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Page Title: ENGINE ASSEMBLY-continued
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Cylinders: (continued)
1,2,3,4,5,6
Numbering (from front) . . . . . . . . . . . . . . . . . . . . . . . . . .
1,5, 3,6,2,4
Firing order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4.31 in.
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..4.87 in.
20:1
Compression ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement . . . . . . . . . . . . . . . . . . . . . . . . . 71.l cu in. per cylinder
Cooling:
T.r. e . . . . . . . . . . . . . . . . . . . forced circulation, pressure type, thermostat,
u
engine belt drive water pump, and fan
. . . . . . . . . . . . . . . . .  180 F to 200" F
Engine operating temperature (normal)
Control:
Type . . . . . . . . . . . . . . . . . . . . . . thermostat, spring and cartridge type
Opening range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180" F
Fully open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200" F
Engine capacity (coolant) . . . . . . . . . . . . . . . . . . . . . . . . . .  19- 1/2 qts
Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . centrifugal type
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 "V" wedge belts
Capacity (pump) . . . . . . . . . . . . . . . . . . . . .  75 gpm at 2600 rpm and 180 F
. . . . . . . . . . . . . . . . . . . . . . . 6 blade
Fan
Drive (from crankshaft). . . . . . . . . . . . . . . . . . . . . . . . . clutch drive from face of flywheel `
Crankshaft rotation (viewed from front) . . . . . . . . . . . . . . . . . . . . . . clockwise
Camshaft rotation (viewed from front) . . . . . . . . . . . . . . . . . . . counterclockwise
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  compression
Fuel system:
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  fuel injection, compression ignition
Air flow (at rated power and speed). . . . . . . . . . . . . . . . . . . . . . .  410 cfm
Fuel:
Compression ignition . . . . . . . . . . . . . . . . . . . . . . . . . . MIL-F-46005
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  VV-F- 800
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MIL-G-3056
NOTE. Do not use high octane action gasoline.
Supply pressure (minimum at injection pump inlet at 2600 rpm) . . . . 35 psi min at 2600 rpm
Consumption (at rated power and speed):
Compression ignition fuel (MIL-F-46005) . . . . . . . . . . . . . . . . . . . 56 lb/hr
Diesel fuel (VV-F-800) . . . . . . . . . . . . . . . . . . . . . . . . . . . 611lb/hr
Gasoline (MIL-G-3056) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .501b/hr
Consumption (at idle w/Diesel fuel) . . . . . . . . . . . . . . . . . . . . . . . 2 lb/hr
Injection pump timing (static-retarded advance unit) . . . . . . . . . . . . . . 27 deg btdc
Injection pump automatic advance . . . . . . . . . . . . . . . . . . . . . . . . .8deg
Valve timing (sequence - cold clearance intake valve O. 015-in. ,
exhaust valve O. 025-in. ):
Intake opens. . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..6 deg btdc
Intake remains open . . . . . . . . . . . . . . . . . . . .. . . . . . . ..216 deg
Intake closes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30 deg abdc
Exhaust opens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..36degbbdc
Exhaust remains open..... . . . . . . . . . . . . . . . . . . . . . . ..218deg
Exhaust closes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 deg atdc
Valves:
Type and number . . . . . . . . . . . . . . . . . . . . . .overhead (two per cylinder)
Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..0.450in.
Clearance (cold engine):
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0.025 in.
Intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0.015 in.
19

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