Coolant leak -hydro locked engine

hit it with WD40, wipe it off and then powder it with cornstarch or some other soft powder. If its a crack, the powder will leech out the oil in the crack and itll be obvious where the crack is. concrete driveway does same thing with oil-eater powder when it hits cracks. looks great, 5 minutes later you see all your cracks start to bleed oil again.