ASTM_D_6923_-_14.pdf

Designation:D692314Standard Test Method forEvaluation of Engine Oils in a High Speed,Single-CylinderDiesel EngineCaterpillar 1R Test Procedure1This standard is issued under the fixed designation D6923;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONAny properly equipped laboratory,without outside assistance,can use the test procedure describedin this test method.The ASTM Test Monitoring Center(TMC)2provides calibration oils and anassessment of the test results obtained on those oils by the laboratory.By this means,the laboratorywill know whether their use of the test method gives results statistically similar to those obtained byother laboratories.Furthermore,various agencies require that a laboratory utilize the TMC services inseeking qualification of oils against specifications.For example,the U.S.Army has such a requirementin some of its engine oil specifications.Accordingly,this test method is written for those laboratoriesthat use the TMC services.Laboratories that choose not to use these services should ignore thoseportions of the test method that refer to the TMC.Information Letters issued periodically by the TMCmay modify this test method.3In addition,the TMC may issue supplementary memoranda related tothe test method.1.Scope*1.1 This test method covers stressing an engine oil undermodern high-speed diesel operating conditions and measuresthe oils deposit control,lubrication ability,and resistance tooil consumption.It is performed in a laboratory using astandardized high-speed,single-cylinder diesel engine.41.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.2.1 ExceptionsWhere there is no direct SI equivalentsuch as screw threads,national pipe threads/diameters,andtubing size,or where a sole source supplier is specified.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.Being an enginetest method,this test method does have definite hazards thatrequire safe practices(see Appendix X2 on Safety).1.4 The following is the Table of Contents:Scope1Referenced Documents2Terminology3Summary of Test Method4Significance and Use5Apparatus and Installation6Intake Air System6.2.1Exhaust System6.2.2Fuel System6.2.3Oil Consumption System6.2.4Engine Oil System6.2.5Engine Coolant System6.2.6Engine Instrumentation6.2.7Reagents and Materials7Oil Samples8Preparation of Apparatus9General Engine Assembly Practices9.1Complete Engine Inspection9.2Copper Component9.3Engine Lubricant System Flush9.4Engine Piston Cooling Jet9.5Engine Measurements and Inspections9.6Cylinder Head9.7Valve Guide Bushings9.81This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.B0 on Automotive Lubricants.Current edition approved May 1,2014.Published June 2014.Originallyapproved in 2003.Last previous edition approved in 2013 as D6923 13.DOI:10.1520/D6923-14.2ASTM Test Monitoring Center(TMC),6555 Penn Avenue,Pittsburgh,PA15206-4489.3Until the next revision of this test method,the ASTM Test Monitoring Center(TMC)will update changes in the test method by means of information letters.Information letters may be obtained from the ASTM Test Monitoring Center,6555Penn Ave.,Pittsburgh,PA 15206-4489.Attention:Administrator.This editionincorporates revisions in all information Letters through No.131.4Available from Caterpillar Inc.,Engine System Technology Development,P.O.Box 610,Mossville,IL 61552-0610.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 Fuel Injector9.9Piston and Rings9.10Cylinder Liner9.11Compression Ratio9.12Engine Timing9.13Engine Coolant System Cleaning Procedure9.14Calibration and Standardization10Test Cell Instrumentation10.1Instrumentation Standards10.2Coolant Flow10.3Fuel Injectors10.4Air Flow10.5Intake Air Barrel10.6Fuel Filter10.7Oil Scale Flow Rates10.8Test Stand Calibration10.9Re-calibration Requirements10.9.1Extending Test Stand Calibration Period10.9.2Test Run Numbering10.10Humidity Calibration Requirements10.11Calibration of Piston Deposit Raters10.12Procedure11Engine Break-in Procedure11.1Cool-down Procedure11.2Warm-up Procedure11.3Shutdowns and Lost Time11.4Periodic Measurements11.5Engine Control Systems11.6Engine Coolant11.6.1Engine Fuel System11.6.2Engine Oil Temperature11.6.3Exhaust Pressure11.6.4Intake Air11.6.5Post-Test Procedures11.7Pist