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1.1 This engine lubricant test method is commonly referred to as the Roller Follower Wear Test. Its primary result, roller follower shaft wear in the hydraulic valve lifter assembly, has been correlated with vehicles used in stop-and-go delivery service prior to 1993. It is one of the test methods required to evaluate lubricants intended to satisfy the API CG-4 performance category. This test has also been referred to as the 6.2 L Test.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.2.1 ExceptionsWhere there is no direct SI equivalent, such as pipe fittings, thermocouple diameters, and NPT screw threads. Also, roller follower wear is measured in mils.

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.

1.4 Table of Contents:

Section
Scope 1
Referenced Documents 2
Terminology 3
Summary of Test Method 4
Significance and Use 5
Reagents 7
Guidelines on Substitution 7.1
Apparatus 6
Preparation of Apparatus 8
New Engine Preparation 8.1
Installation of Auxiliary Systems and
Miscellaneous Components
8.2
Test Procedure 9
Description of Test Segments and Organization
of Test Procedure Sections
9.1
Engine Parts Replacement 9.2
Engine Starting Procedure 9.3
Normal Engine Shutdown Procedure 9.4
Emergency Shutdown Procedure 9.5
Unscheduled Shutdown and Downtime 9.6
New Engine Break-In 9.7
Pretest Procedure 9.8
Fifty-Hour Steady State Test 9.9
Periodic Measurements 9.10
Oil Sampling and Oil Addition Procedures 9.11
End of Test (EOT) Procedure 9.12
Calculation and Interpretation of Test Results 10
Environment of Parts Measurement Area 10.1
Roller Follower Shaft Wear Measurements 10.2
Oil Analysis 10.3
Assessment of Test Validity 10.4
Final Test Report 11
Reporting Calibration Test Results 11.1
Report Forms 11.2
Interim Non-Valid Calibration Test Summary 11.3
Severity Adjustments 11.4
Precision and Bias 13
Precision 13.1
Precision Estimate 13.2
Bias 13.3
Keywords 14
ANNEXES
Guidelines for Test Part Substitution or Modification Annex A1
Guidelines for Units and Specification Formats Annex A2
Detailed Specifications of Apparatus Annex A3
Calibration Annex A4
Final Report Forms Annex A5
Illustrations Annex A6
Kinematic Viscosity at 100°C Procedure for the
Roller Follower Wear Test
Annex A7
Enhanced Thermal Gravimetric Analysis (TGA)
Procedure for Soot Measurement
Annex A8
Sources of Materials and Information Annex A9
APPENDIXES
PC-9 Reference Diesel Fuel Properties Appendix X1
Diagnostic Data Review Appendix X2

Product Details

Published:
04/15/2009
Number of Pages:
18
File Size:
1 file , 330 KB
Redline File Size:
2 files , 570 KB