EFFECTS OF ENGINE OIL ADDITIVES AND CARBON PARTICLES ON VALVE TRAIN WEAR OF DIESEL ENGINES

This paper deals with the effect of engine oil additives, carbon particles and rocker arm materials on the valve train wear of diesel engines. The tests were performed with an ISUZU 1.8L OHC type diesel engine powered by the motored engine method. The sixteen experimental oil formulations were based on the orthogonal method of experimental design. The results were obtained as follows: (1) It was confirmed there were main effects and interactions between each additive component for the valve train wear with a statistical analysis. (2) The failure phenomena and anti-wear properties of the valve train were affected by the additive components, rocker arm materials and carbon particles. The type of zinc dithiophosphate was a very important factor in the valve train wear.

  • Availability:
  • Supplemental Notes:
    • Reprinted from SP-558 Lubricant and Additive Effects on Engine Wear. Fuels and Lubricants Meeting San Francisco, California, October 31-November 3, 1983.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Yoshihara, T
    • Wakizono, T
    • Hara, H
    • Nakagawa, E
  • Publication Date: 1983

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 16 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00387429
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 831759 Reprint, HS-036 786
  • Files: HSL, USDOT
  • Created Date: Aug 30 1984 12:00AM