CHAPTER 7
MAIN
SPECIFICATIONS AND PERFORMANCE
1
MAIN SPECIFICATIONS
Model: 4DQ50
Uses:
For motor vehicles, construction machine,
general
power
etc.
Type:
4-cycle, water-cooled, swirl chamber type
Diesel
Cylinder No. - arrangement: 4-in-line
Cylinder bore x stroke:
84mmrP
x 94mm
Piston displacement: 2,084cc (127 cu. in.)
Compression ratio:
21
: 1
Firing order:
1-3-4-2
Direction
of
revolution: Clockwise
(as
seen
from timing
gear
case)
Fuel:
Gas
oil (with greater cetane number than 45)
Engine oil: Mineral oil (heavy
duty
type)
Lubrication system: Forced-lubrication
Oil pump Trochoid pump
Oil
filter
Full-flow type with filter paper element
Cooling system: Forced-circulation
of
cooling water
Water pump Centrifugal pump
Thermostat
Wax
type
Fuel system:
Fuel injection pump
Fuel injection nozzles
Governor
Autotimer
(option)
Fuel
filter
Air
cleaner:
Electric system:
Starter
Glow plugs:
Bosch
type, Model PES4A65B
Bosch
type, Model DN40SD
Pneumatic,
Bosch
type, Model EP/MZ60A
Mechanical,
Bosch
type Model EP/RSV250
Mechanical
filter
paper element
Dry
type
with
filter
paper element
Oil bath type
with
pre-cleaner
12-volt
system
(common)
24-volt
system
(option)
Pinion shift
type, 12V-2.0
kW
Pinion shift type, 24V-2.0
kW
Sheathed type, 10.5V - S.3A, 22.5V - 4.8A
-
103-
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