Область применения

1.1 This test method is commonly referred to as the Sequence VE test² and has been correlated with vehicles used in stop-and-go service prior to 1988, particularly with regard to sludge and varnish formation and valve train wear. It is one of the test methods required to evaluate oils intended to satisfy the API SJ performance category.

1.2 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in parentheses when combined with inch-pound units. Some of the figures and forms have identical numerical designations, but with the letter M following the numerical designation: these are alternative figures and forms that contain SI units.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 7.7, 7.8.9.6, 7.8.13, 7.10.2, 7.10.3.2(c), 8.3.4.2, 8.4.4.3, 8.4.5.2, 9.3.4.4, 9.6.1.2, 12.1.1.5, 12.1.4.5, 12.2.1, 12.2.1.5, Fig. A3.6, and Annex A8.

1.4 Table of Contents:

SectionScope 1Referenced Documents2Terminology3Summary of Test Method4Significance and Use5Apparatus-General Description6Apparatus-The Test Engine7Sequence VE Test Engine Parts Kit7.1Required New Engine Parts7.2Reusable Engine Parts7.3Specially Fabricated Engine Parts7.4Special Engine Measurement and Assembly Equipment7.5Miscellaneous Engine Components-Preparation7.6Solvents and Cleansers Required7.7Assembling the Test Engine-Preparations7.8Assembling the Test Engine-Installations7.9Engine Installation on the Test Stand7.10Engine Fluids-Supply/Discharge Systems8Intake Air8.1Fuel8.2Engine Oil8.3Coolants8.4Measurement Instrumentation9Temperatures9.1Pressures9.2Flow Rates9.3Fuel Consumption9.4Speed and Load9.5Exhaust Gas9.6Miscellaneous Laboratory Equipment10Test Stand Calibration11Verification11.1Unacceptable Calibration Tests11.2Test Stand Modifications11.3Reference Oil Accountability11.4Test Numbering System11.5Procedure12Pre-Test Procedure12.1Engine Operating Procedure12.2Periodic Measurements and Functions12.3Special Maintenance Procedures12.4Diagnostic Data Review12.5End of Test Procedure12.6Interpretation of Results13Parts Rating Area-Environment13.1Sludge Ratings13.2Varnish Ratings13.3Clogging13.4Sticking13.5Wear Measurements13.6Assessment of Test Validity14Average Exhaust Gas NOX Levels14.2Used Oil Analyses14.3Blowby Flow Rate14.4Intake Manifold Vacuum14.5Fuel Consumption Rate14.6Oil Consumption14.7Report 15Report Format15.1Special Forms for Automated Data Acquisition15.2Standard Report15.3Calibration Test Report15.4Precision and Bias16Precision16.1Bias16.2ANNEXESSpecial Service Tools for the Test EngineA1External Oil Heat Exchanger Cleaning TechniqueA2Detailed Specifications and Photographs of ApparatusA3Engine Part Number ListingA4Operational Data Log SheetsA5Rating WorksheetsA6Final Report Forms and PhotographsA7Safety PrecautionsA8Automatic Data AcquisitionA9Oakite 811 Monitoring ProgramA10Test Precision-Reference OilsA11Control Chart Technique for Severity AdjustmentA12Statistical Equations for Mean and Standard Deviation A13Data DictionaryA14One-half Millimetre Oversize Piston ModificationsA15Required Inspections and Operations for Reuse of Cylinder HeadsA16APPENDIXESEngine Measurement SheetsX1Sources of Materials and InformationX2Analysis of Phillips "J" Fuel (Batch 26)X3Theoretical Exhaust Gas Relationships-Phillips "J" FuelX4Description of Scott Quarterly Gas Audit ServiceX5