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Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IVA Spark-Ignition Engine
Automatische name übersetzung:
Standard Test Method for Evaluation der Automobilmotorölein der Sequence IVA -Ottomotor
NORM herausgegeben am 1.10.2015
Bezeichnung normen: ASTM D6891-15
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.10.2015
SKU: NS-618472
Zahl der Seiten: 48
Gewicht ca.: 144 g (0.32 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
cam lobe wear, crankcase oils, lubricants, valve-train wear,, ICS Number Code 75.100 (Lubricants, industrial oils and related products)
Significance and Use | ||||||||||||||||||||||||||||||||||
5.1 This test method was developed to evaluate automotive lubricant’s effect on controlling cam lobe wear for overhead valve-train equipped engines with sliding cam followers. Note 1: This test method may be used for engine oil
specifications, such as Specification D4485, API 1509, SAE J183, and ILSC GF
3.
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1. Scope | ||||||||||||||||||||||||||||||||||
1.1 This test method measures the ability of crankcase oil to control camshaft lobe wear for spark-ignition engines equipped with an overhead valve-train and sliding cam followers. This test method is designed to simulate extended engine idling vehicle operation. The Sequence IVA Test Method uses a Nissan KA24E engine. The primary result is camshaft lobe wear (measured at seven locations around each of the twelve lobes). Secondary results include cam lobe nose wear and measurement of iron wear metal concentration in the used engine oil. Other determinations such as fuel dilution of crankcase oil, non-ferrous wear metal concentrations, and total oil consumption, can be useful in the assessment of the validity of the test results.2 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 Exceptions—Where there is no direct SI equivalent such as pipe fittings, tubing, NPT screw threads/diameters, or single source equipment specified. 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. See Annex A9 for specific safety precautions. |
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2. Referenced Documents | ||||||||||||||||||||||||||||||||||
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