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

Importancia y uso:

5.1 This test method evaluates an automotive engine oil's lubricating efficiency in inhibiting timing-chain lengthening under operating conditions selected to accelerate timing-chain wear. Varying quality reference oils of known wear performance were used in developing the operating conditions of the test procedure.

5.2 The test method can be used to screen lubricants for satisfactory lubrication of an engine timing chain and has application in gasoline, automotive, engine-oil specifications. It is expected to be used in specifications and classifications of engine lubricating oils, such as the following:

5.2.1 ILSAC GF-6.

5.2.2 Specification D4485.

5.2.3 SAE Classification J183.

Subcomité:

D02.B0

Referida por:

D4485-24, D8291-25

Volúmen:

05.05

Número ICS:

43.040.01 (Road vehicle systems in general)

Palabras clave:

blowby; chain elongation; chain wear; engine oil; ramp; timing chain; turbocharger;