TM-9-2815-225-34-P
ENGINE, DIESEL: 6 CYLINDER IN-LINE TURBOCHARGED, CUMMINS MODEL NTC-400
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JULY 2005
TM-9-2815-225-34-P - Page 24 of 736
TM 9-2815-225-34&P
0002 00
0002 00-2
EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES (Contd)
ENGINE FEATURE/CHARACTERISTIC
BIG CAM I
BIG CAM III
Camshaft
2-1/2-inch diameter camshaft with gear drive controlling all valve
and injector movement. Made of induction-hardened alloy steel.
Camshaft followers are roller-type.
Connecting Rods
Drop-forged, rifle-drilled for pressure lubrication.
Crankshaft
High-tensile steel forging. Bearing journals and fillets-induction
hardened. Fully counterweighted.
Cylinder Block
Alloy cast iron with removable wet liners.
Cylinder Heads
Each head serves two cylinders. Drilled fuel supply and return
lines. High temperature inserts on exhaust valve seats.
Turbocharger
Model T-50.
Model HT-3B has a redesigned
compressor wheel, compressor
housing, turbine wheel and
shaft, bearing housing assembly,
location of oil inlet line, and
V-bands.
Exhaust Manifold
Conventional log-type.
Pulse-type for less restriction.
Fuel System
Integral flywheel-type governor.
Injectors
Camshaft actuated top-stop type.
Intake Manifold
Conventional aftercooler.
Triple-pass water aftercooler.
Lubrication Oil Cooler
Conventional oil cooler and filter
with separately mounted bypass
oil filter on engine firewall.
Demand flow automatically
regulates oil pressure and routes
engine coolant through engine
oil cooler twice.
Engine and cooler core are made
of cast aluminum and
incorporates mounting adapters
for spin-on type full-flow and
bypass oil filters, also
incorporates a bypass valve and
pressure sending unit.
Oil Pan
Made of cast aluminum.
Made of stamped steel.
Water Transfer Tube
Made of cast iron.
Made of stamped, welded steel.
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS
Table 1. Engine Features and Characteristics.
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