Designation:D6201−04(Reapproved2014)StandardTestMethodforDynamometerEvaluationofUnleadedSpark-IgnitionEngineFuelforIntakeValveDepositFormation1ThisstandardisissuedunderthefixeddesignationD6201;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversanenginedynamometertestprocedureforevaluationofintakevalvedepositformationofunleadedspark-ignitionenginefuels.2ThistestmethodusesaFordRanger2.3Lfour-cylinderengine.Thistestmethodincludesdetailedinformationregardingtheprocedure,hardware,andoperations.1.2TheASTMTestMonitoringCenter(TMC)3isrespon-sibleforengineteststandcalibrationaswellasissuanceofinformationlettersaftertestmethodmodificationsareap-provedbySubcommitteeD02.A0andCommitteeD02.UsersofthistestmethodshallrequestcopiesofrecentinformationlettersfromtheTMCtoensureproperconductofthetestmethod.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesinparenthesesareprovidedforinforma-tiononly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddetermineapplicabilityofregulatorylimitationspriortouse.Specificwarningstate-mentsaregiventhroughoutthistestmethod.1.5Thistestmethodisarrangedasfollows:SubjectSectionScope1ReferencedDocuments2Terminology3SummaryofTestMethod4SignificanceandUse5Apparatus6LaboratoryFacilities6.1EngineandCylinderHeadBuild-UpandMeasurementArea6.1.1EngineOperatingArea6.1.2SubjectSectionFuelInjectorTestingArea6.1.3IntakeValveRinsingandPartsCleaningArea6.1.4PartsRatingandIntakeValveWeighingArea6.1.5TestStandLaboratoryEquipment6.2TestStandConfiguration6.2.1DynamometerSpeedandLoadControlSystem6.2.2IntakeAirSupplySystem6.2.3ExhaustSystem6.2.4FuelSupplySystem6.2.5EngineControlCalibration6.2.6Ign...
