ASTM D7583 Standard Test Method for John Deere Coolant Cavitation Test
4. Summary of Test Method
4.1 This test engine is a John Deere six-cylinder 10.1 L (6101H). Test operation includes a 19-min engine break-in, a 20-h coolant break-in, and 230-h in five cyclic steps.
4.2 Prior to each test, the engine is cleaned and assembled with new cylinder liners and gaskets.
4.3 The test stand is equipped with the appropriate instrumentation to control engine speed, fuel flow, and other operating parameters.
4.4 Coolant performance is characterized by determining the total liner pit count area.
5. Significance and Use
5.1 This test method was developed to evaluate the ability of a heavy-duty diesel engine coolant to provide protection against damage resulting from a phenomenon known as cylinder liner cavitation corrosion.
5.2 This test method may be used for engine coolant specification acceptance when all details of this test method are in compliance.
5.3 The design of the engine used in this test method is a production OEM diesel engine modified to consistently produce the operating conditions that accelerate damage from cylinder liner cavitation. This factor, along with the accelerated operating conditions needs to be considered when extrapolating test results.
