How to clean the rust & crud from the engine without running it through the radia

Does anyone have experience using Oxalic Acid to clean the engine block of rust crud?
How much Oxalic Acid to how much water to make the mix? Any idea how long to let the acid sit and soak before flushing or back flushing out ?
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Also has anyone used Oxalic Acid to clean the radiator ? Since most Model A radiators are made of brass, how long should the acid be left in to soak ?
Thanks, Jerbo
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