TM-9-2815-200-35
ENGINE, WITH CONTAINER:TURBOSUPERCHARGED, DIESEL ,FUEL INJECTION ,90-DEGREE “V” TYPE, AIR - COOLED ,12 - CYLINDER , ASSEMBLY ;MODELS AVDS-1790-2M (2815-856-4996), AVDS-1790-2A AND AVDS-1790-2AM (2815-856-9005)
TECHNICAL MANUAL; DIRECT SUPPORT, GENERAL SUPPORT AND DEPOT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS
TM-9-2815-200-35 - Page 543 of 779
CHAPTER 8
ENGINE TEST AND ENGINE CONTAINER
Section I. ENGINE TEST AND ADJUSTMENTS
8-1. Engine Specifications
a. Speed Range .
The engine must operate
satisfactorily under all loads through a speed
range of 1400 to 2400 rpm and must idl e
satisfactorily at 675 to 725 rpm.
b. Gross Horsepower (Without Accessories).
Under full throttle setting, engine will develop
750, plug or minus 15, gross horsepower at 2400
rpm, using fuel conforming to specification VV -
F-800 (DF-2) and the correction factor s
provided in tables 8-2 through 8-5.
c. Gross Torque (Without Accessories) .
Under full throttle setting, engine will develop
the following gross torque using fuel conforming
to Specification VV-F-800, DF-2.
(1) 1720 lbs/ft . - plus or minus 2.0%
@ 1800 rpm.
(2) 1635 lbs/ft . - plus or minus 2.0%
@ 2400 rpm.
d. Oil Consumption.
Engine shall not con-
sume more than 0.0075 pounds per brak e
horsepower hour (lbs / bhp / hr) of lubricating
oil when operating under full load and using
engine oil conforming to Military Specification
MIL-L-45199 Grade 2 (SAE 30).
e.
Fuel Consumption (Without Accessories).
When operating at full throttle under full load,
on a dynamometer, at a speed of 2400 rpm,
engine shall consume not more than 0.42 0
pounds per brake horsepower hour (lbs /
bhp / hr) fuel conforming to Specificatio n
VV-F-800 (DF-2).
f. Exhaust Gas Temperature.
Exhaust ga s
temperatures, measured at individual cylinder
ports, shall not exceed 1250” F. Temperature
variation between cylinders shall not exceed
g. Blow-by Pressure.
With engine under full
throttle and full load, blow-by shall not exceed
18 cfm.
h.
Lubricating Oil Temperature.
Tem -
perature of oil in the engine pan sump shall not
exceed 230 F. Temperature of oil entering the
engine through the oil pump shall be maintained
between 160°F and 22°F.
i. Oil Pressure.
(1) Engine oil pressure shall not be more
than 70 psi or less than 40 psi when engine is
operating at 2400 rpm, and shall not be less than
15 psi when engine is idling at 675 to 725 rpm,
measured at and / or adjacent to the oil pressure
sending unit, with the oil temperature of 160°F
to 180°F, using engine oil specified in paragraph
d, above.
(2) Piston oiler nozzle oil pressure shall be
35 psi minimum at 2400 rpm measured at plug
on left side of crankcase, at rear, above starter.
j. Temperatures.
The preferred induction air
inlet temperature is 85°F plus or minus 10 F.
k. Fuel Pressure.
The fuel pressure at the
injection pump inlet shall be 30-40 psi at engine
speeds of 1800 to 2400 rpm.
l.
Manifold Pressure.
Intake manifold
pressure rise above atmospheric after the tur-
bosupercharger with boost, shall not exceed 35
inches Hg.; without boost 28 to 32 inches Hg.
Variation between left and right banks shall not
exceed 4 inches Hg.
m .
Exhaust Smoke Density Test .
Th e
maximum exhaust smoke density at full power
position, when measured within one foot of the
exhaust outlet, shall not exceed the following
conditions when using fuel in accordance with
150°F .
grade DF-2 of Specification VV-F-800.
8-1
Back to Top
