Greenley
Well Known Member
Almost ready to reassemble my IO-540 but need help with a gasket problem. The oil sump (magnesium), has a thin layer (a few thousands) of remains of the old gasket, very hard, and I need to clean this off. I have tried to sharpen the edge of some hard plastic, but it doesn't touch it. I would be tempted to forget it, but there are spots where it did come off, so it is not smooth. Is there any kind of solvent that will soften this, or any other suggestions?