Remove the Corrosion, Keep the Patina

I'm getting close to getting my MK II running after a gearbox rebuild.

The gearbox case has been bead blasted and painted with HT aluminum paint. The inner primary and crankcase have cleaned up quite well.

The head however looks a bit shoddy. It has some minor corrosion and baked on oil mist. I would like to use some sort of cleaner to brighten it up a bit.







Any suggestions? I do have some Simple Green spray. Perhaps give it a good scrub with a soft brush and spray it off?

A bit late now but this was a plain old wooden handle brass bristle wire brush done in the frame.



You could use Duragloss853 but in the bike would be risky at best.
I use Pledge or CRC808 on castings once cleaned, Dubbin on vintage bikes including heavy patina/bubbled paint.

I removed baked in oil y soaking it I degreaser then with neat car shampoo and a small brass brush. The worst came off first time, I repeated it a couple of times after I'd ridden it and let it cool, and nearly all gone, just a couple of little spots, which I removed with a small sharp pick.

I tried Solvol on an old toothbrush and was surprised how well it worked on the head.

Brake cleaner & a brass wire brush

Oven cleaner should do well for burnt on oil. It will convert oils to soap for effective wipe off.

I used brass brush wheel on slow spin drill with 3n1 oil , then wiped down with brake cleaner soaked green scotch pads , turned out pretty good , I did remove from frame ….