When I painted my 400 I brushed the crank casing surfaces with thinners, used clean absorbent paper to dab off any dirt that appeared then a final coat of thinners - when dry I Rattled Caned them - then air dried only. This time I plan to oven bake as per the paint instructions.
I have it in my mind that someone on this site mentioned using brake & clutch cleaning fluid instead - I have a 5 litres can of that if it's better in some way ?
