So here are the vintage 70s turbine mags on my Z. I've tried lots of products and methods to get the baked-on grime off, but nothing has worked so far. It's almost like the film of dirt on the areas between the spokes is etched into the metal, stained or bonded after nearly 40 years. Anything you might recommend? I've used a buffing wheel with metal polish, a couple wheel cleaners even brake cleaner, and.....no improvement. I'd love to brighten them up. Bead-blasting with a restoration shop the only alternative?
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