ASTM D8279-22a
Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine

Standard No.

ASTM D8279-22a

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D8279-23

Latest

ASTM D8279-23a

Scope

1.1 Undesirable timing-chain wear has been observed with gasoline, turbocharged, direct-injection (GTDI) engines in field service, and data from correlating laboratory engine tests have shown that chain wear can be affected by appropriately formulated engine lubricating. A laboratory engine test has been developed to provide a means for screening lubricating oils for that specific purpose. The laboratory engine test is 216 h in length, conducted under varying conditions, and the increase in timing-chain length determined at the end of test is 1 This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee D02.B0 on Automotive Lubricants. Current edition approved Sept. 1, 2022. Published September 2022. Originally approved in 2019. Last previous edition approved in 2021 as D8279 – 22. DOI: 10.1520/D8279-22A. 2 Until the next revision of this test method, the ASTM Test Monitoring Center will update changes in the test method by means of information letters. Information letters may be obtained from the ASTM Test Monitoring Center, 203 Armstrong Drive, Freeport, PA 16229. Attention: Director. This edition incorporates revisions in all Information Letters through No. 22-1. *A Summary of Changes section appears at the end of this standard Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. 1 the primary result. This test method is commonly known as the Sequence X, Chain Wear (CW) Test. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.2.1 Exception—Where there is no direct SI equivalent such as screw threads, national pipe threads/diameters, tubing size, or specified single source equipment. 1.3 Table of Contents: Section Scope 1 Referenced Documents 2 Terminology 3 Summary of Test Method 4 Significance and Use 5 Apparatus 6 Test Engine 6.1 Reagents and Materials 7 Preparation of Apparatus 8 Timing-chain Preparation, Installation, and Measurement 8.20 Test Stand Installation 8.21 Electronic Throttle Controller 8.21.17 Temperature Measurement 8.23 Pressure Measurement 8.24 Flowrate Measurement 8.25 Blowby Flowrate 8.26 Stand Calibration 9 Test Procedure 10 Pre-Test Procedure and Engine Break-In 10.1 Engine Start-up Procedures 10.2 Test Sequence 10.3 Engine Shutdown Procedures 10.4 Blowby Flowrate Measurement 10.5 Parameter Logging 10.6 Oil Consumption Calculation 10.7 General Maintenance 10.8 Special Maintenance Procedures 10.9 Blowby Flowrate Adjustment 10.10 Diagnostic Data Review 11 Test Results 12 Report 13 Precision and Bias 14 Keywords 15 ANNEXES ASTM TMC Organization Annex A1 ASTM TMC: Calibration Procedures Annex A2 ASTM TMC: Maintenance Activities Annex A3 ASTM TMC: Related Information Annex A4 Engine and Stand Parts Annex A5 Safety Precautions Annex A6 Engine Rebuild Templates Annex A7 Engine Build Records Annex A8 Cylinder Head Build A8.1 Cylinder Bore Measurement A8.2 Bearing Journal Measurements A8.3 Engine Part Photographs, Schematics and Figures Annex A9 Control and Data Acquisition Requirements Annex A10 Dipstick Oil Level to Charge Conversions Annex A11 Sequence X Report Forms and Data Acquisition Annex A12 APPENDIXES Sources of Materials and Information Appendix X1 Suggested Designs for Engine Fixing Brackets Appendix X2 1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D8279-22a Referenced Document

• ASTM D235 Standard Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvent)
• ASTM D4175 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants*， 2023-07-01 Update
• ASTM D445 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (the Calculation of Dynamic Viscosity)
• ASTM D4485 Standard Specification for Performance of Active API Service Category Engine Oils
• ASTM D4739 Standard Test Method for Base Number Determination by Potentiometric Titration
• ASTM D5185 Standard Test Method for Determination of Additive Elements, Wear Metals, and Contaminants in Used Lubricating Oils and Determination of Selected Elements in Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)
• ASTM D5967 Standard Test Method for Evaluation of Diesel Engine Oils in T-8 Diesel Engine
• ASTM D6304 Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration
• ASTM D6593 Standard Test Method for Evaluation of Automotive Engine Oils for Inhibition of Deposit Formation in a Spark-Ignition Internal Combustion Engine Fueled with Gasoline and Operated Under Low-Temperature
• ASTM D664 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
• ASTM D8047 Standard Test Method for Evaluation of Engine Oil Aeration Resistance in a Caterpillar C13 Direct-Injected Turbocharged Automotive Diesel Engine*， 2023-03-01 Update
• ASTM D8291 Standard Test Method for Evaluation of Performance of Automotive Engine Oils in the Mitigation of Low-Speed, Preignition in the Sequence IX Gasoline Turbocharged Direct-Injection, Spark-Ignition Engin*， 2023-11-01 Update

ASTM D8279-22a history

• 2023 ASTM D8279-23a Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
• 2023 ASTM D8279-23 Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
• 2022 ASTM D8279-22a Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
• 2022 ASTM D8279-22 Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
• 2021 ASTM D8279-21e1 Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
• 2021 ASTM D8279-21 Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
• 2020 ASTM D8279-20a Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
• 2020 ASTM D8279-20 Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine
• 2019 ASTM D8279-19 Standard Test Method for Determination of Timing-Chain Wear in a Turbocharged, Direct-Injection, Spark-Ignition, Four-Cylinder Engine