ggdad1951 Posted September 23, 2011 Report Share Posted September 23, 2011 so "my guy" ended up lightly blasting these completely (more than I wanted him to do, was supposed to just hit the rusty parts on the linkages!) and doesn't think they should be cad'd assembled....I'm more worried that after I clean them up they won't stay rust free if I clean up the blast residue and rattle can paint them immediately. WHAT TO DO? Quote Link to comment Share on other sites More sharing options...
Desotodav Posted September 23, 2011 Report Share Posted September 23, 2011 I sand blasted my regulators and latches and had them plated. I would imagine that a good coat of paint will prevent them from rusting in your case. The moving parts may scratch some of that paint off though - but how much moisture do you expect to get there in the future? Be careful if you plate them, as I found that the process made the spring material brittle causing mine to snap. Desotodav Quote Link to comment Share on other sites More sharing options...
Eneto-55 Posted September 23, 2011 Report Share Posted September 23, 2011 (edited) I don't know what part of the cad plating process caused the spring steel to become brittle, but possibly they were in acid too long? We often plated "piano" hinges, and there was never a problem with restricted movement afterwards. If there is a concern about this, however (I'm guessing that this might be his reason?), the mechanism could be operated at intervals during the plating process. Actually, you would need to have them do that anyway, so that the areas which are blocked by other parts will be plated as well. Possibly along the same lines, I bead blasted and cad plated my whole backing plates, since the blasting removed the plating from the adjuster bolts. (I also cad plated my engine dust shields and the smaller parts of the inner fender wells, but that was strictly for extra rust protection. I think we painted them with emron afterwards - it was too long ago to remember now. At the time I was rebuilding it for a year-around driver.) Neto Edited to add: Hot tin plating would be another option. Edited September 23, 2011 by Eneto-55 addition Quote Link to comment Share on other sites More sharing options...
ggdad1951 Posted September 24, 2011 Author Report Share Posted September 24, 2011 well if there is any heat in the plating process that can reduce the temper in the spring steel OR (this is more likely) you get hydrogen embrittlement I think I'll just POR15 the parts lightly and lube them up good. Quote Link to comment Share on other sites More sharing options...
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