The head gasket was leaking.

There is a lot of nasty emulsified goop left and I wanted your helpful suggestions for cleaning the engine without removing the sump. The engine is still in the truck and I know how hard it will be for me to reseal the sump insitu.
My idea so far is to pour kerosine into the sump , let it soak for a day , then feed an air line down and let metered air bubble thru for a while to agitate the mess , drain and repeat .........