long story short, buddy of mine used a scotch brite wheel on a die grinder and now i need to flush the motor bc he didnt cover the lifter valley real good. he just used it on the heads for the intake mating surface. I vacuumed it out the best i could and then flooded the lifter valley with brake cleaner to hopefully flush as much of the aluminum oxide particals out. I also took the oil pan off and going to spray down as much as i can to flush it out. Is this a good flush or is there something else i should do/ something else i should use besides brake cleaner?