FWDTEXAS Posted December 9, 2009 Share Posted December 9, 2009 I have been experementing with citric acid on aluminum and brass parts with great results, here are some pictures of some FWD parts thus cleaned in a bath off citric acid and then wire brushed. Quote Link to comment Share on other sites More sharing options...
Johnny Posted December 9, 2009 Share Posted December 9, 2009 Intresting stuff! What concentration of acid are you using? I assume that this is just citric acid powder mixed with water? And how long did you leave the parts in for? I once made the mistake of putting an aluminium part into my caustic soda dip tank! :cry: Quote Link to comment Share on other sites More sharing options...
lynx42 Rick Cove Posted December 9, 2009 Share Posted December 9, 2009 I have been using citric acid for years. We have a large lemon tree which bears fruit 11 months of the year. Far too many for our normal use. So I just peel them and squash the rest into a drum, juice, pith seeds and all. Then I just add the necessary bit and watch the rust disolve away. Rusted bolts and nuts will just undo after a couple of days in the citric acid. I don't know about aluminium, I haven't tried that. Copper and brass does turn pink until you polish it. I always wire brush then rinse with clean water and spray a dewatering spray on straight away. If you don't, any steel or cast-iron bit will start rusting imediately. Regards Rick Quote Link to comment Share on other sites More sharing options...
Tony B Posted December 9, 2009 Share Posted December 9, 2009 Good technique! Dog don't seemed that impresed though.:-D Quote Link to comment Share on other sites More sharing options...
FWDTEXAS Posted December 9, 2009 Author Share Posted December 9, 2009 The stronger you make the mixture the faster it works Quote Link to comment Share on other sites More sharing options...
FWDTEXAS Posted December 9, 2009 Author Share Posted December 9, 2009 Well Sebastian has seen that all before Quote Link to comment Share on other sites More sharing options...
Tony B Posted December 9, 2009 Share Posted December 9, 2009 The stronger you make the mixture the faster it works If you are using natural lemon juice, how do you strengthen the mixture? Quote Link to comment Share on other sites More sharing options...
Rick W Posted December 9, 2009 Share Posted December 9, 2009 If you are using natural lemon juice, how do you strengthen the mixture? Add some Gin presumably.:coffee: Quote Link to comment Share on other sites More sharing options...
Tony B Posted December 9, 2009 Share Posted December 9, 2009 :rofl::rofl::rofl: Add some Gin presumably.:coffee: Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted December 9, 2009 Share Posted December 9, 2009 I don't know about aluminium, I haven't tried that. Hi Rick, I have heard that rhubarb leaves are good for cleaning aluminium. The leaves are boiled in water, then immerse aluminium parts in to the hot solution. Not tried it as I do grow rhubarb anymore. Quote Link to comment Share on other sites More sharing options...
Old Bill Posted December 9, 2009 Share Posted December 9, 2009 I have used citric acid before, both to clean aluminium and remove rust. The aluminium cleaning was a bit indifferent but the rust just disappeared in no time. The acid mix does go pretty nasty and things seem to live in it after a while. Losing small pieces in a green sludge is easy to do! It has been suggested to me that I try molasses in water as a de-rusting agent? I have only heard it from one source but he absolutely swears by it. I have not yet tried it but have any of you? What are your experiences? I think the solution is relatively innocuous which is always nice too. Steve Quote Link to comment Share on other sites More sharing options...
Old Bill Posted December 9, 2009 Share Posted December 9, 2009 Is that a Stromberg M2 carburettor? How does it compare for performance with the original G3? Actually, that is probably a silly question as you haven't run it yet! Please let us know when you do as I would be very interested to hear. Steve Quote Link to comment Share on other sites More sharing options...
FWDTEXAS Posted December 10, 2009 Author Share Posted December 10, 2009 There is no name on it but cast-in M-2 and under it 625978 stamped in. It is a cast bronse unit. will enclos picture later. Quote Link to comment Share on other sites More sharing options...
Tony B Posted December 10, 2009 Share Posted December 10, 2009 Rhubarb leaves when boiled can produce Hydro Cyanic acid, very nasty stuff. Quote Link to comment Share on other sites More sharing options...
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