Aluminum is inert to citric acid, which is why soda pop is in aluminum cans. Stainless would be fine. Get a black 55-gallon drum, set it in ths sun, put the rusty Borla parts in it with water and citric acid and go to town. I will forward one of the older AMC-List posts on Citric acid. Greg :) <>< Wrambler242@xxxxxxxxxxx wrote: Yeah, I missed that info. How about a fresh link? It does no harm to the aluminum? What about stainless? The Borla header I have to fix is rusty [high quality stainless, sure it is] A bath in a large warmed tub would do it good I gather... I had planned on bead blasting and polishing it to help it fight corrosion before wrapping it up in heat wrap. Maybe a bath would be better? Anyone try a solar heated tank etc; for this on large parts??? hmmm.... Might free up those old stuck motors. -- Mark Price Morgantown, WV 1969 AMC Rambler, 4.0L, EFI, T-5 2004 Grand Cherokee Laredo, 4.7L, Quadratrc II " Chronic Pain Hurts" Sincerely, Greg Taylor :) <>< And the testimony is this, that God has given us eternal life, and this life is in His Son. He who has the Son has the life; he who does not have the Son of God does not have the life. - 1 John 5:11-12 --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://splatter.wps.com/pipermail/amc-list/attachments/20080429/32f1109c/attachment.htm _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list