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Wear, Scuffing, and Spalling in Passenger-Car Engines
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Abstract
RESULTS of a laboratory study of some of the factors causing wear, scuffing, and spalling in passenger-car engines, with emphasis on the lubricating oil variables involved, are reported in this paper, which is part of the Symposium on Cam and Tappet Wear.
The tests show that piston-ring and valve-lifter wear and spalling of some valve-lifter materials seem to be greater with low-viscosity oils such as SAE 5W-20 and 10W.
Certain antiwear lubricating oil additives reduce valve-lifter and ring wear but may increase spalling of chilled iron lifters. However, using an oil with good antiwear properties for engine break-in will not prevent future lifter wear if the engine is operated with an oil of poor antiwear characteristics.
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Citation
Ambrose, H. and Taylor, J., "Wear, Scuffing, and Spalling in Passenger-Car Engines," SAE Technical Paper 550244, 1955, https://doi.org/10.4271/550244.Also In
References
- Eaton Engineering Forum Vol. XIV December 1953 2 14 “A Question and Answer Discussion of Valve-Gear Problems,” Ayres. Vincent
- “Progress Report on API Service Classifications and Designations for Lubricating Oils for Automotive-Type Engines,” Mougey. H. C. Presented at API Lubrication Committee Meeting White Sulphur Springs W. Va. May 11–13 1953
- “Engine Wear, as Affected by Lubricants,” Mougey. H. C. Presented at Symposium on Engine Lubricants, Technical Committee B, ASTM Committee D-2 Atlantic City July 1 1953
- SAE Transactions Vol. 62 1954 196 209 “Forty Years of Progress in Automotive Lubrication — A Look into the Future,” Mougey. H. C.