3. Performance and Specifications
19
Engine Specifications and Performance
Engine Specifications
Item
Specifications
Remarks
DX22 Non Tier DX22 Tier 2 DX22 CN3
General Information
Engine type Four-stroke, V-type, water-cooled, turbocharged and air-cooled
Combustion chamber type Direct injection
Cylinder liner type Wet liner
Timing gear system Gear driven type
No. of piston rings Two compression rings and one oil ring
No. of cylinders 12
Cylinder I.D. 128 mm (5.0394 in.)
Cylinder stroke 142 mm (5.5906 in.)
Total displacement 21,927 cc
Compression ratio 14.6 : 1
Compression pressure 28 bar (406 psi) at 200 rpm
Engine dimensions (length × width ×
height)
1,658 x 1,593 x 1,701 mm (65.28 x 62.72 x 66.97 in.)
Engine weight 1,676 kg (3,695 lb)
Direction of rotation Counterclockwise
When seen
from flywheel
Firing order 1 - 12 - 5 - 8 - 3 - 10 - 6 - 7 - 2 - 11 - 4 - 9
Cooling system
Cooling method Water-cooled forced circulation
Coolant Capacity 24 L / 6.34 gal. (66 L / 17.44 gal. including the radiator)
Inside the
engine
Coolant pump type Centrifugal, belt-driven
Thermostat
Type Wax pellet type
Opening temperature 71 °C (160 °F)
Full opening temp. 85 °C (185 °F)
Coolant temperature sensor Installed
Lubrication System
Lubrication method Forced lubrication
Oil pressure
Idle (bar) Min. 1.0 bar (14.5 psi)
Rated (bar / psi) Min. 3.0 bar (43.5 psi)
Oil specifica-
tions
Oil Grade API CI-4
SAE viscosity SAE 10W40
Oil capacity
Total 78 L (20.6 gal.)
Maximum 75 L (20 gal.)
Minimum 23 L (6.1 gal.)
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