Navistar INTERNATIONAL DT 466 Service Manual

10 ENGINE SYSTEMS
Engine Features
Table 2
Standard Features Optional Features
Four valves per cylinder Air compressor
Dual timing sensors Power steering pump
Replaceable piston and sleeve configuration Front cover PTO access
Gerotor lube oil pump Engine Fuel Pressure (EFP) sensor
International® common rail high-pressure injection
system
Diamond Logic® engine brake
Variable Geometry Turbocharger (VGT) Diamond Logic® exhaust brake
Exhaust Gas Recirculation (EGR)
Fuel heater
Water supply housing (Freon® compressor bracket
)
Oil pan heater
Alternator bracket
Coolant heater assembly
Control modules
Water In Fuel (WIF) separation
Water In Fuel (WIF) sensor
Inlet Air Heater (IAH) – single or dual element
Standard Features
DT 466, DT 570, and HT 570 are in-line six
cylinder
engines (medium range). Engine displ
acements are
7.6 liters (466 cubic inches) for t
he DT 466 and 9.3
liters (570 cubic inches) for the
DT 570, and HT 570.
The firing order of the cylinders
is 1–5–3–6–2–4.
The cylinder head has four valves
per cylinder for
improved air flow. Each fuel Inje
ctor is centrally
located between the four valve
s and directs fuel
over the piston bowl for impr
oved performance and
reduced emissions. The ove
rhead valve train includes
mechanical roller lifters
, push rods, rocker arms, and
dual valves that open usin
g a valve bridge.
A one piece crankcase with
stands high-pressure
loads during diesel opera
tion.
The lower end of the DT 57
0 and HT 570 engines (for
ratings above 300 hp) in
cludes a crankcase ladder
designed to absorb add
itional loads generated by
increased horsepower
. Seven main bearings support
the crankshaft for DT
466, DT 570, and HT 570
engines. Fore and a
ft thrust are controlled at the rear
bearing. Four inse
rt bushings support the camshaft
for each engine. T
he rear oil seal carrier is part of
the flywheel housi
ng. The open crankcase breather
assembly uses a road draft tube to vent
crankcase
pressure and an oil separator that ret
urns oil to the
crankcase.
The crankshaft (CKP) and camshaft
(CMP) sensors
are used by the ECM and IDM to calcu
late rpm, fuel
timing, fuel quantity, and dura
tion of fuel injection.
Two different kinds of pistons ar
e used in the in-line
engines:
• The DT 466 engine has one piece
aluminum alloy
pistons.
• The DT 570 and HT 570 engines ha
ve two piece
articulated pistons with a s
teel crown.
All pistons are mated to fract
ured cap joint connecting
rods. Replaceable wet cylin
der sleeves are used with
the pistons.
A gerotor lube oil pump, mo
unted to the front cover, is
driven directly by the cra
nkshaft. All engines use an
oil cooler and spin-on oi
l filter.
A low-pressure fuel supp
ly pump draws fuel from the
fuel tank through a fue
l filter assembly that includes
astrainer,filter elem
ent, primer pump, drain valves,
EGES-265-2
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.

Navistar INTERNATIONAL DT 466 Specifications

General

Brand	Navistar
Model	INTERNATIONAL DT 466
Category	Engine
Language	English