PhntmSk8r said:
paint stripper will remove any residues, oils, possible clear finishes that have been applied to it.
It would be a good idea to do so lol
the only thing is that the aircraft stripper tends to make this weird corrosion type thing if you put to much to the aluminum
for example, where the paint had chipped off (the original black) had more corrosion on it, after the stripper, then the rest did so be careful, you don't want to make anymore work for yourself than you have to
so basically what i'm saying is that the stripper is good at getting the old paint off but if it's applied straight to the aluminum cover then your going to be sanding more
i would just say use the paint thinner and soap/water if you have the non painted valve cover