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Cleaning engine parts

Cleaning engine parts. Debris often missed Under side of intake. Leading cause of bearing failure Particle contamination. Oil pump pick-up screen. Cleaning engine parts. Solvent tanks Small degreasing jobs Safe for all metals in engines. Cleaning engine parts. Cold tanks

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Cleaning engine parts

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  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) • Both - detergents for all materials • Working assemblies may bind in hot tanks • Corrosion may take place after cleaning • Rinse with water and spray with rust inhibitor • No cleaning solution dissolves carbon

  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 • Shot .030” or larger • Minimal labor • Parts must be degreased and dry • Tumble cylinder heads to • remove shot or beads

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

  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

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