Engine International VT365. Manual — part 3

ENGINE SYSTEMS

9

Engine Description

Table 1

Engine Features and Specifications

International® VT 365 engine features and specifications

Engine

Diesel, 4 cycle

Configuration

4 OHV/1 Cam-in-Crankcase-V8

Displacement

365 cu. in (6.0L)

Bore and stroke

95 mm x 105 mm (3.74 in x 4.134 in)

Compression ratio

18.0:1

Aspiration

VGT turbocharged and Charge Air Cooling (CAC)

Rated power @ rpm

1

175 bhp @ 2600 rpm

Peak torque @ rpm

1

460 lbf•ft @ 1400 rpm

Engine rotation, facing flywheel

Counterclockwise

Combustion system

Digital Direct Injection (DDI)

Total engine weight (auto with oil)

459 kg (1094 lb)

Cooling system capacity (engine only)

10.2 liters (10.8 qts)

Lube system capacity (including filter)

18 liters (19 qts)

Lube system capacity (dry)

21.8 liters (23 qts)

Firing order

1–2–7–3–4–5–6–8

1

Base rating shown. See Appendix A for other ratings.

Major features

Air Management System (AMS)

•

Variable Geometry Turbocharger (VGT)

•

Exhaust Gas Recirculation (EGR) system

•

Chassis mounted Charge Air Cooling (CAC)

Digital Direct fuel Injection (DDI)

Two piece crankcase

One piece cylinder head with four valves per cylinder

Dual timing

Rear gear train

Closed crankcase ventilation

Oil cooler

The firing order is 1-2-7-3-4-5-6-8. When viewing the
engine from the rear (flywheel end), the right side
cylinders are numbered 1, 3, 5, and 7. Number one
is the front position. The left side is numbered 2, 4, 6,
and 8.

A two piece crankcase has been specially designed
to withstand the loads of diesel operation. The lower
crankcase has integral main bearing caps. Coolant
and oil passages are cast and machined in the
crankcase and front cover housing.

The crankshaft has five main bearings with fore and
aft thrust controlled at the upper half of the number 4
main bearing. Two connecting rods are attached to
each crankshaft journal. The piston pin moves freely
inside the piston and rod. Piston pin retaining rings
secure the piston pin within the piston.

10

ENGINE SYSTEMS

One piece aluminum alloy pistons are fitted with
one keystone cut compression ring, one rectangular
intermediate compression ring, and a two piece oil
control ring.

The combustion bowl (in the piston

crown) reduces exhaust emissions.

The camshaft is supported by five insert bushings
pressed into the crankcase.

Two cam lobes, cam

followers, push rods and valve bridges control four
valves per cylinder.

The camshaft is gear driven

from the rear end of the crankshaft. A thrust flange
is located between the camshaft gear and the
crankcase. Camshaft thrust is controlled with the rear
surface of the number 5 cam journal and the cam
gear.

Hydraulic cam followers maintain zero valve lash
and minimize engine noise. This eliminates periodic
adjustment of valve lash. The hydraulic cam followers
have rollers which provide excellent cam lobe and
cam follower durability.

The lubrication system uses a crankshaft driven
gerotor pump mounted on the front cover. The oil
pressure regulator is built into the front cover and
is accessible from outside the engine.

Lube oil is

routed through an oil cooler equipped with a pressure
controlled bypass valve.

Lube oil moves through

passages in the crankcase to lubricate all internal
components and to supply the piston cooling tubes
and high pressure pump reservoir. The VGT and air
compressor use external oil lines.

The VGT is electronically controlled and hydraulically
actuated. The VGT provides boost control at low and
high speeds for improved throttle response.

An exhaust gas recirculation valve allows water
cooled exhaust gases to be fed into the inlet air
stream to reduce exhaust emissions.

A closed crankcase breather system recirculates
crankcase vapors back into the intake air system.

A chassis mounted Charge Air Cooler (CAC), an
air-to-air heat exchanger, increases the density of the
air charge.

Engine operation is controlled by two engine mounted
control modules:

•

Electronic Control Module (ECM)

•

Injector Drive Module (IDM)

The ECM receives signals from engine and chassis
mounted sensors.

The ECM controls engine

operation with the following actuators:

•

IPR

•

VGT control valve

•

EGR

•

Glow plug relay

The IDM controls fuel injector operation using data
from the ECM.

ENGINE SYSTEMS

11

Engine Component Locations

Figure 5 Engine components – Front

1.

Manifold Absolute Pressure
(MAP) sensor

2.

Lube oil pressure test port

3.

Fuel filter assembly

4.

Fuel return

5.

Fuel supply

6.

Engine Coolant Temperature
(ECT) sensor

7.

Port for coolant deaeration tank

8.

Coolant outlet and thermostat

9.

Front cover assembly

10. Crankshaft vibration damper
11. Coolant inlet
12. Water pump pulley

12

ENGINE SYSTEMS

Figure 6 Engine components – Left

1.

Fuel filter drain lever

2.

Engine Control Module (ECM)

3.

Injector Driver Module (IDM)

4.

Exhaust Back Pressure (EBP)
sensor

5.

Valve cover

6.

Rear cover

7.

Exhaust manifold

8.

Camshaft Position (CMP) sensor

9.

Glow plug harness

10. Engine Coolant Temperature

(ECT) sensor

11. Lube oil fill tube