MIL-DTL-46796 Engine, Diesel: 8 Cylinder, V-Type 390 To 440 H.P.This specification covers several 8 cylinder, V-type, liquid-cooled, 2-stroke-cycle, turbo-supercharged, internal-combustion, compression ignition engines for use in military vehicles \(see 6.1\). The basic design of these engines is very similar and the characteristic differences have been classed as Type I or Type II for the lower or the higher power versions.

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MIL-DTL-46796D

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM D975

Standard Specification for Diesel Fuel Oils.

(Application for copies should be addressed to the American Society for Testing and Materials,

100 Barr Harbor Drive, West Conshohocken, PA 19248-2959 or https://www.astm.org.)

NATO INTERNATIONAL STAFF - DEFENSE SUPPORT DIVISION

NATO AEP 5

NATO Standard Diesel and Spark Ignition Engines

Laboratory Test.

(Application for copies should be addressed to NATO, Military Agency for Standardization

(MAS), 35 Chesham Place, London SWI, England or https://nsa.nato.int/nsa/.)

2.4 Order of precedence. In the event of a conflict between the text of this document and

the references cited herein, the text of this document takes precedence. Nothing in this

document, however, supersedes applicable laws and regulations unless a specific exemption has

been obtained.

3. REQUIREMENTS

3.1 First article. When specified (see 6.2), a first article sample shall be subjected to first

article inspection in accordance with 4.2.

3.2 Materials. Unless specified herein, materials used shall be in accordance with the

manufacturer s materials specifications for 390 to 440 horsepower (hp) diesel engines. The

materials shall be capable of meeting all of the operational and environmental requirements

specified herein (see 4.6.1). Recovered materials shall be used to the maximum extent

practicable.

3.2.1 Metals. All metals used in the construction of the engines shall be of a corrosion

resistant type or shall be suitably protected to resist corrosion during the normal service life of

the engines. The use of dissimilar metals in intimate metal to metal contact shall be avoided.

3.3 Environmental requirements. The engine shall start within 2 minutes and shall

demonstrate the performance characteristics specified herein under any of the following

conditions or possible combination of conditions (see 4.6.3).

3.3.1 Temperature start conditions.

3.3.1.1 Low temperature start without external aids. With integral cold starting aid and

without external aids after being cold soaked, without benefit of solar radiation, to an ambient

temperature of -25 degrees Fahrenheit (F) (-31.6 degrees Celsius (C)) (see 4.6.3.1.1).