Apex Seal Wear in a Mazda Rotary Engine-Effects of Fuel and Lubricant Properties Utilizing Radioisotope Test Techniques

This paper presents a study of apex seal wear utilizing radioisotope test techniques. Test data showing the effects of lubricant viscosity and quantity and the influence of various engine oil and fuel additives on apex seal wear are presented. Radioisotope test data are compared to seal wear results of long-duration tests to demonstrate the validity of radioisotope test results.