Assuming you've already got the crank and spider separate, and you're just looking to clean up the surfaces, I'd remove big lumps mechanically (i.e. proddle them out of the way with a pointy thing) and then clean up the remaining traces with MEK or acetone. MEK works better, but is much smellier. And not everyone has it.
Assuming you've already got the crank and spider separate, and you're just looking to clean up the surfaces, I'd remove big lumps mechanically (i.e. proddle them out of the way with a pointy thing) and then clean up the remaining traces with MEK or acetone. MEK works better, but is much smellier. And not everyone has it.