BB the top two where before I did anything other than pull it out the recycle pile. The last pic was after I pull it out the 5 hour bath and cleaned with water and only light rubbing by my bare hand the last bits that the normal water hose pressure didn't get off easily. If I had set up the pressure washer (just being lazy on my day off) it would have took care of it without me rubbing the surface. No Scotch Brite pad was needed or used. Now I know would there might some that are more rusted might need a little scrubbing or longer bath.
The underside was just as clean as the outside. Now my steel electrode did turn quite black but it also came out the recycle pile of used bar blades. Almost as black as the spray paint I use to paint the shroud just not high gloss. So the only cost was the 3 gallons of vinegar.
Overall I was very pleased with the results on that '98 shroud using the 5% white vinegar as the electrolyte and my 60w solar panel.
Just don't like using them on the wrong engine without changing the stamp model and type numbers. This process however will help on the restores and the used parts recovery especially the tins so I have a new use for my solar panel other than charging batteries.
As for the washing soda this is where the info is lacking as what the concentration that is being used. Other words what percentage (mix ratio) that is being used? Like one cup to a gallon or one cup to a liter. That would take the guessing out. Just for example the molasses bath I don't see where any mix ratio is posted.
Last edited by AVB; 03/09/18 11:53 PM. Reason: wording correction
