Dark black oxidised engine casings
Hi guys I have spent almost a year now scouring the Internet trying to find an answer to how u can remove severe oxidation from casings I had previously used Gunk ultra on my engines and if you were not more than five minutes it would not corrode or oxidise, however a friend suggested a so called excellent parts cleaner which I was told to pop out and come back five minutes later I did this and I was totally shocked when I came back as it had started foaming the result being it turned nearly black all over !!! Is there anything I can use to bring the casing back to an original cast finish please? ??
if I can find a way I haven't lost a nearly new nineties hanno special 61RF casing plus some of my earlier engines with slight corrosion could be restored I am fingers crossed someone can advise me on this? ? Many thanks Simon.