Is that what it is, castor gunk? Castor oil? It cleaned up real easy. i used old nitro fuel and a brush, most came off. Then I used some acetone and the rest came off. A red goo? Maybe nitro residue with rust suspended in it? No staining or pitting. The crank actually had stain from rust. I used the steel wool on that but it was really fine and didn't remove the stain. The bearings cleaned real nice, oiled with after run oil and are very smooth.

Is this the result of someone not using after run oil? Is the red goo something to do with oil in the nitro? It ony ran pink fuel in it. Castor gunk? Is the oil in nitro castor oil?

I have yet to run it. But soon. I appreciate everyones input, thanks.