1. Cleaning engine parts Debris often missed Under side of intake Leading cause of bearing failure Particle contamination Oil pump pick-up screen

2. Cleaning engine parts Solvent tanks Small degreasing jobs Safe for all metals in engines

3. Cleaning engine parts Cold tanks Safe for all metals in engines Slow soaking process

4. Cleaning engine parts Hot tanks - Used for ferrous, nonferrous, or both Ferrous - caustics for iron and steel only (pH 12.5) Working assemblies may bind in hot tanks No cleaning solution dissolves carbon Rinse with water and spray with rust inhibitor Corrosion may take place after cleaning Both - detergents for all materials

5. Cleaning engine parts Ovens for degreasing Environmentally safe process Primary chamber for cleaning Exhaust afterburner to control emissions Process Primary chamber heats to 375  F to start vaporization Exhaust afterburner (1300°F) oxidizes vapors in stack Primary chamber continues to heat to 700°F for iron After cleaning, the sludge is left as ash Aluminum should be limited to 500°F Slow cooling prevents distortion

6. Cleaning engine parts Shot blasting For iron and steel only Tumble cylinder heads to remove shot or beads Shot.030” or larger Minimal labor Parts must be degreased and dry

7. Cleaning engine parts Bead blasting Parts must be degreased and dry Tumble cylinder heads to remove shot or beads Glass beads used to remove carbon Avoid threads, oil passages, and cooling passages

8. Cleaning engine parts Bead blasting with baking soda Water soluble No shot retention

9. Cleaning engine parts Tumbling small parts Small valve train parts agitated in tumbler Parts are tumbled with small media Agitation in solvent to wash away debris Protect valve stems

10. Cleaning engine parts Ultrasonic cleaning High frequency sonic generators Cleaning agents and heat add efficiency

11. Cleaning engine parts Other cleaning tools Ring groove scraper – ring grooves Wire wheel – piston tops Bore brushes – oil galleys Flare brush in a drill – combustion chambers Cold acid descalers – removing rust