Japanese researchers have completed a study on carbon fouling of spark plugs. This type of fouling has been found to occur in new cars during their pre-deliverY transportation movements and repeated short trips by users in cold climate areas. The study revealed that deposits produced under cold starting conditions accumulated on the firing tip of the insulator and had a high electrical conductivity. Accumulation of carbon on the insulator depends on the degree of flame propagation into the "plug pocket." By changing the configuration of this plug pocket, flame penetration can be delayed or checked and carbon fouling may be eliminated.

Media Info

  • Pagination: p. 59-63
  • Serial:
    • Automotive Engineering
    • Volume: 88
    • Issue Number: 6
    • Publisher: Society of Automotive Engineers (SAE)
    • ISSN: 0098-2571

Subject/Index Terms

Filing Info

  • Accession Number: 00325019
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: HS-029 534
  • Files: TRIS
  • Created Date: Apr 15 1981 12:00AM