Join Date: Jun 2002
Location: Riverdale,Ga. U.S.A.
Bead blasting was the standard in cleaning parts until about 20 years ago. Since then, ovens and better chemicals have become more common. As long as you don't stay in one spot there is little chance of damaging anything and beads will remove anything to be found. Cleaning bolt holes and the water passages can be challanging and may require several cycles of cleaning. An air source and blow nozzle are helpful also (be sure to wear safety glasses).